By WCM Staff on 1/18/2007 12:58 PM

Pesticide updates for corn and soybean. Corn - Autumn (Bayer) and Status (BASF). Soybean - Canopy (DuPont) , Authority First DF (FMC), and Sonic (Dow), and Prefix CP (Syngenta)

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By WCM Staff on 1/18/2007 12:36 PM

Extension weed scientists at Ohio State University and Purdue University have recently reported confirmed cases of glyphosate-resistant giant ragweed in Ohio and Indiana. This will certainly be important to the growers who have this problem, especially in years when they are growing soybeans in these fields. This should be a warning notice to Wisconsin soybean growers as the complaints about giant ragweed continue to increase in Wisconsin.

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By WCM Staff on 1/18/2007 11:00 AM

by Chris Boerboom, Ext. Weed Scientist "Two handy weed management tools are available on the web ..."

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By WCM Staff on 1/1/2007 3:43 PM

Horseweed (or marestail) is the most widely distributed glyphosate-resistant weed in the U.S. After the initial confirmation in Delaware in 2001, glyphosate-resistant

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By WCM Staff on 11/16/2006 5:22 PM

The annual meeting of the North Central Weed Science Society will be held at the Hyatt Regency in Milwaukee this December 12-14.

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By WCM Staff on 11/16/2006 4:54 PM

We are just finishing the 2006 Pest Management Update meetings this week. Over the past week, I have seen more corn in the fields than during any other fall when we’ve held these meetings (at least since I’ve been here). If the late harvest or other field operations kept you from attending one of these meetings, packets of the materials can be ordered.

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By WCM Staff on 10/12/2006 4:24 PM

While fall applications have many positive aspects, several questions often arise with fall applications: 1. How late into the season can I apply? 2. Does the temperature during application matter? 3. How safe is the fall application to desirable plants?

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By WCM Staff on 9/7/2006 6:51 PM

Fall is generally a better time to target dandelions than in the spring. It’s hard to get good consistent control of dandelions in the spring, whether with 2,4-D or glyphosate or other herbicides. The cool temperatures and dandelion’s early growth stage combine to keep these herbicides from providing high levels of dandelion control.

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By WCM Staff on 8/10/2006 3:35 PM

Dr. Kevin Bradley and Travis Legleiter, University of Missouri, have officially declared a population of common waterhemp in northwest Missouri as glyphosate resistant.

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By WCM Staff on 7/20/2006 6:06 PM

The Biggest Weed Contest had several interesting, tall, and large weeds entered last week at the Weed Doctor Booth at Farm Technology Days. Entries included weeds like sweet clover, poison hemlock, and giant ragweed.

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By WCM Staff on 6/21/2006 7:38 PM

Weed summary - Effect of Rainfall on Glyphosate, Suspicious Common Lambsquarters Escapes Wanted, Routine Herbicide Resistance Screening

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By WCM Staff on 6/8/2006 3:12 PM

Included in this article are four articles titled UW Pest Management Field Day – New Date, July 20, UW Weed Garden Ready for Visitors, Maximum Soybean Growth Stage for Glyphosate, and Report on the Need for AMS with Glyphosate.

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By WCM Staff on 6/1/2006 3:02 PM

I received the first call of the season about potential spray tank contamination, which is not surprising considering the major role postemergence herbicides play in many corn and soybean weed management programs. With these postemergence herbicides, remember to take extra time and care to clean your sprayers.

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By WCM Staff on 6/1/2006 2:46 PM

With all of the different glyphosate formulations with their different concentrations and prices on the market, how do you compare them?

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