Tennessee: Unfertilized Cover Crop May Reduce Nutrient Losses from Fields

Using what is known as a Soil and Water Assessment Tool (SWAT), scientists with the University of Tennessee Institute of Agriculture have modeled what...

Monsanto and DuPont Sign Dicamba Supply Agreement

Monsanto Company and DuPont today announced a multi-year dicamba supply agreement for the U.S. and Canada. Terms of the agreement were not disclosed.“This agreement...

Tennessee Cotton: Post-Direct and Hooded Mixtures for Late Season Pigweed Control

Many cotton acres are nearing the true “laying it by” application timing.  Given how Palmer amaranth just keeps coming this year these directed applications are...

Iowa Weed Management: Learning From This Year’s Triumphs, Failures

Most herbicide applications have ceased for the year, but it is not too late to evaluate how well the program worked and what changes...

Weed Scientists Say Herbicide Resistance Predates GMO Crops by 40 Years

You may think weeds resistant to herbicides are a new phenomenon linked to the overuse of glyphosate in genetically engineered crops, but according to...

Off-Target Herbicide Movement: What You See Is Not What You Get

Off-target herbicides may be invisible, but that doesn’t mean they don’t exist.Off-target herbicides damage crops, ornamentals and other vegetation in nearby fields when droplets...

Illinois Soybeans: Preharvest Intervals for Postemergence Herbicides

Almost all postemergence soybean herbicides have a preharvest interval or a soybean developmental stage beyond which applications cannot be made specified on their respective...

Weed Management: Herbicide Performance Affected by Water Temperature

A new Purdue Extension publication gives applicators of postemergence herbicides insights into the importance of mixing herbicides with water at optimum temperatures to make...

Soybeans: Dow to Bring New Active Ingredient to Burndown Applications

With the 2016 growing season nearing the halfway mark, many growers are scouting soybean fields to find unwelcome marestail plants competing with their crops....

Nebraska Winter Wheat: Post Harvest Weed Control

Good seeding conditions in fall 2016 resulted in good winter wheat stands, which in turn enabled the winter wheat to be more competitive with...

Nebraska: Protect 2017 Yields Now – Control Volunteer Winter Wheat, Other Weeds

By far, the greatest risk of losses from mite-vectored viruses occurs when there is a summer "green bridge" of volunteer wheat emerging before harvest....

Invasive And Exotic Weeds Plus Resistance – Sorting Out The Bodies And The Legalities

There is a troubling discrepancy between the large number of harmful invasive plant species and the number of invasive plant species that are actually...

Tennessee: Ryegrass Is a Big Problem, What Should You Do?

Clearly, one weed many have had trouble with in 2016 is ryegrass.  Questions began a couple months ago and continue today. They have ranged from...

Tennessee: PPO-Resistant Pigweed Escaping Sharpen Burndown

In years past when all our Palmer amaranth was PPO-susceptible, many used Verdict or Sharpen tankmixed with glyphosate and MSO as a very successful...

Tennessee: Improving Consistency of Pigweed Control with Liberty

Looks like we are fixing to have an overcast week with off and on showers.  In other words, a typical early June week for...

Tennessee: How Extensive Is Herbicide Resistant Pigweed?

We will learn a lot over the next couple of weeks on the extent of the glyphosate and PPO resistant Palmer amaranth.  In an...

Georgia Peanuts: 3 Herbicide Tips and Considerations

We’ve been talking more about peanut weed control this week with different field situations. One especially on making our own Storm out of Ultra...

Minnesota: Giant Ragweed Demands Your Attention

Late frosts across southeast Minnesota may have slowed down corn and soybean development this spring, but the weather did not delay the rate of weed growth.The current...

Pennsylvania: Pigweed Seedling ID – Know Your Enemy

This is the time of year to try to correctly identify and manage problematic pigweeds in your fields. Here are some key distinguishing features...

California: Herbicide Resistant Horseweed Management Options

Researchers have now confirmed that six glyphosate-resistant weed species have been identified in California. Four have been known to exist for some time; they...