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 ...

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 ...

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, ...

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 ...

In 1998, musk thistle was put on the noxious weed list for all counties in Oklahoma. The law states, “It shall be the duty of every landowner in each county to treat, control or eradicate all Canada, ...