Tag Archives: Cullen

Dry Weather Increases Risk of Twospotted Spidermite

Dry Weather Increases Risk of Twospotted Spidermite Eileen Cullen (Dept. of Entomology) Drought conditions are favorable for two-spotted spider mite outbreaks. Dry weather, low humidity and temperatures exceeding 85°F are associated with spider mite population growth. Spider mites damage plants … Continue reading

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Questions About Whiteflies in Soybean

Questions About Whiteflies in Soybean Eileen Cullen (Dept. of Entomology) Whiteflies have been reported over the last week from a farmer call to Carl Duley, Agriculture Agent, UW-Extension Buffalo County in western Wisconsin. I also found a few whiteflies during … Continue reading

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Corn Earworm Alert for Processing Sweet Corn

Corn Earworm Alert for Processing Sweet Corn Eileen Cullen, Extension Entomologist The Wisconsin DATCP Wisconsin Pest Bulletin’s Corn Earworm pheromone trap network has registered a significnat and accelerating August corn earworm (CEW) migration flight. As reported in the August 11th issue … Continue reading

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Study Confirms Resistance of Western Corn Rootworm Field Populations Bt CRW Corn in Northeastern Iowa

Study Confirms Resistance of Western Corn Rootworm Field Populations Bt CRW Corn in Northeastern Iowa Eileen Cullen, Extension Entomologist An Iowa State University entomologist research group led by Aaron J. Gassmann reported development of resistance by field populations of western … Continue reading

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Western Bean Cutworm Emergence Just Peaking in North-Central and Northeastern Counties

Western Bean Cutworm Emergence Just Peaking in North-Central and Northeastern Counties Eileen Cullen, Extension Entomologist The WI DATCP Wisconsin Pest Bulletin reported August 4th the phenology model for Western Bean Cutworm moth emergence suggests that 75% of the moth flight is … Continue reading

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Twospotted Spider Mite Potential on Soybean in Dry Areas

Twospotted Spider Mite Potential on Soybean in Dry Areas Eileen Cullen, Extension Entomologist On July 22 Phil Pellitteri, UW-Madison Insect Diagnostic Clinic, received a report (confirmed with a plant sample) of twospotted spider mite on soybean in Green County near … Continue reading

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Japanese Beetle – Scouting and Thresholds for Soybean and Corn

Japanese Beetle – Scouting and Thresholds for Soybean and Corn Eileen Cullen, Extension Entomologist Questions have come in this week concerning Japanese beetle on soybean and corn. There is one generation of Japanese beetle per year and we typically see … Continue reading

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Western Bean Cutworm Moth Flight Has Begun

Western Bean Cutworm Moth Flight Has Begun Eileen Cullen, Extension Entomologist The annual flight of western bean cutworm (WBC) moths began this past week. The first moths of the season were recorded June 23-29 in Adams, Calumet, Iowa, Marquette and Sauk … Continue reading

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Biological Control Parasitoid Released for Emerald Ash Borer Does not Harm Honeybee Colonies

Biological Control Parasitoid Released for Emerald Ash Borer Does not Harm Honeybee Colonies Eileen Cullen, Extension Entomologist Entomolgists with University of Wisconsin-Madison and USDA APHIS have initiated a biological control program for Emerald Ash Borer. Like other classical biological control … Continue reading

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Western Bean Cutworm Egg Masses and Larval Hatch- Scout Field and Processing Sweet Corn Fields

Western Bean Cutworm Egg Masses and Larval Hatch- Scout Field and Processing Sweet Corn Fields Eileen Cullen, Extension Entomologist Careful field scouting in field corn and processing sweet corn for western bean cutworm egg masses and small larvae should begin … Continue reading

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