Sometimes the discovery of something very small has a very big impact. That’s what happened when a tiny vinegar fly called the Spotted Wing Drosophila or SWD was first detected this September in traps put out this year by Michigan State University entomologists. Originally from Asia, the insect established a base in the western United States and Canada. The MSU discovery marks the first time that the insect has been found in the Midwest. This miniature pest loves tasty, soft treats damaging most berry crops, grapes, cherries and other tree fruits.
A Michigan SWD response team chaired by Rufus Isaacs, MSU entomologist, developed a pre-emptive Early Detection-Rapid Response (ED-RR) Plan, part of an integrated pest management (IPM) strategy for SWD. Entomologists and horticulturists from the MSU departments of Entomology and Horticulture, MSU Extension field staff members, Michigan Department of Agriculture staff members and fruit commodity representatives make up the team. I’d like to congratulate this group. Team members were on top of the issue, first discovering the pesky critter, then taking action. The team is doing further monitoring and is getting the word out to fruit growers to encourage them to plan for early detection through trapping, monitoring and taking crop-specific control measures.
Agriculture and Natural Resources Communications staff members helped in spreading the word with a news release and fact sheet. Rufus Isaacs and Noel Hahn, from the Department of Entomology, and Bob Tritten and Carlos Garcia, MSU Extension, wrote the fact sheet, MSU Extension Bulletin E-3140. Even though he is on assignment in Chile, Dr. Isaacs is still on the job keeping track of SWD and the media coverage of it.
Our staff members are actively researching and monitoring the bug to minimize its impact on fruit growers. The Spotted Wind Drosophila website gives up-to-date information, and our MSU Extension educators are in contact with fruit growers, giving out information and advice.