Author Archives: Roger Schmidt

Update on Waterhemp and Palmer Amaranth in Wisconsin

Waterhemp and Palmer Amaranth in Wisconsin: an update on locations and call to report new infestations. Mark Renz, UW Madison Associate Professor and Extension Specialist We have been observing the continued spread of waterhemp and Palmer amaranth in Wisconsin. These … Continue reading

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Integrated Pest Management and Soybean Aphids

Bryan Jensen, Department of Entomology and Integrated Pest Management (IPM) Program It seems like soybean aphid populations have been creeping up and I understand a few fields have been sprayed.  When we get to this time of year economical soybean aphid … Continue reading

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Bt Trait Performance Concerns

Bryan Jensen, Department of Entomology and IPM Program Perhaps not all that surprising was a phone call I recently received regarding poor performance of the Herculex RW (CRY34/35ab1) trait. Although resistance has been documented in other states it was the first … Continue reading

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To Spray or Not to Spray Fungicide on Corn for Grain or Silage?

Damon L. Smith, Extension Field Crops Pathologist, University of Wisconsin-Madison Treating field corn, for grain, with fungicide has become a common practice in the Midwest. With so many fungicide programs and formulations, and the re-emergence of yield-limiting corn diseases, like … Continue reading

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New smartphone app: Sporecaster, The Soybean White Mold Forecaster

Damon Smith, Field Crops Extension Pathologist, University of Wisconsin-Madison, Roger Schmidt, Nutrient and Pest Management Program, University of Wisconsin-Madison, Shawn Conley, Soybean Extension Agronomist, University of Wisconsin-Madison Sporecaster is a new smartphone application designed to help farmers predict the need for a … Continue reading

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Fertility Guidelines for Hemp in Wisconsin

Carrie Laboski, Professor & Extension Soil Fertility/Nutrient Management Specialist No research has been conducted on the nutritional needs of hemp grown in Wisconsin in 75 years. In order to develop nutrient application guidelines for hemp, available peer reviewed literature as … Continue reading

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Welcome UW Soil & Forage Analysis Lab director

Carrie Laboski, Professor & Extension Soil Scientist The UW Soil & Forage Analysis Lab welcomes its new lab director and extension soils specialist, Andrew Stammer. Andrew is a certified crop advisor and has a strong background in soil and plant … Continue reading

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EPA Open Comment Period for Neonicotinoid Insecticides

Bryan Jensen, UW Extension and IPM Program Most are aware that EPA is going through a registration review for the neonicotinoid (IRAC 4A) insecticides. The majority of the neonicotinoid use in Wisconsin’s field crop’s is for several formulations of seed treatments … Continue reading

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Corn Cost of Production Estimates for 2018

Dr. Joe Lauer, UW-Madison Agronomy and UWEX state corn specialist A new blog post is available on the Wisconsin Corn Agronomy website. “It is difficult to predict the economics of corn production next year. In the last blog we discussed … Continue reading

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UW-River Falls Field Scout Training Class, March 13-14

Bryan Jensen, UW Extension, IPM Program The University of Wisconsin-River Falls, UW-Extension and the Integrated Pest Management Program are co-sponsoring the IPM Field Scout Training Class which will be held March 13-14, 2018 at the UW-River Falls campus. This training … Continue reading

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