Duration: 10/01/2021 to 09/30/2022

Administrative Advisor(s):

NIFA Reps:

Non-Technical Summary

Statement of Issues and Justification

WERA-20 Multi-State project has been providing evidence-based knowledge and practical solutions to diseases caused by systemic pathogens in economically important fruit crops grown in the U.S. Recognizing the value of this project, WERA-20 participants attending the annual meeting held virtually during May 20-22, 2020, have unanimously recommended to continue the project with expanded objectives to include diseases of economically important sub-tropical fruit crops and woody ornamentals that constitute a large segment of specialty crops grown in the U.S. Fruit crops (pome fruits such as apple and pear, stone fruits such as cherries and peaches, citrus, grapevines, and berries such as strawberries, blueberries) and woody ornamentals (trees, shrubs and vines planted for aesthetic landscaping) contribute significantly to the national economy with farmgate value in tens of billions of dollars.

The temperate and sub-tropical perennial fruit crops and woody ornamentals are affected by a wide range of diseases caused by obligate and intracellular parasites, such as viruses, viroids, phytoplasmas, and systemic bacterial pathogens. The following examples highlight the threat of diseases caused by systemic pathogens leading to profound socio-economic impacts to fruit crop and woody ornamental industries in the U.S.

• Huanglongbing or citrus greening, caused by the bacterium Candidatus Liberibacter asiaticus and vectored by the Asian citrus psyllid, Diaphorina citri Kuwayama (Hemiptera: Liviidae), is causing devastation to Florida’s citrus industry.
• Pierce's Disease, caused by the bacterium Xylella fastidiosa, emerged as a serious problem to California vineyards after the introduction of the glassy-winged sharpshooter, Homalodisca vitripennis (Germar).
• Little cherry disease complex, caused by X-disease phytoplasma and Little cherry virus 2 and transmitted by leafhoppers and mealybugs, respectively, is threatening the long-term economic sustainability of the Pacific Northwest sweet cherry (Prunus avium) industry. The X-disease phytoplasma is also affecting other crops, such as peaches, nectarines and plums.
• Grapevine leafroll disease (GLD) is seriously affecting vineyard sustainability in many wine regions in the U.S. The spread of GLD occurred more rapidly in California vineyards subsequent to the introduction of the vine mealybug (Planococcus ficus Signoret), a vector with prolific reproductive and vectoring capacity compared to native mealybug species. Grapevine leafroll-associated virus 3, an insidious virus consistently found in vines showing GLD symptoms, is efficiently transmitted by several species of mealybugs causing widespread damage to health and productivity of vineyards throughout North America.
• Grapevine red blotch virus is causing economic damage to wine grape production across North American vineyards by affecting fruit yield and grape quality.
• The growing risk of virus diseases to berry crops (strawberry, blueberry, blackberry and raspberry) is alarming and affecting sustainability of berry crop industries in the U.S.
• Rose rosette, a damaging virus disease of roses transmitted by the eriophyid mite Phyllocoptes fructiphilus, is seriously affecting the American rose industry and causing significant decline of garden roses and urban landscapes.
• If there are no control measures implemented, several of the new viruses reported in recent years could cause significant losses in fruit crops and woody perennials.

In general terms, diseases caused by systemic pathogens are affecting plant growth and vigor, thereby diminishing gross yields and produce quality. In addition to these deleterious effects to growers and consumers, there are other significant indirect and induced multiplier impacts on allied business sectors dependent on fruit crop and woody ornamentals. It is worth noting that, besides crop losses due to diseases, time lost and cost in maintaining nursery stock and bringing perennial fruit crops and woody ornamentals to bearing is significant to nurseries, growers and producers. Deploying evidence-based strategies to protect these specialty crops from disease threats is critical not only to advance their sustainability and ensure the global competitiveness of producers in the U.S., but also a matter of vital importance to national food security and agricultural biosecurity.

As obligatory intracellular parasites, systemic pathogens are disseminated via clonal/vegetative propagation and grafting. Thus, movement of infected propagation material serves as the principal means of long-distance spread of systemic pathogens. In addition, many of these systemic pathogens can be transmitted by vectors, including arthropods (aphids, mites, thrips, beetles, hoppers, psyllids, mealybugs and whiteflies), nematodes, and plasmodiophorids. Changing farming practices, shifting cropping patterns and climate alterations are creating many opportunities for several of these pathogens and their vectors to spread into new geographic areas leading to disease epidemics with devastating crop losses. Once a pathogen is introduced into a new area via compromised planting stock, it can spread within a field or region by naturally occurring or invasive vectors. Eradication of alien pathogens introduced into new locations can be extremely laborious and highly expensive proposition. For example, over 57 million dollars have been spent in the U.S. and Canada for detection and eradication of Plum pox virus following its first observation in Pennsylvania in 1999. Concerted efforts at the regional or national level are important considerations for exclusion of alien pathogens and controlling introduced or local vectors to prevent the spread of vector-transmitted pathogens in nurseries and grower fields. A coordinated approach between scientific communities and state and federal regulatory agencies will help strengthening sanitary and phytosanitary issues to protect U.S. specialty crops from increasing threats of harmful diseases and facilitate the distribution of superior quality planting stock for healthy crops.

In recent years, information is emerging about new viruses and virus-like agents through high throughput sequencing in several fruit crops and woody ornamentals. Some of these viruses and virus-like agents are specialists, infecting only certain plant species or genera and others are generalists, having broad host range including plants in many plant families. Due to clonal propagation and grafting, co-infections of different viruses or viruses with other pathogens are more common in fruit crops and woody ornamentals making it difficult to associate symptoms with a specific pathogen under field conditions. In addition, plants co-infected with multiple viruses can exhibit phenotypes ranging from asymptomatic to severe decline and death. Since symptom expression depends on multitude of intrinsic and extrinsic factors and disease diagnosis based on visual symptoms is unreliable, a comprehensive elucidation of etiological and epidemiological aspects of diseases caused by systemic pathogens in different agro-ecologies will help advancing sustainable strategies to control diseases in fruit crops and woody ornamentals.

Since no effective chemical remedies or prophylactic measures are available to control obligate intracellular pathogens, diverse array of alternative control measures needs to be deployed to help specialty crop industries remain competitive and sustainable in the global marketplace. Unfortunately, there is no ‘one-size-fits-all’ approach to mitigate negative impacts of divergent pathogens due to their varying epidemiological characteristics. Although planting with pathogen-tested plant materials is recognized as the first line of defense in prevention and exclusion of diseases in perennial fruit crops and woody ornamentals, integrated strategies, consisting of different components conferring additive effect, are necessary in reducing and/or suppressing disease incidence in an eco-friendly manner. This requires a sound understanding of pathogen biology and their epidemiology and the mode of action and effectiveness of individual control measures to successfully implement integrated disease management strategies.

