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 ...

The common ragweed plant (Ambrosia artemisiifolia) has spread rapidly in Europe and has intensified the pollen season for many allergy sufferers. Now the plant has arrived in Norway. Common ragweed ...

Some may call it a pothole. Some might say it's a sinkhole. Drivers may confuse it with a roundabout. Regardless, you can't miss it. A west Jackson pothole has a 6-foot-tall ragweed plant growing out ...

Outdoor Elements is available to stream on pbs.org and the free PBS App, available on iPhone, Apple TV, Android TV, Android smartphones, Amazon Fire TV, Amazon Fire Tablet, Roku, Samsung Smart TV, and ...

From left: Felipe Faleco, University of Wisconsin-Madison, hands a bag of PPO-resistant giant ragweed seeds to Pat Tranel, University of Illinois Urbana-Champaign. The team identified the first cases ...

When giant ragweed takes hold in a crop field, the towering weed reduces yield and sends plumes of its famously allergy-inducing pollen into the air. There are few tools available to thwart the menace ...