Tag Archives: Jensen

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 peaking, in southern Wisconsin.  Female … Continue reading

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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 July. Waiting longer increases the … Continue reading

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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 cases, that is an understatement. … Continue reading

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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 anyone’s guess. Last year was … Continue reading

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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 few calls each year regarding … Continue reading

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Armyworms

Bryan Jensen, Dept. of Entomology and IPM Program Armyworms might be something you want to keep an eye open for during the next few weeks. No major concerns have been reported. This is just a heads up. First generation armyworm … Continue reading

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Early Season Below Ground Corn Insects

Bryan Jensen, Dept. of Entomology and Integrated Pest Management Program, University of Wisconsin-Madison As people are getting out to monitor corn health and emergence, I thought I would take a few minutes to review some general damage characteristics of seed … Continue reading

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Potato Leafhoppers

Bryan Jensen, Dept. of Entomology and Integrated Pest Management Program, University of Wisconsin-Madison Although the Arlington Agricultural Research Station is a small sample size, it appears we have received a migration potato leafhopper lately. No surprise based on the preceding … Continue reading

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Are You Concerned about Slugs in Corn and Soybean?

Bryan Jensen, Dept. of Entomology and Integrated Pest Management Program, University of Wisconsin-Madison You don’t need to be clairvoyant to be concerned about slugs in corn and soybean. It has been raining, continues to rain and frankly I don’t want … Continue reading

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Alfalfa Weevil

Bryan Jensen, Department of Entomology and IPM Program “Better late than never” may not apply to this situation. Accumulated degree days suggests that now is the time to start scouting for alfalfa weevil damage in the southern areas of Wisconsin. … Continue reading

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