02 Jun Weed Control Tips for 2015
Reference: http://www.agriculture.com/crops/pesticides/herbicides/weed-control-tips-f-2015_179-ar48809
Herbicide-resistant weeds are here to stay. The most recent summary indicates that 450 unique cases of herbicide resistance —encompassing 245 species — occur globally. Approximately 11 to 12 cases of unique resistance are discovered each year, says Aaron Hager, Extension weed specialist at the University of Illinois.
But there’s good news. Tools and strategies are available to help you stay ahead of those pesky weeds and halt their spread. However, the rapid planting that occurred this spring may have given weeds a head start.
“The rapid progress of corn planting sometimes can outpace the application of soil-residual herbicides,” says Hager. “In most instances these herbicides are applied within a few days after planting, but weather- and equipment-related factors can delay applications until after corn has emerged.”
If you find yourself in a similar situation, look to the label. “Labels usually indicate a maximum corn growth stage beyond which applications should not occur,” adds Hager. “These growth stages can range from as early as two leaf collars to as late as 40-inch-tall corn, so be sure to consult the respective product labels. Products containing atrazine must be applied before corn exceeds a 12-inch height, although the labels of some atrazine-containing products specify a shorter height.”
For more information on how to manage weeds this spring and summer, click the links below.
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