As we proceed through the growing season, there are several issues surrounding weed control and herbicide use in corn, soybean and small grain fields.

When there's an excess of rain, crops are susceptible to flooding and waterlogged soils, resulting in immersion of plants. 

Poison hemlock, buttercup, roughstalk bluegrass and perennial pasture weeds have grown too mature for effective control by June. 

Deb Campbell, an agronomist with Agronomy Advantage, shares her tips on nitrate testing fields.