A new insecticide provides effective control of Colorado potato beetle and several other potato pests, offering growers a valuable new tool to incorporate into their resistance management programs, writes Zsofia Szendrei of Michigan State University, Department of Entomology in this article.
Colorado potato beetles remain one of the most challenging insect pests in potato production. Growers now have access to Zivalgo (isocycloseram, PLINAZOLIN technology), a new foliar insecticide and important new tool for managing Colorado potato beetles.
Zivalgo is a Group 30 insecticide, meaning it controls insects through a different mode of action than other products currently labeled for Colorado potato beetle in potatoes. Adding new modes of action is critical for resistance management, as Colorado potato beetle has a long history of developing resistance to insecticides. Rotating insecticide groups throughout the season helps preserve the effectiveness of available products.
Zivalgo provides effective contact control of all Colorado potato beetle life stages and can be used throughout the growing season until 14 days prior to harvest. However, in fields where an at-planting insecticide has already controlled overwintered beetles, Zivalgo is generally best reserved for emerging summer adults, which typically begins in early July in many parts of Michigan.
To help protect this new chemistry and slow resistance development, avoid using Zivalgo against overwintered and summer adults in the same season.
Source: Michigan State University. Read the full article here
Image: Colorado potato beetle larva feeding on a plant. Photo by Zsofia Szendrei, MSU
Discover more from Potato News Today
Subscribe to get the latest posts sent to your email.
