Author Archives: ipcm-edit

Heaving in Alfalfa Fields

Heaving in Alfalfa Fields Dan Undersander, Forage Agronomy Extension Specialist Heaving is problem in some alfalfa stands each year in the Midwest. Heaving occurs on heavy soils that have high moisture contents. Repeated freezing and thawing causes soil expansion and … Continue reading

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Soybean Aphid Scanty on Buckthorn in the Upper Midwest

Soybean Aphid Scanty on Buckthorn in the Upper Midwest Eileen Cullen, Extension Entomologist Data from the North Central Regional Soybean Aphid Suction Trap Network sheds light each year on 1) abundance of soybean aphid migrating from soybean to its overwintering … Continue reading

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Corn Hybrid Relative Maturity Switch Dates for 2011

Corn Hybrid Relative Maturity Switch Dates for 2011 Joe Lauer, Corn Agronomist With the cool wet spring we have had so far in 2011, planting corn in northeast Wisconsin has been delayed. In general, if all corn In Wisconsin could be … Continue reading

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Early Season Insect Calendar: Seed Corn Maggot

Early Season Insect Calendar: Seed Corn Maggot Eileen Cullen, Extension Entomologist Please see last week’s Wisconsin Crop Manager Vol. 18(8) for a black cutworm scouting alert in corn from emergence through V5 stage. Remember to scout Bt corn hybrids for … Continue reading

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Longevity of S Availability from Large Gypsum Applications

Longevity of S Availability from Large Gypsum Applications Dick Wolkowski, Extension Soil Scientist The recent interest in the use of FGD gypsum as a soil amendment has resulted in some questions about the longevity of the S supply to crops … Continue reading

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Black Cutworm Damage Potential for Corn

Black Cutworm Damage Potential for Corn Eileen Cullen, Extension Entomologist Corn planting and weed control delayed by wet field conditions coupled with a major black cutworm migration make black cutworm damage a likely event later this month. The WIDATCP Wisconsin … Continue reading

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Use automatic steering to avoid mowing the same ground twice

Use automatic steering to avoid mowing the same ground twice Matthew Digman, Research Agricultural Engineer, Dairy Forage Research Center (USDA-ARS)  and T. J. Shinners, Summer Engineering Intern, University of Wisconsin – Madison               We … Continue reading

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Selecting a N fertilizer rate when corn is $7/bu

Selecting a N fertilizer rate when corn is $7/bu Carrie Laboski, Extension Soil Scientist, Dept. of Soil Science, Univ. of Wisconsin-Madison With the current price of corn in the $7/bu range, growers and agronomists have been asking if they should … Continue reading

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Influence of crop rotation and nitrogen fertilizer on oat yield

Influence of crop rotation and nitrogen fertilizer on oat yield Matt Ruark, Dept. of Soil Science, Tim Wood, Lancaster Agricultural Research Station Current UWEX nitrogen (N) application guidelines for oats are 40 lb/ac for soils with 2 to 10% organic … Continue reading

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Photosensitization of Sheep and Goats from Switchgrass hay

Photosensitization of Sheep and Goats from Switchgrass hay Dan Undersander, Extension Forage Agronomist I have had a couple reports of photosensitization of sheep from feeding switchgrass hay. After feeding the hay a week or two, the sheep started exhibiting extreme sensitivity … Continue reading

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