Due to the complex biology of systemic pathogens and the diseases they cause, multi-disciplinary, cross-institutional collaborations are critical to advance scientific knowledge and deploy effective strategies for mitigating negative impacts of diseases in specialty crops. The WERA-20 multi-state project has been actively contributing to this goal by bringing together expertise from different disciplines and institutions and providing an open forum for sharing scientific information and practical solutions to a wide range of disease problems. A large number of research and Extension faculty from universities and representatives from federal research programs, state and federal regulatory agencies and private sector are actively participating in WERA-20 annual meetings. Members of the WERA-20 are generating knowledge on viruses through high-throughput sequencing and other scientific approaches and deploying robust diagnostic methods to manage viral diseases in grower fields and reduce the risk of inadvertent introduction and dissemination of viral pathogens through planting materials from both foreign and domestic sources. With growing number of disease threats and the shortage of critical mass of research expertise in individual institutions, collaborations and synergistic partnerships facilitated through the WERA-20 project will ensure sustained coordination efforts at the national level for understanding and managing diseases caused by a wide range of systemic pathogens in perennial fruit crops and woody ornamentals. By aligning with mission-oriented goals of the National Clean Plant Network (NCPN) established by The Farm Bill - H.R. 6124 Food, Conservation, and Energy Act of 2008, the WERA-20 will continue pursuing a holistic strategy with NCPN Centers to enable the distribution of pathogen-tested propagation material for nurseries, growers and other stakeholders benefiting perennial specialty crop industries throughout the U.S. The WERA-20 project will also serve as a hub facilitating cross-institutional collaborations with state and federal regulatory agencies aiming to the harmonization of phytosanitary policies for cross-border exchange of pathogen-tested planting stock and to safeguard nurseries from disease threats in a seamless manner.

Objectives

Procedures and Activities

• Annual meetings are conducted to facilitate participation of research and extension faculty from universities, scientists from federal research institutions, members of the state and federal regulatory agencies, private sector scientists and others of diverse interests from commodity groups and specialty crop industries. The meetings will bring together individuals representing different disciplines and educational backgrounds and diverse agricultural sectors to pursue integrated research-based approaches to resolve complex issues for practical applications.

• Attendees will make presentations on current research on different aspects of systemic pathogens, diseases caused by these agents and their management. Timely sharing of research results during the meetings benefits the membership in addressing the challenges of current methods in pathogen detection and discuss new developments for overcoming bottlenecks in diagnostics. Deliberations at the meeting encourages collaborations among participants to address specific issues associated with emerging disease situations and promotes development of solutions for recalcitrant problems.

• Meetings are scheduled to enhance the exchange of information between research and regulatory professionals ensuring that all participants are aware of emerging disease situations. Participation from different regions in the U.S. and Canada ensures that diseases caused by systemic pathogens in fruit crops and woody ornamentals grown in diverse ecological regions of North America are addressed in a holistic manner during meeting deliberations.

• Meetings are held in different regions of the country to provide greater opportunity for the membership to interact with colleagues at local and regional institutions and organizations. Meetings also involve field visits to observe disease symptoms in target crops allowing those who are new to the subject and the region to become familiar with diseases, to expose participants to disease problems that are of restricted distribution, and also to showcase how growers, nurseries and specialty crop industries are dealing with challenges posed by diseases.

• The WERA-20 project will continue collaborations with members of the NCPN, USDA-ARS and USDA-APHIS and allied programs in Canada to pursue a broader approach in facilitating the production and distribution of pathogen-tested, vegetatively propagated perennial crops across North America. Members of these organizations address specific topics at the annual meeting related to appropriate disease diagnosis and elimination, identification of diseases of regional/national importance that will be considered for inclusion in certification and pathogen testing programs, and preparing crop-specific list of systemic pathogens. Critical discussions will also focus on developments in new methods to identify and characterize systemic pathogens, conduct research on disease epidemiology, revising phytosanitary permit requirements for the scientists, improving the ability of NCPN Centers to move valuable cultivars more quickly through State and Federal quarantines and certification programs.

• In addition to annual meetings, the entire membership is invited to engage in discussion through an established email exchange list. The diverse membership of this group assists in maximizing the distribution of information to all sectors of the specialty crop industry. Formal and informal participation of all groups (research, extension, and industry) in this project is encouraged.

Expected Outcomes and Impacts

Projected Participation

View Appendix E: Participation

Educational Plan

Minutes of annual meetings and written progress reports will provide documentation of accomplishments and deliverables from the membership during the preceding year. These documents are shared with participating institutions and displayed at the NIMSS web-site (http://www.nimss.org) for public access. A stable email address has been established to facilitate regular communications among the membership throughout the year for sharing information and facilitate knowledge exchange as needed. Members share research accomplishments on diseases affecting specialty crops via peer-reviewed and extension publications and presentations at professional and industry-sponsored meetings. Members of the project maintain individual websites to allow broad dissemination of timely information to stakeholders and the general public not served through the extension meetings and publications. Members communicate project activities via several dissemination pathways, including printed and electronic media, popular press articles, webinars and TV media, to ensure that stakeholders gain the knowledge they need for mitigating impacts of diseases in specialty crops. Project members serve in subject-matter task force to offer comprehensive responses to disease outbreaks guided by research. Members are involved in leadership activities to bring the project outcomes to bear on policy and regulatory issues pertinent to specialty crops. Members of the project actively participate in grower meetings, organize field days and other outreach events to share research outcomes. Information presented at the annual meetings is integrated into the NCPN programs and plant disease diagnostic clinics and incorporated into mission-oriented activities of federal and state regulatory agencies. Several members of this committee have large impacts in the education of both undergraduate and graduate students and training of early career professionals to prepare the next generation of scientists and competent workforce. The committee will continue inviting stakeholders to its annual meetings for participatory approaches to advance the goals of the project benefiting the industries that we serve.

Organization/Governance

Governance of the project include a Chair and a Secretary with an oversight from the Administrative Advisor and USDA-NIFA Advisor. Before the conclusion of each annual meeting, a chair and a secretary are elected for the next meeting and the location for the next meeting is identified. The Chair and Secretary positions rotate among members annually and will transition each year at the annual meeting. If warranted by the membership, the meeting will be held in conjunction with another regional or national professional scientific meeting in the same timeframe to expand participation beyond the WERA-20 membership. The Chair will arrange for the annual meeting, solicit items of business, prepare agenda, and preside at the annual meeting.  The secretary will record meeting minutes and collect annual reports from the project membership, and submit these documents to the administrative advisor for entering into the NIMMS system. The secretary will become Chair for next year’s annual meeting and a new individual is elected to serve as secretary. Annual meetings include individual State reports and round-table discussions on selected topics. In addition, special tours of technical interest will be organized during the meeting to visit local farms, nurseries and research institutions. Additional participants are encouraged to attend annual meetings. If needed, the Chair can appoint a subcommittee at the annual meeting to accomplish specific tasks identified by the membership. 

Literature Cited

A selective list of publications from the previous WERA-20 project are listed to provide background for the proposed project and to convey the broad scope of the project activities.

2020 

Alabi, O.J., Gaytan, B.C., Al Rwahnih, M. and Villegas, C. 2020. A description of the possible etiology of the cilantro yellow blotch disease. Plant Disease 104: 630-633.  

Beaver-Kanuya, E. and Harper, S. J. 2020. Development of RT-qPCR assays for the detection of three latent viruses of pome. Journal of Virological Methods 278: 113836. 

Brewer, E., Cao, M., Gutierrez, B.L., Bateman, M. and Li, R. 2020. Discovery and molecular characterization of a novel trichovirus infecting sweet cherry. Virus Genes 56: 380-385.

 Britt, K., Gebben, S., Levy, A., Al Rwahnih, M. and Batuman, O. 2020. The detection and surveillance of Asian citrus psyllid (Diaphorina citri)-associated viruses in Florida citrus groves. Frontiers in Plant Science, 10: 1687.  

Cieniewicz, E., Poplaski, V., Brunelli, M., Dombroswkie, J. and Fuchs, M. 2020. Two distinct Spissistilus festinus genotypes in the United States revealed by phylogenetic and morphological analyses. Insects 11:80. 

Cieniewicz, E.J., Qiu, W., Saldarelli, P. and Fuchs, M. 2020. Seeing is believing: Lessons from emerging viruses in grapevine. Journal of Plant Pathology 102:619-632. 

