Research was conducted in 2003 and 2004 to evaluate diflufenzopyr tank mixes for western ragweed control and injury to 'Tifton 85' bermudagrass. In 2003 at 94 DAT, picloram at 0.28 and 0.56 kg ae ha⁻¹ ...

Giant ragweed lives up to its name, towering over crops and choking out surrounding plant species. Just one ragweed plant per square meter has been shown to reduce crop yields 45 to 77 percent. Now ...

Common ragweed should be brought under control before it becomes a greater problem in sugarbeet production. But to do that farmers must apply the recommended rate of Stinger HL, said Tom Peters, North ...

WEST LAFAYETTE, Ind. — Giant ragweed soon could cast a giant shadow on the world's most popular herbicide. Researchers at Purdue and Ohio State universities have confirmed glyphosate-resistant giant ...

Why is common ragweed a problem? Common ragweed is an extreme weed — thriving in extreme environments and making a home for itself in every state, except Alaska. Common ragweed has shown resistance to ...

Ragweed is a nuisance you don’t need. At least two ragweed species are native to Colorado, giant ragweed (Ambrosia trifida) and common ragweed (Ambrosia artemisiifolia). These plants are likely to be ...

The arrival of fall brings sneezing, coughing, and itchy and watery eyes to many people. How can a change in seasons cause this much misery? The answer is seasonal allergies caused mainly from ragweed ...