Blister beetles can be controlled, but use care because even dead, they’re still toxic, he said.
“Spray in the evening and hopefully any beetles on the alfalfa will drop to the ground. Then you can come through and pick up the hay without picking up the beetles,” Bailey said.
Bailey said he’s not surprised that some unusual insects are showing up. Agronomy practices, like seed treatments and breeding for specific pest control traits, can change the dynamic of crop pests.
“What we’ve seen in the last five years is that other pests that have been secondary, or maybe not a pest at all, are filling where we’re knocking out that major pest,” Bailey said.
Drought can also change the number and type of insects on crops.
“Certain insects like drought, others don’t, and those that benefit from drought often become a pest,” he said.
According to Bailey, producers need to be scouting to make sure there isn’t something out there eating the flowers, pods or ears of corn.