Diaz-Lara, A., Golino, D., Preece, J.E. and Al Rwahnih, M. 2020. Development of RT-PCR degenerate primers to overcome the high genetic diversity of grapevine virus T. Journal of Virological Methods 282:113883. 

Diaz-Lara, A., Martin, R.R., Al Rwahnih, M., Vargas, O.L. and Rebollar-Alviter, Á. 2020. First evidence of viruses infecting berries in Mexico. Journal of Plant Pathology 102:183-189. 

Diaz-Lara, A., Stevens, K., Klaassen, V., Golino, D. and Al Rwahnih, M., 2020. Comprehensive real-time RT-PCR assays for the detection of fifteen viruses infecting Prunus spp. Plants 9:273. 

Fuchs, M. 2020. Grapevine red blotch virus. In: Invasive Species Compendium and Crop Protection Compendium, CABI International, Wallingford, Oxfordshire, United Kingdom. 

Fuchs, M. 2020. Grapevine viruses: A multitude of diverse species with simple but poorly adopted management solutions in the vineyard. Journal of Plant Pathology 102:643-653. 

Gao, Z., Khot, L.R., Naidu, R.A. and Zhang, Q. 2020. Early detection of grapevine leafroll disease in a red-berried wine grape cultivar using hyperspectral imaging. Computers and Electronics in Agriculture 179:105807. 

Green, J.C., Rwahnih, M.A., Olmedo-Velarde, A., Melzer, M.J., Hamim, I., Borth, W.B., Brower, T.M., Wall, M. and Hu, J.S., 2020. Further genomic characterization of pineapple mealybug wilt-associated viruses using high-throughput sequencing. Tropical Plant Pathology 45:64-72. 

Hoffmann, M., Talton, W., Nita, M., Jones, T., Al Rwahnih, M., Sudarshana, M.R. and Almeyda, C. 2020. First report of grapevine red blotch virus, the causal agent of grapevine red blotch disease, in Vitis vinifera in North Carolina. Plant Disease 104:1266. 

Katsiani, A., Stainton, D., Lamour, K. and Tzanetakis, I.E. 2020. The population structure of Rose rosette virus in the United States. Journal of General Virology 101:676-684. 

Larrea-Sarmiento, A., Olmedo-Velarde, A., Green, J.C., Al Rwahnih, M., Wang, X., Li, Y-H., Wu, W., Zhang, J., Brower, T.M., Wall, M. and Hu, J.S. 2020. Identification and complete genomic sequence of a novel sadwavirus discovered in pineapple (Ananas comosus). Archives of Virology 165:1245–1248. 

Maree, H.J., Blouin, A.G., Diaz-Lara, A., Mostert, I., Al Rwahnih, M. and Candresse, T. 2020. Status of the current vitivirus taxonomy. Archives of Virology 165:451-458. 

Thekke-Veetil, T., Ho, T., Postman, J.D. and Tzanetakis, I. E. 2020. Blackcurrant waikavirus A, a new member of the genus Waikavirus, and its phylogenetic and molecular relationship with other known members. European Journal of Plant Pathology 157:59–64. 

Wang, Y., Wang, Q., Yang, Z., Li, R., Liu, Y., Li, J., Li, Z. and Zhou, Y. 2020. Development of a sensitive and reliable reverse transcription-droplet digital polymerase chain reaction (RT-ddPCR) assay for the detection of Citrus tristeza virus. European Journal of Plant Pathology 156:1175-1180.  

Wright, A. A., Cross, A. R. and Harper, S. J. 2020. A bushel of viruses: Identification of seventeen novel putative viruses by RNA-seq in six apple trees. Plos One 15:e0227669. 

Zhang, S., Yang, L., Ma, L., Tian, X., Li, R., Zhou, C. and Cao, M. 2020. Virome of Camellia japonica: discovery and molecular characterization of new viruses of different taxa in camellias. Frontiers in Microbiology 11:945. 

Zheng, L., Chen, M. and Li, R. 2020. Camellia ringspot associated virus 4, a proposed new foveavirus from Camellia japonica. Archives of Virology 165:1707-1710. 

2019 

Adiputra, J., Jarugula, S. and Naidu, R.A. 2019. Intra-species recombination among strains of the ampelovirus Grapevine leafroll-associated virus 4. Virology Journal 16:139.

Alabi, O.J., McBride, S., Appel, D.N., Al Rwahnih, M. and Pontasch, F.M. 2019. Grapevine virus M, a novel vitivirus discovered in the American hybrid bunch grape cultivar Blanc du Bois in Texas. Archives of virology 164:1739-1741.

Al Rwahnih, M., Alabi, O.J., Hwang, M.S., Stevens, K. and Golino, D., 2019. Identification and genomic characterization of grapevine Kizil Sapak virus, a novel grapevine-infecting member of the family Betaflexiviridae. Archives of Virology 164:3145-3149.

Alzubi, H., Yepes, L.M. and Fuchs, M. 2019. In vitro storage at low temperature of micropropagated grapevine rootstocks. In Vitro Cellular & Developmental Biology – Plant. 55:334-341.

Arnold, K.L., McRoberts, N., Cooper, M.L., Smith, R. and Golino, D. 2019. Virus surveys of commercial vineyards show value of planting certified vines. California Agriculture 73:90-95.

Beaver-Kanuya, E. and Harper, S. J. .2019. Detection and quantification of four viruses in Prunus pollen: Implications for biosecurity. Journal of Virological Methods 271:113673.

Beaver-Kanuya, E., Szostek, S. and Harper, S. J. 2019. Development of real-time RT-PCR assays for two viruses infecting pome fruit. Journal of Virological Methods 266:25-29.

Cieniewicz, E., Flasco, M., Brunelli, M., Onwumelu A., Wise, A. and Fuchs, M.F. 2019. Differential spread of grapevine red blotch virus in California and New York vineyards. Phytobiomes Journal 3:203-211. 

Diaz-Lara, A., Brisbane, R.S., Aram, K., Golino, D. and Al Rwahnih, M., 2019. Detection of new vitiviruses infecting grapevine in California. Archives of virology 164:2573-2580. 

Diaz-Lara, A., Navarro, B., Di Serio, F., Stevens, K., Hwang, M.S., Kohl, J., Vu, S.T., Falk, B.W., Golino, D. and Al Rwahnih, M. 2019. Two novel negative-sense RNA viruses infecting grapevine are members of a newly proposed genus within the family Phenuiviridae. Viruses 11: 685. 

Druciarek, T., Lewandowski, M. and Tzanetakis I.E. 2019. A new, sensitive and efficient method for taxonomic placement in the Eriophyoidea and virus detection in individual eriophyoids. Experimental and Applied Acarology 78:247-261. 

Hamim, I., Borth, W.B., Melzer, M.J., Suzuki, J.Y., Wall, M.M. and Hu, J.S. 2019. Occurrence of tomato leaf curl Bangladesh virus and associated subviral DNA molecules in papaya in Bangladesh: molecular detection and characterization. Archives of Virology 164:1661-1665.

Hamim, I., Al Rwahnih, M., Borth, W.B., Suzuki, J.Y., Melzer, M.J., Wall, M.M., Green, J.C. and Hu, J.S. 2019 Papaya ringspot virus isolates from papaya in Bangladesh: detection, characterization and distribution. Plant Disease 103:2920-2924. 

James D., Phelan, J. and Sanderson, D. 2019. Detection by high throughput sequencing and molecular characterization of complexes of fabviruses infecting Staccato® sweet cherry (Prunus aviam) in Canada. Canadian Journal of Plant Pathology 41:519-534. 

