Dig up the rhizomes, being careful to remove all sections of it to prevent new weeds from growing. Even if you can't identify ragweed, you've probably heard it referenced when talking about spring ...

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.

The majority of weed samples we have collected over the past two years have been giant ragweed and waterhemp. In 2009, we observed an increase in the number of fields with giant ragweed that ...

However, when you experience allergy season depends on the particular pollens you’re allergic to, as well as your location. ...

Learn about the three main weed classifications—annual, biennial, and perennial—and how they impact garden management.

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 commonly used expression ‘driver weeds’ is a reference to highly problematic weed species which dictate or drive growers’ herbicide selection and management decisions annually.

The estimated time to reduce the weed seed bank by 50 percent is 12 years for common lambsquarters and 3 years for common waterhemp. Giant ragweed populations tend to decline more rapidly ...

Monash researchers have made a breakthrough discovery about the invasion success of plants, with the revelation that large-scale genetic changes are the common ... a noxious weed that crowds ...

The Cross Canadian Ragweed comeback is expanding to Texas. The Red Dirt pioneers, along with co-headliners Turnpike Troubadours, are bringing their Boys From Oklahoma showcase to McLane Stadium in ...