Cocklebur (Xanthium strumarium) Toxic Part: Seeds and seedlings Risk: Toxic to pigs, sheep and cattle; seedlings are especially dangerous ID Tips: Rough stems with darks pots; sandpaper-like, ...

Since 1996, genetically modified herbicide-resistant (HR) crops, particularly glyphosate-resistant (GR) crops, have transformed the tactics that corn, soybean, and cotton growers use to manage weeds.