Lan, P., Tian, T., Pu, L., Rao, W., Li, F. and Li, R. 2019. Characterization and detection of a new badnavirus infecting Epiphyllum spp. Archives of Virology 164:1837-1841. 

Larrea-Sarmiento, A., Wang, X., Borth, W.B., Barone, R.P., Olmedo-Velarde, A., Melzer, M.J., Sugano, J.S.K., Galanti, R., Suzuki, J.Y., Wall, M.M. and Hu, J.S. 2019. First report of bean common mosaic virus infecting flowering ginger (Alpinia purpurata) in Hawaiʻi. Plant Disease 104:603. 

Liu, H., Wu, L., Zheng, L., Cao, M. and Li, R. 2019. Characterization of three new viruses of the family Betaflexiviridae associated with camellia ringspot disease. Virus Research 272:197668. 

Liu, Q., Xuan, Z., Wu, Y., Li, M., Zhang, S., Wu, D., Li, R. and Cao, M. 2019. Loquat is a new natural host of apple stem grooving virus and apple chlorotic leaf spot virus. Plant Disease 103: 3290. 

Martínez-Lüscher, J., Plank, C.M., Brillante, L., Cooper, M.L., Smith, R.J., Al-Rwahnih, M., Yu, R., Oberholster, A., Girardello, R. and Kurtural, S.K., 2019. Grapevine red blotch virus may reduce carbon translocation leading to impaired grape berry ripening. Journal of agricultural and food chemistry 67: 2437-2448. 

Nikolaeva E.V., Knier R., Molnar C., Peter K., Jones T. and Costanzo S. 2019. First Report of Strawberry (Fragaria × ananassa) as a Host of a ‘Candidatus Phytoplasma americanum’-Related Strain in the United States. Plant Disease 104: 560. 

Olmedo-Velarde, A., Park, A.C., Sugano, J., Uchida, J.Y., Kawate, M., Borth, W.B., Hu, J.S. and Melzer, M.J. 2019. Characterization of Ti ringspot-associated virus, a novel emaravirus associated with an emerging ringspot disease of Cordyline fruticosa (L.) Plant Disease 103: 2345-2352. 

Olmedo-Velarde, A., Roy, A., Belanger, C.A., Watanabe, S., Hamasaki, R.T., Mavrodieva, V.A., Nakhla, M.K., Melzer, M.J. 2019. First report of tomato chlorotic dwarf viroid infecting greenhouse tomato in Hawaii. Plant Disease 103: 1049. 

Pechinger, K., Chooi, K. M., MacDiarmid, R. M., Harper, S. J. and Ziebell, H. 2019. A new era for mild strain cross-protection. Viruses 11: 670. 

Peng, L., Wu, L., Grinstead, S.C., Kinard, G.R. and Li, R. 2019. Molecular characterization and detection of two novel carlaviruses infecting cactus. Archives of Virology 164:1873-1876. 

Sanderson, D. and James, D. 2019. Analysis of the genetic diversity of genome sequences of variants of apple hammerhead viroid. Canadian Journal of Plant Pathology 41:551-559. 

Thompson, B.D., Dahan, J., Lee, J., Martin, R.R. and Karasev, A.V. 2019. A novel genetic variant of Grapevine leafroll-associated virus-3 (GLRaV-3) from Idaho grapevines. Plant Disease 103:509-518. 

Thompson, B.D., Eid, S., Vander Pol, D., Lee, J. and Karasev, A.V. 2019. First report of grapevine red blotch virus in Idaho grapevines. Plant Disease 103:2704. 

Wu, L., Du, T., Liu, H., Peng, L. and Li, R. 2019. Complete genomic sequence of tea-oil camellia associated deltapartitivirus, a novel virus from Camellia oleifera. Archives of Virology 165:227-231. 

Wu, L., Liu, H., Bateman, M., Komorowaka, B. and Li, R. 2019. First identification and molecular characterization of apricot symptomless virus. Archives of Virology 164:3103-3106. 

Zurn, J.D., Ho, T., Li, R., Bassil, N.V., Tzanetakis, I., Martin, R.R. and Postman, J.D. 2019. First

report of Blackcurrant reversion virus in Ribes nigrum germplasm in the United States. Plant Disease. 103:1051.

Debat, H.J., Zavallo, D., Brisbane, R.S., Voncina, D., Almeida, R.P., Blouin, A.G., Al Rwahnih, M., Gomez-Talquenca, S. and Asurmendi, S. 2019. Grapevine virus L: a novel vitivirus in grapevine. European Journal of Plant Pathology 155:319-328.

Druciarek, T., Lewandowski, M. and Tzanetakis I.E. 2019. First report of European mountain ash ringspot-associated emaravirus in Sorbus aucuparia in Poland. Plant Disease 103:166.

Feng, X., Orellana, G.E., Green, J.C., Melzer, M.J., Hu, J.S. and Karasev, A.V. 2019. A new strain of Bean common mosaic virus from lima bean (Phaseolus lunatus): Biological and molecular characterization. Plant Disease 103:1220-1227.

Fuller, K. B, Alston, J.M. and Golino, D.A.  2019. Economic benefits from virus screening: A case study of grapevine leafroll in the north coast of California.  American Journal of Enology and Viticulture 70:139-146.

Hassan, M. and Tzanetakis I.E. 2019. Population structure, evolution and detection of blackberry leaf mottle associated virus, an emerging Emaravirus. Plant Pathology 68:775-782.

James D., Phelan, J. and Sanderson, D. 2019. Detection by high throughput sequencing and molecular characterization of complexes of fabaviruses infecting Staccato® sweet cherry (Prunus aviam) in Canada. Canadian Journal of Plant Pathology 41:519-534.

Milusheva, S., Phelan, J., Piperkova, N., Nikolova, V., Gozmanova, M. and James, D. 2019. Molecular analysis of the complete genome of an unusual virus detected in sweet cherry (Prunus avium) in Bulgaria. European Journal of Plant Pathology 153:197-207.

Moore, P.P., Hoashi-Erhardt, W., Finn, C.E., Martin, R.R. and Dossett, M. 2019. ‘WSU 2166’ Red raspberry.  HortScience 54:564-567.

Osterbaan, L. and Fuchs, M. 2019. Dynamic interplays between plant virus and their host interactants for symptom development. Journal of Plant Pathology 101:885–895.

Osterbaan, L.J., Choi, J., Kenney, J., Flasco, M., Vigne, E., Schmitt-Keichinger, C., Rebelo, A.R., Heck, M. and Fuchs, M. 2019. The identity of a single residue of the RNA-dependent RNA polymerase of grapevine fanleaf virus modulates vein clearing symptoms in Nicotiana benthamiana. Molecular Plant-Microbe Interactions 32:790-801.

Rasool, S., Naz, S., Rowhani, A., Diaz-Lara, A., Golino, D.A., Farrar, K.D. and Al Rwahnih, M., 2019. Survey of grapevine pathogens in Pakistan. Journal of Plant Pathology101:725-732.

Romero, J. L. R., Carver, G. D., Johnson, P. A., Perry, K. L. and Thompson, J. R. 2019. A rapid, sensitive and inexpensive method for detection of grapevine red blotch virus without tissue extraction using loop-mediated isothermal amplification. Archives of Virology. 164:1453-1457.

Sanderson, D. and James, D. 2019. Analysis of the genetic diversity of genome sequences of isolates/variants of apple hammerhead viroid. Canadian Journal of Plant Pathology 41: 551-559.

