When it comes to common weeds, few are as problematic as Canada thistle. This plant has a tenacious and fast-growing root system. A single seed is all it takes for an entire patch to spring up and ...

and lance-leafed thistle, is a biennial weed found in almost every state and territory in the USA, including Alaska and Hawaii. Originally native to West Asia, parts of Europe, and North Africa ...

“The rapidity with which the Russian thistle has spread, both in infesting new territory and in thoroughly covering that already infested, far exceeds that of any weed known in America,” Dewey ...

Saturday after the two huge L.A. fires broke out. The city was thick with haze and smoke; ash was twirling in the air, and ...

Sow thistle is an annual weed that can establish at any time of the year. It is also known as puha, and is eaten by some people as a vegetable. Although known as a food favoured by some Māori people ...

Californian thistle is also well-adapted to growing in situations such as asparagus crops and in orchards where residual herbicides are used. Residual herbicides remain active in the soil for several ...

Canada thistle is a colony-forming perennial from deep and extensive ... but still maintain itself. This aggressive weed is difficult to control; for example, breaking up the roots by plowing only ...

This is especially effective on weeds with short dormancy periods, such as kochia, goat’s beard, hare’s ear mustard, Indian mustard, Russian thistle, cow cockle, green foxtail, downy brome, wild ...