- Author: Lynn M. Sosnoskie
- Author: Stanley Culpepper
Published on: May 3, 2013
![Extension agent in Palmer amaranth](https://ucanr.edu/blogs/UCDWeedScience/blogfiles/16050small.png)
Extension agent in Palmer amaranth
Glyphosate-resistant (GR) Palmer amaranth is, currently, the most significant weedy pest of cotton grown in the SE US. In order to reduce population size, maximize herbicide efficacy and prevent the development of further resistances, cotton growers must consider using additional mechanical (i.e. tillage) and cultural (i.e. cover crops) weed management strategies. Small plot experiments conducted in Georgia between 2008 and 2010 showed that the use of deep-tillage plus a heavy rye cover crop, when paired with a herbicide program consisting of both residual and POST-applied...
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