Squash Vine Borer
More information available at https://extension.entm.purdue.edu/veg/squash-vine-borer/
For those trappers who are currently reporting, we can see that our first generation of active adult moths is declining.
Figure 1. Squash Vine Borer trap report-July 9, 2025.
Corn Earworm
More information available at https://extension.entm.purdue.edu/veg/cornearworm/
Montgomery County is still holding the record (La Porte did get the closest), but counts have dropped dramatically. We are also entering the silk stage for our field (dent) corn throughout the state. If sweet corn is silking AND dent corn is silking, the threshold for spray applications increases to 10 moths per night. The only locations currently reporting at/above the threshold are in LaPorte and Goshen County. All others are below the threshold, in some cases, even if dent corn is not silking. For many, now is the time to back off on the sprays. This will help conserve natural enemies in the fields and prevent aphid outbreaks.
Figure 2. Corn earworm trap report-July 9, 2025.