Secondary insects. or those insects that lie in the soil just waiting to feed on seeds and seedlings were a major pest in corn until seed came treated with an insecticide.

But what about soybeans, aren’t they affected?

“Secondary insects aren’t a big problem in soybeans,” said Kevin Steffey, extension entomologist at the University of Illinois. “On occasion maggots and grape colaspis can cause isolated problems and every now and then.”

Besides the soybean seed is rich in oil (18 to 20%) and protein (34 to 36%) is probably not as tasty as corn seed that is rich in starch (62 to 65% of its total content) and attracts more pests..

Steffey added that the reason seed or seedling loss isn’t such is issue is because “the plant population is so heavy and the plant compensates so well that damage is never significant.”