Brief Summary of Minutes of Annual Meeting

Summary of Minutes of Annual Meeting: Pat Donald called the meeting to order and welcomed participants at 8:30 am at the University Heights Housing meeting room, University of Vermont . This meeting was held in conjunction with the joint meeting of the 48th Society of Nematologists annual meeting and the Soil Ecology Society, 12th biennial meeting. The primary purpose of the meeting to review the current status and participation in the NC1035 Project Objectives and to report recent research results since the last meeting held in March 2009. Planning session and review of project Objectives Objective 1: To develop, evaluate, improve and integrate management techniques for soybean cyst nematode in the NC region to increase grower profitability. Discussion of the objective indicated that there was a general consensus that the majority of the committee are generating results for all of the sub objectives and that the members were on track in meeting the goals for this objective. These data were published in the fall and spring prior to the next growing season. Research on interactions of SCN with other pests were included. Exploratory work is being conducted by several members of the group on the nematicide seed treatments that are being explored by several private companies. Objective 2: To apply the concepts of invasion biology to H. glycines epidemiology. The Tier 1, 2 and 3 were outlined and a review of committee member participation indicated that the majority had completed Tier 1 protocol (Initial assessment of habitats for occurrence of H. glycines). Tier 2 protocol (Habitat conduciveness evaluation) was clarified by project writers and it was noted that only a few participants had completed this level. The need to identify suppressive soils and levels of conducive field populations was emphasized. Members were encouraged to complete this section to provide results for progression to Tier 3 (Associated soil quality assessment) and Tier 4 Protocol (Invasive biology model validation). Considerable discussion on the feasibility of completing Tier 3 and 4 protocols in the remaining project time frame and the need for research funding was not resolved. Objective 3: To develop a decision-support database for management of H. glycines and other regionally important nematodes. A limited discussion was held.

Accomplishments: Short-term outcomes: Data on H. glycines virulence phenotypes across the region were shared. Additional unbiased information on H. glycines resistant varieties and soybean yield in relation to SCN population density is available. Outputs: Outputs: Publications are reported in the Publications section. Michigan presented a reference handbook for growers, Soybean Cyst Nematode (SCN) Management by D. Brown-Rytlewski, G. Bird, F. Warner and K. Barnett, to the committee for discussion. The Michigan publication was submitted as part of the NC1035 project objective to develop decision-support data bases for management of SCN for the grower community Activities: Objective One: - Virulence profiles for H. glycines populations were conducted in Indiana, Minnesota, Ontario, and Tennessee. Host resistance for managing H. glycines was evaluated in Ontario, Michigan, and Tennessee. Funding for this activity was obtained from the Tennessee Soybean Promotion Board and Ontario Soybean Board. The impact of soil disturbance and tillage on H. glycines was measured in Tennessee. The interaction of H. glycines with other pests and pathogens was studied in Indiana. Alternative host studies were conducted in Indiana. Community structure studies were conducted in Michigan, Vermont, and Tennessee. Objective Two: Field results from candidate fields for Tier II activities were compared. Funding for a related objective was secured for Minnesota and Vermont. Objective Three: A SOP for screening resistant lines to H. glycines was published (SEC08). Lists of H. glycines-resistant varieties available commercially were compiled by Ontario, and Tennessee and provided to soybean producers. Milestones: Documentation of virulence phenotype variability across the north central region is vital information for public and private soybean breeders.

Scientific: Donald, P.A., Patananan, A., Cerna, C.S., Simmons, T., Castro, N., Wilgar, J.L., and Goheen, S.C. 2008. Protein SDS-PAGE characterization and comparison of soybean cyst nematodes. Nematropica 38: 137-144. Donald, P.A., Tyler, D.D., and Boykin, D. 2009. Short and long-term tillage effects on Heterodera glycines reproduction in soybean monoculture in west Tennessee. Soil and Tillage Research 104:126-133. Melakeberhan. H., S. Mennan, M. Ngouajio, and T. Dudek (2008). Effect of Meloidogyne hapla on multi-purpose use oilseed radish (Raphanus sativus). Nematology 10: 375-379. Melakeberhan, H. (2008). Nutrient use efficiency and precision management of nematodes-Concepts and possibilities. Nematologia Brasileira 32:1-12. Niblack, T.L., Tylka, G.L., Arelli, P., Bond, J., Diers, B., Donald, P., Faghihi, J., Ferris, V.R., Gallo, K., Heinz, R.D., Lopez-Nicora, H., Von Qualen, R., Welacky, T., and Wilcox, J.A. 2009. A standard greenhouse method for assessing soybean cyst nematode resistance in soybean:SCE08 (Standardized Cyst Evaluation 2008). Online. Plant Health Progress doi:10.1094/PHP-2009-0513-01-RV. Poromarto, S. H, and Nelson, B. D. 2009. Reproduction of soybean cyst nematode on dry bean cultivars adapted to North Dakota and northern Minnesota. Plant Disease 93: 507-511. Poromarto, S., and Nelson B. D. 2009. Crops hosts of soybean cyst nematode in the northern Great Plains. Phytopathology 99: S103-104. Poromarto, S. and Nelson, B. 2008. Effects of soybean cyst nematode on growth of dry bean. Phytopathology 98:S126. Melakeberhan, H., M. F. Avendano (2008). Spatio-temporal consideration of soil conditions and site-specific management of nematodes. Precision Agriculture 9: 341-354. Zasada, I., M. F. Avendano, Li, Y. C., T. Logan, H. Melakeberhan., S. R. Koenning, G. L. Tylka (2008). Potential of alkaline-stabilized biosolid to manage nematodes: Case studies on soybean cyst and root-knot nematodes. Plant Disease 92:4-13. Technical: Brown-Rytlewski, D., G. Bird, F. Warner and K. Barnett, 2009. Soybean Cyst Nematode (SCN) Management  A field guied for SCN management in Michigan. North Central Soybean Research Program and Michigan Soybean Checkoff. Michigan State University Extension, 27 p. Mock, V. A. J. E. Crech, W. Johnson, J. Faghihi, V. R. Ferris, A Westphal, K. Bradley. 2007. Winter Annual Weeds and Soybean Cyst Nematode Management. (With a guide for identifying known weed hosts). Purdue University Extension WS-36. Abstracts: Melakeberhan. H. (2008). Roles for nematology in understanding renewable energy needs and balancing food and socio economic interests. 5th International Congress of Nematology, Brisbane Australia. 117 Melakeberhan. H., A. Kravchenko, and M. Ngouajio (2008). Strategies for enhancing brassicas multipurpose attributes in managing nematode parasitism complexities. 3rd International Biofumigation Symposium, Canberra, Australia. 37. Welacky, T.W., T. Anderson, C. Fox, D. Hunt, and R. Michellutti. 2009. Effect of Riparian Hedgrows on beneficial organisms and economic pests in Ontario. Society of Nemotologists 48th Annual Meeting, Burlington Vermont. p 49.