As a whole, seasonal aphid numbers are low this year. University of Minnesota Extension entomologist Ian MacRae says in the last few weeks there are increases in winged aphids in traps. “Lots of them are small grain aphids. The biggest ones we’ve got are English Grain Aphids. I don’t know what they’re doing, but they’re doing it right.” MacRae says the winged aphids are looking for fresh food. “The grain matured about three weeks ago,” says MacRae. “I think we’ll see aphid numbers drop in the next few weeks getting closer to harvest. We’ll see another flush and start seeing aphid numbers dry up.”
Subscribe to RRFN
Get a weekly digest from RRFN to stay up-to-date on all the latest news in agriculture.