Nebraska's soybean acreage, estimated at 5.70 million acres in the June 30 USDA NASS report, was up 10% from last year and a record high. Nebraska corn at 9.80 million planted acres, is down 1% from last year.
Corn and soybean growers should be scouting for Japanese beetles, which have started emerging in eastern Nebraska. First identified in counties along the state's eastern border several years ago, the beetles were found as far west as Lincoln County in 2016.
It's important to consider soybean growth stage and preharvest interval when applying postemergence herbicides to avoid potential crop injury. This article describes how to determine crop growth stage and includes a table of application restrictions for common postemergence herbicides.
For the week ending June 11, Nebraska temperatures averaged four to eight degrees above normal and were accompanied by dry conditions, according to the USDA’s National Agricultural Statistics Service. Only the southern tip of the Panhandle and a few central counties received significant rain. The warm, dry weather allowed planting and other field work to continue.
Controlling glyphosate-resistant volunteer corn is a major challenge in some soybean fields this year as preemergence herbicides aren't very effective. Postemergence herbicides will be critical to its management.
Cool, wet conditions in May may be contributing to soybean seedling injury from disease. Scouting is recommended to identify diseases and differentiate injury from that caused by herbicides when determining potential stand loss.