Finding the right products to fight weeds while following increasingly stringent restrictions can be tricky. In the first of a four-part series on crop protection, we look at new weed control products and label changes that took place in 2008. For more information on these products, go to the websites listed below the name of each company.
Rely 200 (glufosinate-ammonium) is an advanced and more concentrated formulation of the original Rely herbicide. The product received EPA registration for use in the U.S. Some chemical desiccants kill vines quickly, stopping tuber bulking prematurely. According to Bayer, Rely 200 works more slowly, mimicking the natural senescence process and allowing tubers seven to 14 days extra bulking time.
Rage (carfentrazone-ethyl) is a new option for postemergence control of grasses and broadleaf weeds. Featuring two modes of action, it is designed for full-spectrum control with both systemic and contact activity. The product is labeled for use on a variety of vegetables.
MARRONE ORGANIC INNOVATIONS
GreenMatchEX, (lemongrass oil) is now listed by the Organic Materials Review Institute (OMRI). Launched in February 2008, this effective solution to weed control problems on organic crops was formulated to meet standards of the National Organic Program and is also a registered material in the Washington State Department of Agriculture’s Organic Food Program.
PHARM SOLUTIONS INC.
The biochemical Weed Pharm is EPA registered and is said to be the first food-grade organic herbicide. Weed Pharm’s active ingredient is 200-grain, food-grade vinegar.
TESSENDERLO KERLEY, INC.
The company’s NovaSource business unit announced EPA’s approval of a supplemental label for the use of Sinbar (terbacil) on watermelon. The product can be used to control broadleaf weeds such as annual morningglory.
VALENT U.S.A. CORP.
Chateau (flumioxazin) offers growers long-lasting preemergence residual protection against 60 weeds, including groundsel, marestail, fleabane, chickweed, mustards, and more. The product is now labeled on a variety of crops including asparagus, garbanzo beans, garlic, and several nut crops.