Redroot pigweed (Amaranthus retroflexus L) is a common broadleaf weed species in Manitoba, Canada Producers in this region have been reporting reduced response of this weed to common Acetolactate synthase (ALS) inhibiting herbicides
Three suspected resistant populations of redroot pigweed were…
Weed surveys of annual crops have been regularly conducted in the Prairie Provinces since the 1970’s In the 1990’s, a herbicide resistance component was added to the provincial surveys The objectives of the project were to complete the sixth set of weed surveys in the Prairie Provinces and…
In these experiments, soybean responded well to cultural weed management practices Narrowing the row spacing, maintaining adequate soybean stand densities and growing a locally more competitive variety all contributed to reducing the duration of the critical weed free period This led to…