Search

Weeds Are Winning the War against Herbicide Resistance

June 29, 2018
News

"There is a “considerable chance,” the authors write, “that the evolution of pest resistance will outpace human innovation.” Addressing the situation requires a collective effort between funding agencies, regulators, farmers and others, the authors add in the review, published in Science.

ICM Conference 2018: Day 1 Round Up

November 28, 2018
News

Day 1 of the #ICM30 Conference has wrapped up and while I feel great about the sessions we were able to get to today, there were plenty out there that we were not able to get to that had just as helpful information. Make sure to get on Twitter and search for the #ICM30 to get all of the updates from various presentations today.

Here is a round-up of several sessions today in relation to Integrated Pest Management:

Alison Robertson
What’s new with corn disease?

It’s Palmer Time

August 7, 2014
News

The lack of reliable traits to distinguish Palmer amaranth and waterhemp during vegetative stages complicates efforts at stopping the spread of Palmer amaranth across the state. However, both plants should be in full reproductive mode at this time, greatly simplifying the identification of the two amaranths.

While most agronomists and weed scientists prefer to identify weeds using vegetative traits, the small bracts (modified leaves) associated with flowers of Palmer amaranth and waterhemp are the most, if not only, reliable way to differentiate the two species. Palmer amaranth has relatively large, green bracts that extend well beyond the other flower parts, whereas on waterhemp the bracts are similar in length to the tepals surrounding the seed capsule. On close examination, Palmer amaranth’s bracts on mature female plants are easily seen protruding from the plant’s seedheads without the use of a hand lens. Redroot and smooth pigweed also have large bracts; however, these species have hairy stems in contrast to the smooth stems of Palmer amaranth and waterhemp.

New course on herbicide resistance and weed management available through extension

November 13, 2018
News

Designing an effective weed management plan to combat troublesome weeds and delay the development of herbicide resistance requires careful planning. The United States Department of Agriculture estimates the cost of dealing with herbicide resistance once it occurs to be $20-60 per acre. Developing long-term weed management plans that reduce the chances of resistance developing will minimize the cost of resistance.

Pages