Agweb Category Id
641

Pesticides on the Defense

EPA reviews put popular chemicals under the magnifying glass

Every year, dozens of active ingredients in fungicides, herbicides and insecticides undergo regulatory review and are at risk of being pulled off the market. The Environmental Protection Agency (EPA) reviews each registered pesticide at least every 15 years to ensure it still meets the most up-to-date science available. Three common active ingredients planted on millions of acres—pyrethroids, chlorpyrifos and atrazine—are currently under, have recently emerged from review or will be entering the process soon.

Chasing Waterhemp, the Bell Cow of Weed Resistance

Aaron Hager is standing in a resistant waterhemp hot zone. The soybean rows surrounding him are a blanket of five-way herbicide resistance: atrazine, ALS inhibitors, PPO inhibitors, HPPD inhibitors and 2,4-D. The waterhemp population’s resistance to 2,4-D is telltale. As Hager leafs through pages of farm records, he realizes the central Illinois field is a 2,4-D virgin and has never been sprayed with that particular broadleaf herbicide.

Differentiate Site of Action and Active Ingredient to Manage Weeds

On each herbicide label, companies specify active ingredients and sites of action alike. Note, each herbicide active ingredient falls into a specific site of action and the two are not the same classification and should not be treated as such.

“When you have resistance to one active ingredient you’ll generally have resistance to more than one in that herbicide site of action,” says Dave Johnson, DuPont Crop Protection Agronomist. “But there are some exceptions.”

Q&A On Dicamba Use

As farmers prepare for the first year of over-the-top dicamba application, questions cloud the horizon. With drift concerns at the forefront of many minds, uncertainties about stewardship and expectations bubble to the surface. University of Illinois Extension weed scientist Aaron Hager is in the weed control trenches with farmers. He, along with BASF and Monsanto address questions you might have this year.

What was the outcome of Monsanto releasing Xtend seed prior to the herbicide’s approval?

Pesticides on the Defense

EPA reviews put popular chemicals under the magnifying glass

Every year, dozens of active ingredients in fungicides, herbicides and insecticides undergo regulatory review and are at risk of being pulled off the market. The Environmental Protection Agency (EPA) reviews each registered pesticide at least every 15 years to ensure it still meets the most up-to-date science available. Three common active ingredients planted on millions of acres—pyrethroids, chlorpyrifos and atrazine—are currently under, have recently emerged from review or will be entering the process soon.

EPA Promises 'Back to Basics' Approach

In a meeting with Pennsylvania coal miners at the Harvey Mine in Sycamore, Pa., EPA administrator Scott Pruitt announced the agency’s new Back-to-Basics agenda. This agenda will refocus EPA on its intended mission, siphon off some of its current power to the states and create an environment in which jobs can grow, according to Pruitt.

Robotic Pigweed Killer Nears Farmland

What if an army of herbicide snipers in a sprayer shot weeds, but never hit crops? The technology concept enabling facial recognition on Facebook is ready for plant recognition in order to spray weeds on a dime, all in one real-time pass. Simply, the tractor never stops rolling.                

FMC Acquires Portion of DuPont Crop Protection Business

Today FMC corporation and DuPont signed an agreement to sell FMC the portion of DuPont’s crop protection business European Commission required DuPont to divest to merge with Dow Chemical Company. FMC will pay DuPont $1.2 billion for the business and DuPont will acquire FMC Health and Nutrition.

Missouri Legislature Passes Regulations for Herbicide Use

Missouri lawmakers have given final approval to a bill increasing a fine for illegally using herbicides that damage other farmers' crops.

The legislation passed the House on Thursday by a 139-18 vote after passing the Senate on Wednesday. It now goes to Gov. Eric Greitens. If it is signed, the legislation will go into effect immediately.

The bill gives the Department of Agriculture more power to fine people who damage other farmers' crops, land, or property by using herbicides not marked for the used purpose.

Dicamba: A Guide to Your Label

About two years. That’s all the time you have to prove to the Environmental Protection Agency (EPA) you and your neighbors will follow new dicamba formulation label requirements, or the agency could let its approval expire at the end of 2018. “With the possibility of spraying in June and July on lots of additional acres, remember broadleaf plants are very, very sensitive to dicamba,” says Mandy Bish, senior research specialist at the University of Missouri’s weed science program. “It only takes a small amount to injure nontarget plants.

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