–Dr. Jeff Whitworth and Dr. Holly Schwarting
Last week wheat aphid populations were active and had increased considerably from the previous couple of weeks in north central Kansas. Populations of bird cherry-oat aphids, English grain aphids, and greenbugs were all reproducing and still migrating in. This week however, in fields we sampled in north central Kansas, the aphid populations had decreased drastically and the beneficials, especially lady beetles, had increased greatly.
Last week these English grain aphids were inadvertently identified as greenbugs.