Bryan Jensen, Dept. of Entomology and IPM Program So far this summer, soybean insects have been relatively quiet. However, there have some reports of soybean aphids increasing. That may not be too surprising based on …
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Corn Rootworm Beetle Scouting
Bryan Jensen, Department of Entomology and IPM Program We are soon to be in that time period where female corn rootworm beetles will be laying the majority of their eggs. Scouting for adults during this …
True Armyworms Continued
Bryan Jensen, UW Extension, UW-Madison Integrated Pest Management Program Just the name “armyworms” conjures up images of defoliated corn fields. Well, this summer they are living up to their names in isolated fields. To be sure, …
Two-spotted Spider Mites
Bryan Jensen, UW Extension, UW-Madison Integrated Pest Management Program Some may think this article should fall in the category of “sleeping with the light on” but I am not so sure. We’ve had some relatively hot …
True Armyworms
Bryan Jensen, UW Extension, UW-Madison Integrated Pest Management Program No worries just yet. More of a feeling than anything else. Based on a few calls and emails, be on the lookout for armyworms. The summer generation …
Gear Up: Western Bean Cutworm
Bryan Jensen, UW Extension, UW-Madison Integrated Pest Management Program It is that time of the year to start thinking, if not scouting for Western bean cutworm. Degree days suggest the moth flight is underway, although not …
It’s Time to Check for Corn Rootworm Damage
Bryan Jensen, UW Extension, UW-Madison Integrated Pest Management Program The next 2-3 weeks will be a good time to start spot-check continuous corn fields for corn rootworm feeding injury. Peak damage will usually occur by late …
Pea Aphids: Where did they come from?
Bryan Jensen, Dept. of Entomology and IPM Program After several calls this week along with my own observations it is clear that pea aphids populations in alfalfa fields are much higher than normal. In some …
Japanese Beetles
Bryan Jensen, IPM Program and Dept. of Entomology They’re back. Anyone surprised? Adult Japanese beetles are starting to emerge, however, we don’t expect peak emergence for a few more weeks. What will happen in 2018 is …
First Generation European Corn Borer
Bryan Jensen, Dept. of Entomology and IPM Program It is no secret that European corn borer populations have been extremely low for several years. However, what does catch my attention is that I still get a …