Sim, S.T., Khuu, N., Shoulders, J.R., Pudlo, W., Hoang, N.H. and Golino, D.A. 2019.  Elimination of rose viruses using microshoot tip tissue culture. Acta Horticulturae 1232:241-246

Sinha, R., Khot, L.R., Rathnayake, A.P., Gao, Z. and Naidu, R.A. 2019. Visible-near infrared spectroradiometry-based detection of grapevine leafroll-associated virus 3 in a red-fruited wine grape cultivar. Computers and Electronics in Agriculture 162:165-173.

Tzanetakis, I.E. and Martin R.R. 2019. Improving plant propagation methods for fruit disease control. In: Integrated management of insect pests and diseases of tree fruit (Ed. X. Xu and M.  Fountain), Burleigh Dodds, Cambridge, UK. pp275-288.

Vargas-Asencio, J., Liou, H., Perry, K. L. and Thompson, J. R. 2019. Evidence for the splicing of grablovirus transcripts reveals a putative novel open reading frame. Journal of General Virology 100:709-720.

Villamor, D.E., Ho, T., Al Rwahnih, M., Martin, R.R. and Tzanetakis, I.E., 2019. High Throughput Sequencing in Plant Virus Detection and Discovery. Phytopathology 109: 716-725.

Xiao, H., Li, C., Al Rwahnih, M., Dolja, V. and Meng, B. 2019. Metagenomic analysis of Riesling grapevine reveals a complex virome including two new and divergent variants of Grapevine leafroll-associated virus 3. Plant Disease 103:1275-1285.

Yepes, L., Cieniewicz, E. J., Krenz, B., McLane, H. M., Thompson, J. R., Perry, K. L. and Fuchs, M. 2018. Causative role of grapevine red blotch virus in red blotch disease. Phytopathology 108:902-909.

Yepes, L.M., Burr, T.J., Reid, C. and Fuchs, M. 2019. Elimination of the crown gall pathogen, Agrobacterium vitis, from systemically infected grapevines by tissue culture. American Journal of Enology and Viticulture 70:243-248.

Zurn, J.D., Ho, T., Li, R., Bassil, N.V., Tzanetakis, I.E., Martin, R.R. and Postman, J.D. 2019.  First report of blackcurrant reversion virus in Ribes nigrum germplasm in the United States. Plant Disease 103:1051.

2018 

Adiputra, J., Kesoju, S.R. and Naidu, R.A. 2018. The relative occurrence of Grapevine leafroll-associated virus 3 and Grapevine red blotch virus in Washington State vineyards. Plant Disease 102: 2129-2135. 

Al Rwahnih, M., Alabi, O. J., Westrick, N. M. and Golino, D. 2018. Prunus geminivirus A: a novel grablovirus infecting Prunus spp. Plant Disease 102:1246-1253. 

Al Rwahnih, M., Rowhani, A., Westrick, N., Stevens, K., Diaz-Lara, A., Trouillas, F. P., et al. 2018. Discovery of viruses and virus-like pathogens in pistachio using high-throughput sequencing. Plant Disease 102:1419–1425. 

Cieniewicz, E., Pethybridge S., Gorny, A., Madden, L., Perry, K.L., McLane, H. and Fuchs, M. 2017. Spatiotemporal spread of grapevine red blotch-associated virus in a California vineyard.  Virus Research 230:59-62. 

Cieniewicz, E., Pethybridge S.J., Loeb, G.M., Perry, K.L. and Fuchs, M. 2018. Insights into the ecology of grapevine red blotch virus in a diseased vineyard.  Phytopathology 108:94-102.

Cieniewicz, E., Thompson, J. R., McLane, H., Perry, K. L., Dangl, G. S., Martinson, T., Wise, A., Wallis, A. O'Connell, J., Dunst, R., Cox, K. and Fuchs, M. F. 2018. Prevalence and genetic diversity of grabloviruses in free-living Vitis spp. Plant Disease 102:1-9.

Dey, K.K., Leite, M., Hu, J.S., Jordan, R. and Melzer, M.J. 2018. Detection of Jasmine virus H and characterization of a second pelarspovirus infecting star jasmine (Jasminum multiflorum) and angelwing jasmine (J. nitidum) plants displaying virus-like symptoms. Archives of Virology 163:3051-3058.

Dey, K.K, Green, J.C., Melzer, M., Borth, W. and Hu, J.S. 2018. Mealybug wilt of pineapple and associated viruses. Acta Horticulturae 4:52.

Diaz-Lara, A., Klaassen, V., Stevens, K., Sudarshana, M.R., Rowhani, A., Maree, H.J., Chooi, K.M., Blouin, A.G., Habili, N., Song, Y. and Aram, K., 2018. Characterization of grapevine leafroll-associated virus 3 genetic variants and application towards RT-qPCR assay design. PloS One 13:p.e0208862.

Diaz-Lara, A., Golino, D. and Al Rwahnih, M. 2018. Genomic characterization of grapevine virus J, a novel virus identified in grapevine. Archives of Virology 163:1965-1967.

Finn, C.E., Strik, B.C., Yorgey, B.M., Peterson, M.E., Jones, P.A., Lee, J. and Martin, R.R. 2018. ‘Columbia Giant’ thornless trailing blackberry. HortScience 53:251-255.

Finn, C.E., Strik, B.C., Yorgey, B.M., Peterson, M.E., Jones, P.A., Lee, J. and Martin, R.R. 2018. ‘Columbia Sunrise’ thornless trailing blackberry. HortScience 53:256-260.

Finn, C.E., Strik, B., Mackey, T., Jones, P., Bassil, N. and Martin, R.R. 2018. ‘Echo’ ornamental reflowering blueberry.  HortScience 54:368-370.

Finn, C.E., Strik, B., Yorgey, B.M., Peterson, M.E., Jones, P.A., Lee, J., Bassil, N. and Martin, R.R. 2018. ‘Hall’s Beauty’ Thornless trailing blackberry. HortScience 54:371-376.

Hamim, I., Borth, W.B., Marquez, J., Green, J.C., Melzer, M.J. and Hu, J.S. 2018. Transgene-mediated resistance to Papaya ringspot virus: challenges and solutions Phytoparasitica 46:1-18.

Hamim, I., Borth, W.B., Melzer, M.J. and Hu, J.S. 2018. Ultra-sensitive detection of Papaya ringspot virus using single-tube nested PCR. Acta Virologica 62: 379-385.

Hassan, M., Shahid, M.S. and Tzanetakis, I.E., 2018. Molecular characterization and detection of a novel vitivirus infecting blackberry. Archives of Virology 163:2889–2893.

Ho, T., Harris, A., Katsiani, A., Khadgi, A., Schilder, A. and Tzanetakis, I. E. 2018. Genome sequence and detection of Peach rosette mosaic virus. Journal of Virological Methods 254: 8-12.

Hoang, N.H., Al Rwahnih, M., Preece, J., Hsu, E., Sim, S. and Golino, D. 2018. Development of a meristem-tip culture procedure for eradication of Cherry Virus-A in selected cultivars of cherry. In: In vitro Cellular & Developmental Biology-Animal (Vol. 54, pp. S30-S31). 233 New York, NY 10013 USA: Springer.

Jarugula, S., Gowda, S., Dawson, W.O. and Naidu, R.A. 2018. Development of infectious cDNA clones of Grapevine leafroll-associated virus 3 and analyses of the 5′ non-translated region for replication and virion formation. Virology 523:89-99.

James, D., Phelan J. and Sanderson, D. 2018. Blackcurrant leaf chlorosis-associated virus: Evidence of the presence of circular RNA during infections. Viruses 10:260.

Jelkmann, W., Sanderson, D., Berwarth, C. and James, D. 2018. First detection and complete genome characterization of a Cherry (C) strain isolate of plum pox virus from sour cherry (Prunus cerasus) in Germany. Journal of Plant Diseases 125:267-272.

