Add Yahoo as a preferred source to see more of our stories on Google. Each Canada thistle plant can produce 1,500 seeds in a single season. Q: We recently moved to a new home and have inherited flower ...

In greenhouse studies, atrazine (2-chloro-4-(ethylamino)-6-(isopropylamino)-s-triazine killed Canada thistle [Cirsium arvense (L.) Scop.] when applied as preemergence or postemergence treatments.

Editor’s note: Throughout the growing season, Mike Hogan, OSU Extension educator for Agriculture and Natural Resources in Franklin County, will answer gardening and home landscape questions submitted ...

This has been a phenomenal year for germination of noxious weeds. Scotch thistle, for instance. Scotch thistle grows up to 13 feet tall. Cutting the root 2 inches below ground will kill that root and ...

BOZEMAN – This article highlights the evolution of glyphosate (Roundup, RT3, and other generics)-resistant Russian thistle in Montana. Russian thistle ( Salsola tragus L.), a native of southeastern ...

Fall Weed Control: Musk thistle: It’s not too late to do something. The issue: Musk or nodding thistle is a non-native biennial thistle that is continuing to spread like wildfire throughout Idaho.

A new study shows that working smarter, not harder, can lead to better control of invasive weeds. And the first step is to clearly define your weed control objectives. A new study in the journal ...