One giant ragweed plant per 110 sq. ft. can reduce yields by up to 50%.² Kochia’s erect plants with stems that range from 1' to 4' high can quickly overtake soybean crops. Early-emerging kochia ...

Giant ragweed can spread rapidly, with each plant producing up to 10,300 seeds. Aside from the right way to mow if you do not want weeds to take over your yard, there are other strategies to ...

Giant ragweed is the most competitive broadleaf weed in Indiana soybean production, Johnson said. The weed can grow as tall as 15 feet if left undisturbed. Populations of three to four giant ragweed ...

Ragweed - ugh! The sound of that word makes us shudder. Ragweed is ambrosia, botanically speaking. Ambrosia is the name of a genus, or group of ...

One of the worst enemies of fall allergy sufferers is ragweed pollen. Because its pollen is so efficient in triggering severe cases of hay fever, Delena Tull described the giant ragweed as “the ...

If left unchecked, giant ragweed could choke out emerging grain crops and even develop immunity to the herbicides used to control it, Bill Johnson, professor of botany and plant pathology, and Travis ...

Q: My property has been invaded by giant weeds that can get 10 feet tall. Each of their big leaves are divided into three pointed lobes. I saw some of these last year and they produced seedy, bent-… ...

Giant ragweed can grow from 3 to 12 feet tall, and its leaves are usually divided into three to five lobes. Ragweed vs. goldenrod Goldenrod is another plant that’s part of the aster family, and ...

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 ...

While the typical ragweed plant favors hot and dry weather, the giant ragweed or "great ragweed" plants (often exceeding 10 feet tall) are not likely to be as big this year.

While walking past some goldenrod in my garden recently, a friend remarked that the plant made her sneeze. That’s a common misconception. Goldenrod won’t make you sneeze. It’s the… ...