The development of crops resistant to 2,4-D, dicamba, and glufosinate may provide new options for the management of glyphosate-resistant (GR) giant ragweed and other herbicide-resistant weeds. A ...

In previous research conducted on nonweed species, the efficacy of glyphosate was shown to be greater in unsterile soils compared to sterile soils and soil microorganisms were found to play an ...

Ragweed is a nuisance you don’t need. At least two ragweed species are native to Colorado, giant ragweed (Ambrosia trifida) and common ragweed (Ambrosia artemisiifolia). These plants are likely to be ...

Ragweeds are in the Ambrosia genus in the aster family. There are about 50 species of ragweed. Most grow in the desert areas of the American Southwest and Mexico. Some species have been spread around ...

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