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 ...

Among garden weeds, the Canada Thistle (cirsium arvense) is a common perennial weed and what I call a “super weed.” It has a dual system of reproduction, by roots and flowers that produce seeds. Thus, ...

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 is a preview. Log in through your library . Abstract Canada thistle is one of the most troublesome and difficult weed species to control in established alfalfa grown for seed production. Current ...

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.

Management of perennial broadleaf weeds such as dandelion, Canada thistle, horsenettle, hemp dogbane, milkweed, smooth ...

DEAR GARDEN COACH: Oxalis and thistles have taken over my yard. Please tell me how to eradicate them for good. The overabundance of them is overwhelming me. Tina Morrill, San Jose DEAR TINA: Oxalis is ...

Plumeless thistle (Carduus acanthoides) is a winter annual or biennial that forms dense monocultures outcompeting other plants for light, nutrients and moisture. Listed as a noxious weed in Idaho, ...

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 ...