Based on our sampling of wild hosts (daisy fleabane),
it is likely that we see an extended migration of adult plant bugs over the next few weeks. This gives us the potential to need multiple applications to control adult plant bugs pre-bloom. If this is the case, it will be even more important to monitor square retention. Sometimes following up on an insecticide application can be tricky. We may scout a field 7 days after treatment only to find the same number of (or more) adult plant bugs in the field. This may not mean treatment failure, but that more bugs have migrated into the field. By monitoring square retention, we can check to see that the pinhead squares present at application were protected by the treatment.
Another thing to consider is that the adult plant bugs are also lay eggs and immature plant bugs will start showing up just prior to or at first bloom. Action taken on this migrating population of adult plant bugs can help to reduce future populations of immature plant bugs later in the year.
With good cotton prices and an already late crop, we need to be sure we are staying ahead of insect issues and avoiding any more delays in maturity or losses yield.
If anyone has any observations of plant bugs or any other pests infesting fields, please let myself (662-809-3368) or Ron (334-332-9501) know. We are always here to help.