By Christina DiFonzo, Entomologist

It’s a new year, time for a new Handy Bt Trait Table updated for 2017

This year brings a major change to the bulletin. After the frequent damage to Cry1F-traited hybrids by western bean cutworm during summer 2016, I worked with two colleagues to add a new column to the table. This column provides information on the insect x Bt combinations with documented field failures, resistance or cross-resistance.

The Handy Bt Trait Table updated for 2017 is posted on Michigan State University’s Field Crops Entomology website. I also posted a list of the citations for reduced effectiveness we used to create the new column.