Koloniuk, I., Thekke-Veetil, T., Reynard, J.S., Mavrič, I.P., Přibylová, J., Brodard, J., Kellenberger, I., Sarkisova, T., Špak, J., Lamovšek, J. and Massart, S., 2018. Molecular characterization of divergent closterovirus isolates infecting Ribes species. Viruses 10:369.

Liu, H., Wu, L., Nikolaeva, E.V., Peter, K., Liu, Z., Mollov, D., Cao, M. and Li R. 2018. Characterization of a new apple luteovirus identified by high-throughput sequencing. Virology Journal 15:85.

Lutes, L. A. and Pscheidt, J. W. 2018. First Report of Cherry leaf roll virus on sweet cherry in Oregon. Plant Disease. 102:691-691. 

Maree, H. J., Fox, A., Al Rwahnih, M., Boonham, N. and Candresse, T. 2018. Application of HTS for routine plant virus diagnostics: State of the art and challenges. Front. Plant Sci. 9:1082. 

Martin, I., Vigne, E., Berthold, F., Komar, V., Lemaire, O., Fuchs, M. and Schmitt-Keichinger, C. 2018. The fifty distal amino acids of the 2A^HP homing protein of grapevine fanleaf virus elicit a hypersensitive reaction on Nicotiana occidentalis.  Molecular Plant Pathology 19:731-743. 

Martin, R.R. and Tzanetakis, I.E. 2018.  High risk blueberry viruses by region in North America; Implications for certification, nurseries, and fruit production.  Viruses 10:342.

Osterbaan, L., Schmitt-Keichinger, C. Vigne, E. and Fuchs, M. 2018. Optimal systemic grapevine fanleaf virus infection in Nicotiana benthamiana following agroinoculation. Journal of Virological Methods 257:16-21.

Pallás, V., Sánchez-Navarro, J. and James, D. 2018. Recent advances on the multiplex molecular detection of plant viruses and viroids. Frontiers in Microbiology 9:2087.

Pandey, B., Naidu, R.A. and Grove, G.G. 2018. Detection and analysis of mycovirus‑related RNA viruses from grape powdery mildew fungus Erysiphe necator. Archives of Virology 163: 1019-1030. 

Perry, K.L., McLane, H., Thompson, J.R. and Fuchs, M. 2018. A novel grablovirus from non-cultivated grapevine (Vitis sp.) in North America.  Archives of Virology 163:259-262.

Pinon, A.F. and Martin, R.R. 2018. Frist report of strawberry necrotic shock virus in strawberry in Benquet, Philippines. Plant Disease 102:2385. 

Rott, M., Kesanakurti, P., Berwarth, C., Rast, H., Boyes, I., Phelan, J. and Jelkmann, W. 2018. Discovery of negative-sense RNA viruses in trees infected with apple rubbery wood disease by next-generation sequencing. Plant Disease 102:1254-1263.

Rowhani, A., Daubert, S., Arnold, K., Al Rwahnih, M., Klaassen, V., Golino, D. and Uyemoto, J.K., 2018. Synergy between grapevine vitiviruses and grapevine leafroll viruses. European Journal of Plant Pathology 151:919-925.

Serra, P., Messmer, A., Sanderson, D., James, D. and Flores, R. 2018. Apple hammerhead viroid-like RNA is a bona fide viroid: Autonomous replication and structural features support its inclusion as a new member in the genus Pelamoviroid. Virus Research 249:8-15.

Setiono, F. J., Chatterjee, D., Fuchs, M., Perry, K. L. and Thompson, J. R. 2018. The distribution and detection of grapevine red blotch virus in its host depends on time of sampling and tissue type. Plant Disease 102:2187-2193.

Thekke-Veetil, T., Ho, T., Postman, J.D., Martin, R.R. and Tzanetakis, I.E. 2018. A virus in American blackcurrant (Ribes americanum) with distinct genome features reshapes classification in the Tymovirales. Viruses 10:342. 

Wang, D., Hamim, I., Green, J.C., Borth, W.B., Melzer, M.J. and Hu, J.S. 2018.  First Report of Dasheen mosaic virus infecting Taro (Colocasia esculenta) in Bangladesh. Plant Disease 102:2668.

Wang, D., Ocenar^, J., Hamim, I., Green, J.C., Borth, W.B., Melzer, M.J., Suzuki, J., Wall, M.M., Matsumoto, T., Sun, G.F. and Hu, J.S. 2018.   First Report of Bean yellow mosaic virus Infecting Nasturtium (Tropaeolum majus) in Hawaii.  Plant Disease 103:168.

Wang, D., Hamim, I., Green, J.C., Borth, W.B., Melzer, M.J., Suzuki, J., Wall, M.M., Matsumoto, T., Sun, G.F. and Hu, J.S. 2018.  First Report of Apple of Peru (Nicandra physalodes) Infected with Pepper mottle virus in Hawaii. Plant Disease 103:169.

Weiland, J.E., Benedict, C., Zasada, I.A., Scagel, C.R., Beck, B.R., Davis, A., Graham, K., Peetz, A., Martin, R.R., Dung, J.K.S., Gaige, A.R. and Thiessen, L. 2018. Late summer disease symptoms in western Washington red raspberry fields associated with co-occurrence of Phytophthora rubi, Verticillium dahliae, and Pratylenchus penetrans, but not Raspberry bushy dwarf virus.  Plant Disease 102:938-947.

Wright, A.A., Szostek, S. and Harper, S.J. 2018. Diversity of three bunya-like viruses infecting apple. Archives of Virology 163:3339-3343.

Wu, L., Liu, H., Postman, J.D. and Li, R. 2018. Molecular characterization of a novel nucleorhabdovirus from black currant identified by high-throughput sequencing. Archives of Virology 163:1363-1366.

Yepes, L.M. Cieniewicz, E., Krenz, B., McLane, H., Thompson, J.R., Perry, K.L. and Fuchs, M. 2018. Causative role of grapevine red blotch virus in red blotch disease.  Phytopathology 108:902-909.

Zhang, J., Borth, W.B., Sether, D., Lin, B, Melzer, M.J., Shen, H., Pu, X, Sun, D., Nelson, S. and Hu, J.S. 2018. Multiplex detection of three banana viruses by reverse transcription loop-mediated isothermal amplification (RT-LAMP). Tropical Plant Pathology 43:543–551.

Zhang, J., Hu, J., Shen, H., Zhang, Y., Sun, D., Pu, X., Yang, Q., Fan, Q. and Lin, B. 2018. Genomic analysis of the Phalaenopsis pathogen Dickeya sp. PA1, representing the emerging species Dickeya fangzhongdai.  BMC Genomics 19:782.

Zheng, L., Wu, L., Postman, J.D., Liu, H. and Li, R. 2018. Molecular characterization of a novel closterovirus identified from blackcurrant by high-throughput sequencing. Virus Genes 54:828-832.

Zongoma, A.M., Dangora, D.B., Al Rwahnih, M., Bako, S.P., Alegbejo, M.D. and Alabi, O.J., 2018. First Report of Grapevine yellow speckle viroid 1, Grapevine yellow speckle viroid 2, and Hop stunt viroid infecting grapevines (Vitis spp.) in Nigeria. Plant Disease 102: 259. 

Zongoma, A.M., Dangora, D.B., Al Rwahnih, M., Bako, S.P., Alegbejo, M.D. and Alabi, O.J., 2018. First Report of Grapevine leafroll-associated virus 1 Infecting Grapevines (Vitis spp.) in Nigeria. Plant Disease 102: 258. 

