By WCM Staff on 3/27/2008 4:59:00 PM

Wisconsin Crop Manager, Volume 15 Number 4, March 27, 2008 compiled issue for print or download in PDF format.

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By WCM Staff on 3/27/2008 2:35 PM

This season brings several new corn and soybean herbicides to the market. While some of these herbicides are marketed specifically for use in herbicide-resistant crops, others can also be used to reduce the risk of early-season weed competition. All but one of these herbicides contain active ingredients that have been previously marketed.

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By WCM Staff on 3/27/2008 2:25 PM

In addition to the wheat herbicides reviewed in the last issue, Orion (Syngenta) has recently received its registration. Orion is a postemergence broadleaf herbicide for wheat, barley and oats and contains the ingredients florasulam and MCPA.

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By WCM Staff on 3/25/2008 11:55 AM

In the past few weeks, there has been much discussion among Extension Specialists in the U.S. regarding recommendations for early and reduced rate applications of foliar fungicides for wheat. Based on results around the U.S., we recommend that growers actively scout their fields for the presence of wheat diseases before making a foliar fungicide decision.

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By WCM Staff on 3/25/2008 10:35 AM

An article by Carrie Laboski, Dept. of Soil Science, UW-Madison

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By WCM Staff on 3/20/2008 10:37 AM

Near record wheat commodity prices coupled with increasing input costs for corn and soybean prompted many Wisconsin growers to increase their wheat acres in 2007. As the ice and snow begins to dissipate over the next few weeks it is critical that we accurately assess the winter injury to the wheat crop and make the appropriate management decisions regarding the wheat stand, nitrogen timing, and yield potential.

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By WCM Staff on 3/14/2008 2:43 PM

EPA issued final orders in 2006 cancelling the registrations of all products containing the pesticide lindane, including those products used as a seed treatment on grain. Although end-use products containing lindane no longer can enter the channels of trade, end users (i.e., co-ops, applicators, etc.) have until October 1, 2009 to use existing products already in the channels of trade.

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By WCM Staff on 3/13/2008 4:17:00 PM

Wisconsin Crop Manager, Volume 15 Number 3, March 13, 2008 compiled issue for print or download.

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By WCM Staff on 3/13/2008 2:47 PM

Soil samplers are needed throughout Wisconsin this spring to help answer these questions. They are requested to take part in a project to measure the extent of nutrient stratification in common agricultural soils under different tillage systems. The primary objective of the study is to assess cropland P stratification by soil group and by tillage system for the Wisconsin P Index, but information on potassium stratification will also be collected.

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By WCM Staff on 3/13/2008 2:42 PM

New regulations require fields enrolled in the conservation reserve program (CRP) that are sod-bound with grasses be managed periodically to reduce this dominance and increase the diversity of desirable broadleaf plants.

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By WCM Staff on 3/13/2008 2:25 PM

Postemergence herbicides are very useful for weed management in sweet corn, but caution may be needed when certain herbicides are applied to sensitive hybrids. Over the past 3 years, we have conducted many sweet corn tolerance trials to postemergence herbicides.

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By WCM Staff on 3/13/2008 2:15 PM

Although the snow has yet to melt, it will soon and winter wheat should be off to a quick start. One nice advantage with winter wheat is weed management. Winter wheat is very competitive with weeds and many fields frequently do not need a herbicide application for weed control in Wisconsin.

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By WCM Staff on 3/13/2008 2:14 PM

Just a quick reminder of the 2008 IPM Field Scout Training Class which is to held on the UW River Falls campus March 19-20.

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By WCM Staff on 3/13/2008 1:39 PM

A Section 18 label has been re-issued by the U.S. Environmental Protection Agency for use of the nonlethal bird repellent Avitec for a third year in Wisconsin. Avitec is labeled for sandhill cranes on field and sweet corn.

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