In this second report of the 2018 crop season, Winfield United agronomists from eight Midwest states report a big variation in corn and soybean growth stages in many states due to planting delays, cool weather then hot weather, excessive rain events and/or periods of dryness stress.
Many agronomists report challenging weed pressures due to lack of rain not activating residual herbicides or too much rain making applications difficult. Regular scouting is advised, along with tissue testing to ensure additional nitrogen gets added where needed. And to help optimize yield potential, most Winfield United agronomists are recommending foliar fungicides as insurance, especially on hybrids and varieties that lack adequate disease defense.
Here’s a brief synopsis by state. For more details, view the gallery.
Illinois: A hot May drove crops ahead of normal development stage, and higher rainfall areas may need more nitrogen.
Indiana: July heat in May and rainfall may increase need for more N, plus weed control and fungicide needs increasing.
Iowa: Good crops due to warmth and moisture, but extreme rains may cause some replanting and more N needed.
Michigan: Huge crop variance due to both floods and drought. Diseases, weeds and lack of N must be watched.
Minnesota: Late planting and recent heavy rains causing N needs and weed issues; drier areas showing herbicide issues.
Ohio: With hot May and wet June, rapid crop growth may lead to N shortfall without sidedress. Watch weeds and use fungicides.
South Dakota: Late planting and June heat pushing heat units to normal range finally. Scout weekly to monitor insects, diseases and use fungicides.
Wisconsin: Biggest issues are ensuring adequate N for crop, along with potential white mold issues in soybeans.
Check out the gallery for specifics on each state.