Evolution of resistance to HPPD-inhibiting herbicides in a wild radish population via enhanced herbicide metabolism

Herbicides that inhibit HPPD have become very important.  In North America, corn-selective HPPD herbicides have long been used and cases of HPPD herbicide-resistant weeds reported.  The first reported North American cases of HPPD herbicide-resistant Amaranthus weeds were cross-resistance selected by earlier-used herbicides that endow cross-resistance to HPPD herbicides (with more-recent reports being resistance evolution from direct HPPD herbicide selection). In wheat-dominated Australian cropping, HPPD herbicides have been in use for about a decade. In this paper, the first case of resistance in Australia to HPPD herbicides is reported.  However, this HPPD resistance did not occur from HPPD herbicide selection but … Continue reading Evolution of resistance to HPPD-inhibiting herbicides in a wild radish population via enhanced herbicide metabolism