Widespread adoption of glyphosate-resistant crops and concomitant reliance on glyphosate
for weed control set an unprecedented stage for the evolution of herbicide-resistant weeds …

Weed management is one of the prime concerns for sustainable crop production. Conyza
bonariensis and Conyza canadensis are two of the most problematic, noxious, invasive and …

The herbicide paraquat belongs to the group of the bipyridylium salts. In California, it is used
primarily for control of broad-leaved grasses in fruit orchards and plantations, as a cotton …

Glyphosate and 2, 4-D have been commonly used for control of common and giant ragweed
before planting of corn and soybean in the midwestern United States. Because these …

BACKGROUND Overreliance on glyphosate as a single tool for weed management in
agricultural systems in Brazil has selected glyphosate‐resistant populations of tall windmill …

The repeated use of herbicides can lead to the selection of multiple resistance weeds. Some
populations of Conyza bonariensis occurring in olive groves from southern Spain have …

In Brazil, some populations of Conyza bonariensis and C. canadensis are glyphosate
resistant and there are populations of C. sumatrensis (Sumatran fleabane) presenting …

Two putative glyphosate-resistant (GR) Russian-thistle accessions were collected from
fallow fields (wheat-fallow rotation): one from Choteau County, MT (MT-R), and a second …

The use of herbicides is widespread in weed management, and adjuvants are added to the
spray solution to improve the effectiveness of applications. The goal was to evaluate the …

Glyphosate, currently the world's most extensively used herbicide was on the market for
more than 20 years since its introduction in 1975 without reported evolution of resistant …