Residual herbicides remain active in the soil for several months, killing weed seeds as they germinate. As the creeping root system of Californian thistle is deeper in the soil than the residual ...

Hence the move to make similar use of this closely related and much more common species. As sow thistle can grow up to 1 m tall, it can be quite a competitive weed. It gets its common name from being ...

Today the USDA Plants Database lists Russian thistle growing in every state except Florida and Alaska. The weed has also continued to thrive in its native land, spreading throughout the dry parts ...

Top tip: 'Always avoid composting any part of milk thistle,' warns Craig. Instead, he recommends bagging up the plant and sending it to landfill. 'Applying a weed-control product containing the ...

Fallow may also be used to control perennials such as Canada thistle and perennial sow-thistle ... system and prevent it from forming any food reserves. The plants will enter winter in a very weakened ...

As a result, the plant can easily spread and form dense stands in disturbed sites. See the following steps for proper bull thistle management. always wear protective clothing ... when working with ...

Landowners in southern Rio Arriba, Santa Fe and Los Alamos counties may be eligible for financial assistance to deal with invasive or noxious weeds including Scotch thistle, chicory and Russian olive.