Not surprisingly, smaller weeds are easier to control. The assumption when using a glyphosate based herbicide is that when weeds get bigger, no worries, just add more glyphosate. A recent research trial conducted by Dr. Peter Sikkema (Ridgetown Campus, University of Guelph) would suggest otherwise. ... Continue reading →

The classic explanation of "too hot, too cold, too wet, too dry, too bad" surprisingly doesn't cover all of the possible factors for why a herbicide doesn't deliver 100% satisfaction. A recent field walk illustrated why physical obstruction and weed density are two factors that are every bit as infl... Continue reading →

In wheat stubble fields to be planted with corn, there was an unacceptable level of volunteer wheat plants that had emerged after the late September glyphosate application. Volunteer wheat is worth controlling since a modest density of 20,000 plants/ac, when left uncontrolled has resulted in corn yi... Continue reading →