Researchers at Nanjing Agricultural University Release New Data on Agricultural Science.

According to the authors of recent research published in the journal Agricultural Sciences in China, "Horseweed (Conyza canadensis), an invasive alien weed, is one of the main weeds in orchards in China. Although glyphosate has been used for control of horseweed and many other weeds in orchards for more than 25 years in China, a case of glyphosate-resistant horseweed has not been identified in orchard in China so far despite glyphosate-resistant horseweed cases have been reported in some other countries."

"Seeds of 25 horseweed populations were collected from different orchards with different glyphosate application history. Potted seedlings with 11-13-leaf growth stage were …