Giant ragweed and waterhemp are currently public enemies No. 1 and 2 here. How can we get a jump on both these weeds this ...

Kochia and giant ragweed are formidable broadleaf weeds that share a variety of similarities, making them great candidates to scout for and manage in tandem. Learn how chemical and cultural practices ...

AMES, Iowa (AP) -- Over the past few years, Iowa weed populations have changed to adapt to farmers' management changes. Giant ragweed is one of the weeds that has evolved to survive current practices, ...

Purdue scientists found that soil microbes may play a role in how those weeds react to the popular herbicide glyphosate. Here, glyphosate-susceptible biotypes of giant ragweed react differently to the ...

WEST LAFAYETTE, Ind. - Farmers who spot giant ragweed in their fields should apply a post-emergent herbicide before the infestation becomes unmanageable, even if no other weeds have appeared, two ...