Tag Archives: Jensen

Corn Rootworms

Bryan Jensen, UW Extension and IPM Program Northern and Western corn rootworm beetles are emerging and larval feeding is starting to peak. Monitoring root damage over the next few weeks and scouting for beetles in continuous corn will provide useful … Continue reading

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Western Bean Cutworm Update

Bryan Jensen, UW Extension and IPM Program Based on degree day accumulations, DATCP’s Pest Bulletin reports and individual calls, the time for Western Bean Cutworm scouting is here for southern Wisconsin and soon will be in all corn growing areas … Continue reading

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Japanese Beetle info for WI Corn and Soybean Growers

Bryan Jensen, UW Extension and IPM Program A number of questions and several sightings of Japanese beetles have occurred this past week.  Emergence is well under way and damage has been evident in susceptible ornamentals as well as soybean.  This summer’s … Continue reading

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Brown Marmorated Stink Bug

Bryan Jensen, UW Extension and IPM Program The brown marmorated stink bug (BMSB) is a new stink bug species which was first detected in North America in 2001 and Wisconsin during 2010. BMSB has a wide host range and overwinter … Continue reading

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Soybean Aphid

Bryan Jensen, UW Extension and IPM Program Soybean aphid reports indicate that numbers are still low but isolated hot spots have been found within some fields. Now is the time to initiate field scouting if you haven’t already. I think … Continue reading

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Insect Updates-July 7, 2017

Bryan Jensen, UW Extension and IPM Program Potato Leafhoppers in alfalfa. This insect’s density has been variable this summer. Although the anticipated warm/dry weather could change that quickly. Within a limited geographical area this season, I have seen populations range … Continue reading

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Western Bean Cutworm

Bryan Jensen, UW Extension and IPM Program Hopefully, most of you have seen DATCP’s Pest Survey Report (subscribe) which indicates some Western bean cutworm have emerged in Wisconsin. I know some of you have because it has prompted a few calls … Continue reading

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Insect Notes-June 20, 2017

Bryan Jensen, UW Extension and IPM Program Armyworms are still being found at treatable levels in some corn fields.  A common scenario has been corn planted after a grass cover crop.  Other possibilities include spring grassy weeds and corn no-tilled … Continue reading

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First Generation European Corn Borer

Bryan Jensen, UW Extension and IPM Program Southern Wisconsin is approaching peak first generation European corn borer flight (600 DD, base 500 F).  The best treatment time is usually around 800-1000 degree days.  A lot of Wisconsin’s corn will not be … Continue reading

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True Armyworms

Bryan Jensen, UW Extension and IPM Program Surrounding states have reported armyworm alerts and damage.  Furthermore, DATCP’s WI Pest Bulletin has indicated a moderate flight so far. Although I’ve only received a few phone calls so far, it would be a … Continue reading

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