Activity of codling moth insecticides on secondary pests

John Wise and David Epstein, Michigan State University Extension, Department of Entomology - July 24, 2007

Editor’s note: This article is from the archives of the MSU Crop Advisory Team Alerts. Check the label of any pesticide referenced to ensure your use is included.

Second generation codling moth adult flight has increased over the last 10 days at the TNRC, initiating a July 15 biofix for the upcoming egg laying and hatch period. Field reports suggest that at the same time apple growers will be planning to control codling moth, several secondary insect pests, including Japanese beetle, apple maggot and spotted tentiform leafminer may need to be managed. The following table includes a list of insecticides recommended for second generation codling moth control, and their activity on these secondary pests.

Table 1. Activity of insecticides on secondary insect pests

Compound trade name	Japanese beetle	Apple maggot	Tentiform leafminer	Leafhoppers
Guthion/Imidan	Excellent	Excellent	Poor	Good (PLH only)
Calypso/Assail	Good	Excellent	Excellent	Excellent
Rimon	Poor	Poor	Good	Poor

Dr. Wise's work is funded in part by MSU's AgBioResearch.

This article was published by Michigan State University Extension. For more information, visit https://extension.msu.edu. To have a digest of information delivered straight to your email inbox, visit https://extension.msu.edu/newsletters. To contact an expert in your area, visit https://extension.msu.edu/experts, or call 888-MSUE4MI (888-678-3464).