What Is a Weed? Not everyone agrees on which plants are weeds, or what to do about them. Not all weeds need to be eradicated.

Get Instant Summarized Text (Gist) Ragweed's rapid global invasion is attributed to 37 large-scale genetic changes, including supergenes, which enable it to adapt quickly to diverse environments ...

Glyphosate-resistant biotypes of giant ragweed and common waterhemp have been confirmed within specific locations in Minnesota in 2007. Diversification with other herbicide modes of action via ...

Goldenrod (Solidago spp.), a gorgeous North American native, has long been unfairly blamed for allergies and hay fever due to its similarity to another, far more allergenic native plant.

What you see is not always what you think it is. This could be my mantra for nature. At this time of year, many people are suffering from fall allergies, often called seasonal allergies. The runny ...

Ask corn growers what their No. 1 weed problem is today, and it’s likely at least one of these three – Palmer amaranth (pigweed), waterhemp or common ragweed – will be listed in their response.