SAES-422 Multistate Research Activity Accomplishments Report
Sections
Status: Approved
Basic Information
- Project No. and Title: NCERA_old224 : IPM Strategies for Arthropod Pests and Diseases in Nurseries and Landscapes
- Period Covered: 01/01/2017 to 12/31/2017
- Date of Report: 03/01/2018
- Annual Meeting Dates: 12/10/2017 to 12/13/2017
Participants
Adams, Gerard (Plant Pathologist, Nebraska, UNL) Addesso, Karla (Entomologist, Tennessee, UT) Ali, Ahmed (AD) (Florida Entomologist/Pathologist, Davey Tree) Bonello, Pierluigi (Enrico) (Plant Pathologist, Ohio, OSU) Byrne, Jan (Plant Pathologist, Michigan, MSU) Caldwell, Doug (Entomologist, Florida, UFExtension) Chastagner, Gary (Plant pathologist, Washington, WSU) Chong, Juang-Horng1 (JC) (Entomologist, South Carolina, Clemson) Cranshaw, Whitney (Entomologist, Colorado, CSU) Held, David (Entomologist, Alabama, Auburn) Khachatryan, Hayk (Agriculture Economist, Florida, UF) Krischik, Vera (Entomologist, Minnesota, UM) Kunkel, Brian (Entomologist, Delaware, UD) Miller, Fredric (Entomologist, Illinois, Morten Arboretum) Payne, Thomas (administrative advisor, entomologist, Missouri) Rodriguez-Salamanca, Lina (Plant Pathologist, Iowa, ISU) Sadof, Clifford (Entomologost, Indiana, Purdue) Smitley, David (Entomologist, Michigan, MSU) Williamson, Chris (Entomologist, Wisconsin, UW)
Accomplishments
Short-term and long-term outcomes: Research by Dave Smitley, Cliff Sadof, Chris Williamson, Fred Miller and Dan Herms strongly supported the development and adoption of the highly successful and most widely used treatment by arborists, landscapers and city foresters for saving ash trees following emerald ash borer invasion: trunk injection with emamectin benzoate. The same researchers also tested and supported development of the only effective product readily available to homeowners at garden centers: basal soil drenches with imidacloprid or clothianidin. In addition, Cliff Sadof built the most heavily used decision-making tool for city foresters when calculation costs of treating ash trees versus tree removal. Research by Gary Chastagner in Washington state has been critical for providing state agencies in the northwest and USDA enough infornation to write guidelines for nurseries to allow production of clean nursey stock in areas where sudden oak death has been detected.
Milestones: The recent publication of our 'national elm trial' results hit a key benchmark for or joint committee projects. This publication provides arborists, landscapers, city foresters and others the best available data on the survival and vigor of twenty cultivars of elms previously bred to be resistant to Dutch elm disease.
Impacts
- Development of effective trunk injections for protecting trees from emerald ash borer has saved hundreds of cites in the midwestern United States millions of dollars in tree removal costs. For example, the city of Troy, Michigan spent 6 million dollars over a 3-year period in order to remove all of the ash street trees. Also, effective treatments allows cities to spread-out the tree removal efforts over a period of 5 years or more, by treating trees until they are ready to remove them.
- Work by Gary Chastagner and cooperators in Washington state has provided critical knowledge about the spread and development of sudden oak death, so that USDA APHIS has been able to develop protocal to allow nurseries in Oregon and Washington where the pathogen has been detected, to continue selling nursery stock to other states. This allowed these nurseries to continue to be profitable, saving millions of dollars in sales.