Crop Report
Black cutworm will likely become large enough to cut plants in most of Illinois over the next week or so; this is a good time to scout, with a special focus on fields where winter annual weed control was poor and/or weedy vegetation was dying while crops were emerging. While black cutworm (along with variegated cutworm and some other species) are more of a problem where broadleaf vegetation was present early, look out for armyworm in wheat and in corn where grassy weeds/cover crops were present early – again, the situation that most commonly leads to injury is when the crop emerges while grassy vegetation is dying/drying down. (Fields bordering wheat can be affected as well). We have nice, warm temperatures and (mostly) good soil moisture (perhaps a little too “good” in some areas), which will help seedling plants outrun early season insect injury. I have continued to receive only a handful of reports of injury – nothing out of the ordinary so far. (Note my own observations so far have been pretty limited to areas where we’re planting trials near Champaign and Monmouth – we’ll start to cover more of the state as our soybean insect sampling takes off in the next few weeks).