2017

Al Rwahnih, M., Alabi, O.J., Westrick, N.M., Golino, D. and Rowhani, A. 2017. Description of a novel monopartite geminivirus and its defective subviral sequence in grapevine (Vitis vinifera L.). Phytopathology 107: 240-251.  

Al Rwahnih, M., Alabi, O.J., Westrick, N.M., Golino, D. and Rowhani, A. 2017. Near complete genome sequence of grapevine fabavirus, a novel putative member of the genus Fabavirus. Genome Announcements 4:e00703-16.

Al Rwahnih, M., Rowhani, A. and P. Saldarelli. 2017. Grapevine leafroll-associated virus-7. In: Grapevine Viruses: Molecular Biology, Diagnostics and Management.  Meng, B., Martelli, G.P., Golino, D.A. and Fuchs, M.F. (eds). Springer Cham, Switzerland, pp. 221-228. 

Arnold, K., Golino, D. A. and N. McRoberts. 2017. A synoptic analysis of the temporal and spatial aspects of grapevine leafroll disease in an historic Napa vineyard and experimental vine blocks. Phytopathology. 107:418-426.

Burger, J., Maree, H.J., Gouveia, P., and Naidu, R.A. 2017. Grapevine leafroll-associated virus 3. In: Grapevine Viruses: Molecular Biology, Diagnostics and Management.  Meng, B., Martelli, G.P., Golino, D.A. and Fuchs, M.F. (eds). Springer Cham, Switzerland, pp. 167-195.

Canik-Orel, D., Reid, C., Fuchs, M. and Burr, T. 2017. Environmental sources of Agrobacterium vitis in vineyards and wild grapevines. American Journal of Enology and Viticulture, 68:213-217.

Cieniewicz, E.J., Perry, K.L. and Fuchs, M. 2017. Grapevine red blotch virus: Molecular biology of the virus and management of the disease.  In: Grapevine Viruses: Molecular Biology, Diagnostics and Management.  Meng, B., Martelli, G.P., Golino, D.A. and Fuchs, M.F. (eds). Springer Cham, Switzerland, pp. 303-314. 

Coletta-Filho, H.D., Francisco, C.S., Lopes, J.R.S., Muller, C. and Almeida, R.P.P. 2017. Homologous recombination and Xylella fastidiosa host-pathogen associations in South America. Phytopathology 107: 305-312. 

Cornara, D., Cavalieri, V., Dongiovanni, C., Altamura, G., Palmisano, F., Bosco, D., Porcelli, F., Almeida, R.P.P. and Saponari, M. 2017. Transmission of Xylella fastidiosa by naturally infected Philaenus spumarius (Hemiptera, Aphrophoridae) to different host plants. Journal of Applied Entomology 141:80-87. 

Cornara, D., Saponari, M., Zeilinger, A.R., de Stradis, A., Boscia, D., Loconsole, G., Bosco, D., Martelli, G.P., Almeida, R.P.P. and Porcelli, F. 2017. Spittlebugs as vectors of Xylella fastidiosa in olive orchards in Italy. Journal of Pest Science 90:521-530. 

Daugherty, M.P., Zeilinger, A.R. and Almeida, R.P.P. 2017. Conflicting effects of climate and vector behavior on the spread of a plant pathogen. Phytobiomes 1:46-53. 

Di Bello, P.L., Laney, A.G., Druciarek, T., Ho, T., Gergerich, R.C., Keller, K.E., Martin, R.R. and Tzanetakis, I.E. 2016. A novel Emaravirus is associated with redbud yellow ringspot disease. Virus Res. 222:41-47.

Donda, B. P., Jarugula, S. and Naidu, R. A. 2017. An analysis of the complete genome sequence and subgenomic mRNAs reveals unique features of the ampelovirus, Grapevine leafroll-associated virus 1. Phytopathology 107:1069-1079.

Fagundes Silva, J.M., Al Rwahnih, M., Blawid, R., Nagata, T. and Fajardo, T. 2017. Discovery and molecular characterization of a novel anamovirus, Grapevine enamovirus-1. Virus genes 53:667-671.

Francisco, C.S., Ceresini, P.C., Almeida, R.P.P. and Coletta-Filho, H.D. 2017. Spatial genetic structure of coffee-associated Xylella fastidiosa populations indicates that cross-infection does not occur with sympatric citrus orchards. Phytopathology 107:395-402.

Fuchs, M. Schmitt-Keichinger, C. and Sanfaçon, H. 2017. A renaissance in nepovirus research provides new insights into their molecular interface with hosts and vectors. Advances in Virus Research 97:61-105.

Fuchs, M. and Lemaire, O. 2017. Novel approaches for virus disease management. In: Grapevine Viruses: Molecular Biology, Diagnostics and Management.  Meng, B., Martelli, G.P., Golino, D.A. and Fuchs, M.F. (eds). Springer Cham, Switzerland, pp. 599-621.

Giampetruzzi, A., Saponari, M., Almeida, R.P.P., Essakhi, S., Boscia, D., Loconsole, G. and Saldarelli, P. 2017. Complete genome sequence of the olive-infecting strain Xylella fastidiosa subsp. pauca De Donno. Genome Announcements 5:e00569-17. 

Giampetruzzi, A., Saponari, M., Loconsole, G., Boscia, D., Savino, V.N., Almeida, R.P.P., Zicca, S., Landa, B.B., Chacón-Diaz, C. and Saldarelli, P. 2017. Genome-wide analysis provides evidence on the genetic relatedness of the emergent Xylella fastidiosa genotype in Italy to isolates from Central America. Phytopathology 107:816-827. 

Golino, D., Fuchs, M., Al Rwanih, M., Farrar, K., and Martelli, G.P. 2017. Regulatory aspects of grape virology: Certification, quarantine and harmonization.  In: Grapevine Viruses: Molecular Biology, Diagnostics and Management.  Meng, B., Martelli, G.P., Golino, D.A. and Fuchs, M.F. (eds). Springer Cham, Switzerland, pp. 581-598. 

Golino, D., Fuchs, M., Sim, S., Farrar, K. and Martelli, G. 2017. Improvement of grapevine planting stock through sanitary selection and pathogen elimination.  In: Grapevine Viruses: Molecular Biology, Diagnostics and Management.  Meng, B., Martelli, G.P., Golino, D.A. and Fuchs, M.F. (eds). Springer Cham, Switzerland, pp. 561-579.

Green, J.C., Borth, W.B., Melzer, M.J., Wang, Y.N., Hamim, I. and Hu, J.S. 2017. First Report of Bean common mosaic virus infecting Phaseolus lunatus in Hawaii. Plant Disease 101:1557.

Green, J.C. and Hu. J.S. 2017. Editing plants for virus resistance using CRISPR-Cas. Acta Virologica 61: 138 – 142.

Hassan, M., Di Bello, P.L., Keller, K.E., Martin, R.R., Sabanadzovic, S. and Tzanetakis, I. E. 2017. A new, widespread emaravirus discovered in blackberry. Virus Research 235:1-5. 

Herrbach, E., Alliaume, A., Prator, C.A., Daane, K.M., Cooper, M.L. and Almeida, R.P.P. 2017.

Vector transmission of grapevine-leafroll associated viruses. In: Grapevine Viruses: Molecular Biology, Diagnostics and Management. B. Meng, G.P. Martelli and D. Golino, eds. Springer Cham, Switzerland, pp.483-503.

Hoheisel, G., Moyer, M.M., Daniels, C.H., Miller, T.W., Walsh, D., Zasada, I., Naidu, R. A., and Davenport, J.R. 2017. Pest Management Guide for Grapes in Washington. EB0762, 56 pp.

