Field and Garden: Moisture conditions vary as crop matures

“Have you found aphids in your soybean fields?” I asked the farmer.

“I haven’t looked,” was the reply. “But if there were any, last night’s rain would have washed them off.”

I was surprised by the farmer’s response. We’d only gotten about a third of an inch in Carrington the previous evening. I didn’t expect that amount of rain to have much effect on soybean aphids.

I asked the farmer, “How much r...