marestail


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marestail

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They have also begun studies on a strain of Xanthomonas bacteria found to infect the leaves of common cocklebur, marestail (or horseweed), and other herbicide-resistant threats to southern crops and potential targets for bioherbicide use.
Overall, weeding is a fine balance between spraying perennials (such as marestail, rosebay willowherb, docks), hoeing annual weeds and flame-throwing the gravel.
html (emphasis added) (adding that, even after the five-year mark, the rapid rise of glysophate-resistant marestail triggered, in 2004, "an estimated 10 percent increase in the average pounds of herbicides applied per acre").
Benbrook has no doubt that average glyphosate application rates per acre of HT soybeans continued rising in 2003 due to the spread of glyphosate-tolerant marestail (horseweed), shifts in composition of weed communities toward species not as sensitive to glyphosate, early-stage resistance in some major weeds, and substantial price reductions and volume-based marketing incentives from competing manufacturers of glyphosate-based herbicides.