James, D. and Phelan, J. 2017. Complete genome sequence and analysis of blackcurrant leaf chlorosis associated virus, a new member of the genus Idaeovirus. Archives of Virology. 162: 1705-1709.

Jimenez, J., Webster, C.G., Moreno, A., Almeida, R.P.P., Blanc, S., Fereres, A. and Uzest, M. 2017. Fasting alters aphid probing behaviour but does not universally increase the transmission rate of non-circulative viruses. Journal of General Virology 98:3111-3121. 

Kandel, P.P., Almeida, R.P.P., Cobine, P.A. and De La Fuente, L. 2017. Natural competence rates are variable among Xylella fastidiosa strains and homologous recombination occurs in vitro between subspecies fastidiosa and multiplex. Molecular Plant-Microbe Interactions 30: 589-600. 

Labroussaa, F., Ionescu, M., Zeilinger, A.R., Lindow, S.E. and Almeida, R.P.P. 2017. A chitinase is required for Xylella fastidiosa colonization of its insect and plant hosts. Microbiology 163:502-509.

Li, Y., Wang, Y., Hu, J., Xiao, L., Tan, G., Lan, P., Liu, Y. and Li, F. 2017. Molecular and biological characteristics of Tomato mottle mosaic virus Chinese isolate. Virology Journal 14:15-23. 

Li, R., Fuchs, M., Perry, K.L., Mekuria, T. and Zhang, S. 2017. Development of a fast AmplifyRP Acceler8 diagnostic assay for grapevine red blotch-associated virus.  Journal of Plant Pathology 99:657-662.

Martin R.R. and Tzanetakis, I. E. 2017. Introduction to diseases caused by viruses and virus-like agents. Pp. 70-71. In: Martin, R.R., Ellis, M.A., Williamson, B. and Williams, R.N. (Ed) Compendium of Raspberry and Blackberry Diseases and Insects 2nd Edition. APS Press, St. Paul, MN.

Martin, R.R. and Tzanetakis, I.E. 2017. Other viruses and virus-like agents. In: Pp. 91-93. In: Martin, R.R., Ellis, M.A., Williamson, B. and Williams, R.N. (Ed) Compendium of Raspberry and Blackberry Diseases and Insects 2nd Edition. APS Press, St. Paul, MN.

MacFarlane, S.A., Tzanetakis, I.E., Halgren, A.B. and Martin, R.R. 2017. Raspberry mosaic disease complex. Pp. 75-78. In: Martin, R.R., Ellis, M.A., Williamson, B. and Williams, R.N. (Ed.) Compendium of Raspberry and Blackberry Diseases and Insects 2nd Edition. APS Press, St. Paul, MN.

Naidu, R.A. 2017. Grapevine leafroll-associated virus 1. In: Grapevine Viruses: Molecular Biology, Diagnostics and Management.  Meng, B., Martelli, G.P., Golino, D.A. and Fuchs, M.F. (eds). Springer Cham, Switzerland, pp. 127-139.

Nikolaeva, E. V., Welliver, R., Rosa, C., Jones, T., Peter, K., Costanzo, S., Davis, R. E. 2017. First Report of Apple (Malus domestica) as a Host of ‘Candidatus Phytoplasma pruni’ in United States. Plant Disease. 101. P. 378.

Osman, F., Al Rwahnih, M. and Rowhani, A. 2017. Real-Time RT-qPCR Detection of Cherry Rasp Leaf Virus, Cherry Green Ring Mottle Virus, Cherry Necrotic Rusty Mottle Virus, Cherry Virus A and Apple Chlorotic Leaf Spot Virus in Stone Fruits. Journal of Plant Pathology 99:279-285.

Poojari, S., Boulé, J., DeLury, N., Lowery, D.T., Rott, M., Schmidt, A-M. and Urbez-Torres, J.T. 2017. Epidemiology and genetic diversity of grapevine leafroll-associated viruses in British Columbia. Plant Disease 101:2088-2097.

Poojari, S., Lowery, D.T., Rott, M., Schmidt, A-M. and Urbez-Torres, J.T. 2017. Incidence, distribution and genetic diversity of Grapevine red blotch virus in British Columbia. Canadian Journal of Plant Pathology 39:201-211.

Poudel, B. and Scott, S.W. 2017. A report of Cherry rusty mottle-associated virus in South Carolina. Australasian Plant Disease Notes 12:15. 

Prator, C.A., Kashiwagi, C.M., Voncina, D. and Almeida, R.P.P. 2017. Infection and colonization of Nicotiana benthamiana by Grapevine leafroll-associated virus 3. Virology 510: 60-66.

Quito-Avila, D.F., Tzanetakis, I.E. and Martin, R.R. 2017. Raspberry latent virus. Pp. 84-85. In: Martin, R.R., Ellis, M.A., Williamson, B. and Williams, R.N. (Ed) Compendium of Raspberry and Blackberry Diseases and Insects 2nd Edition. APS Press, St. Paul, MN.

Rasool, S., Naz, S., Rowhani, A., Golino, D.A., Westrick, N.M., Farrar, K.D. and Al Rwahnih, M. 2017. First report of Grapevine Pinot Gris virus infecting grapevine in Pakistan. Plant Disease 101:1958.

Ricketts, K.D., Gómez, M.I., Fuchs, M.F., Martinson, T.E., Smith, R.J., Cooper, M.L., Moyer, M. and Wise A. 2017. Mitigating the economic impact of grapevine red blotch: Optimizing disease management strategies in U.S. vineyards.  American Journal of Enology and Viticulture 68:127-135.

Rott, M., Xiang, Y., Boyes, I., Belton, M., Saeed, H., Kesanakurti, P., Hayes, S., Lawrence, T., Birch, C., Bhagwat, B. and Rast, H. 2017. Application of next generation sequencing for diagnostic testing of tree fruit viruses and viroids. Plant Disease 101:1489-1499.

Rowhani, A., Daubert, S.D., Uyemoto, J.K., Al Rawhnih, M. and Fuchs, M. 2017. American nepoviruses. In: Grapevine Viruses: Molecular Biology, Diagnostics and Management.  Meng, B., Martelli, G.P., Golino, D.A. and Fuchs, M.F. (eds). Springer Cham, Switzerland, pp. 109-126.

Rowhani, A., Uyemoto, J.K., Golino, D., Daubert, S.D., and M. Al Rwahnih. 2017. Viruses Involved in Graft-Incompatibility and Decline.  In: Grapevine Viruses: Molecular Biology, Diagnostics and Management.  Meng, B., Martelli, G.P., Golino, D.A. and Fuchs, M.F. (eds). Springer Cham, Switzerland, pp. 289-302.

Rowhani, A., Osman, F., Daubert, S.D., Al Rwahnih, M. and P. Saldarelli. 2017. Polymerase Chain Reaction Methods for the Detection of Grapevine Viruses and Viroids.  In: Grapevine Viruses: Molecular Biology, Diagnostics and Management.  Meng, B., Martelli, G.P., Golino, D.A. and Fuchs, M.F. (eds). Springer Cham, Switzerland, pp. 431-450.

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Wang, Y.N., Melzer, M., Borth, W., Green, J. Hamim, I. and Hu, J.S. 2017. First report of Bean yellow mosaic virus in vanilla in Hawaii. Plant Disease 101:1557.

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Attachments

Land Grant Participating States/Institutions

AR, CA, HI, ID, MN, NY, TX, WA

Non Land Grant Participating States/Institutions

Agdia, Inc., California Department of Agriculture, University of California, Davis, Washington State Dept. of Agriculture