College students from across the U.S. and Canada competed in the National Weed Science Contest July 20-21 at the Western Agricultural Research Station in South Charleston. The program was part of a competition to see who has bragging rights as the best student weed scientists, said Bruce Ackley, an Ohio State University Extension program specialist in weed science.
By Bill Johnson, Bryan Young, Travis Legleiter, Purdue University
Adjuvants are very useful products which are used to enhance the activity of postemergence herbicides. Numerous adjuvant products from very reliable distributors are marketed annually and provide a true value to growers seeking to optimize herbicide performance. However, since the adjuvant industry is not regulated as stringently as the pesticide industry, we occasionally run into products that create a lot of attention because of extravagant claims made by the manufacturer or distributor.
Monsanto Co, whose Roundup product is one of the world's most widely used herbicides, said on Tuesday it has arranged for an outside scientific review of a World Health Organization finding that the herbicide's key ingredient probably causes cancer.
Unrelenting rains that delayed planting of many Louisiana crops may have set the stage for a tougher-than-usual battle with weeds this year. Occasional dry spells in the spring saw farmers hurrying to get crops in the ground, only to be greeted by weed infestations thriving because of the wet weather. The herbicides that farmers applied a few months before planting to “burn down” winter weed populations failed in many cases.
A growing body of university research sheds light on just how much weeds can hurt yields for each day they go uncontrolled. University weed scientists and Extension specialists are also discovering that there might be more to weed competition and control than we typically think.