NOUN
- European thistle naturalized in United States and Canada where it is a pernicious weed
How To Use Canada thistle In A Sentence
- Regrowth usually occurs, but this treatment will reduce competition from Canada thistle in soybeans and help prevent production of more rootstock.
- The larvae of the painted lady butterfly - the thistle caterpillar - have been drawing a large amount of attention from anyone who has observed Canada thistle patches this spring.
- Canada thistle is identified by shallow lobed leaves with short spines on the margins and a greenish color on both sides, often lighter on the lower side.
- Occasionally, broadleaf weeds, such as Canada thistle or ragweed, become established in winter wheat fields and interfere with grain harvest or with the following soybean crop.
- Suddenly it was mid-June and noxious weeds—leafy spurge, cheatgrass, hoary cress, Canada thistle—grew everywhere. Bird Cloud
- Avoid tilling overly aggressive or invasive plants that produce root-buds, such as crabgrass, johnsongrass, bindweed or Canada thistle.
- It was also shocking to me that their habitat inspector failed to notice the noxious weeds—leafy spurge along the waterways, Canada thistle, cheatgrass and other troublesome invaders largely spread by cattle. Bird Cloud
- For me, vinegar has knocked out Canada thistle, dandelion, plantain and burdock.
- Tillage with a chisel plow, disk, or field cultivator may actually help spread perennials with creeping root systems, such as Canada thistle and hemp dogbane.
- Cheatgrass had moved in along with leafy spurge, Canada thistle and whitetop, all noxious weeds. Bird Cloud