What chemical kills Canadian thistle?

Canada thistle (Cirsium arvense) is a perennial that has plagued farmers in America since European settlement, and is a Noxious Weed in Pennsylvania. It is adapted to a wide range of soil conditions, and spreads vigorously by wind- borne seeds and by way of its extensive, creeping root system.

Bull, musk, plumeless, and Scotch thistles are annual and biennial nonnative plants in the sunflower family that are considered invasive. Plumeless and Scotch thistles are listed as noxious weeds in both Arizona and New Mexico. Musk thistle and bull thistle have been listed as noxious weeds only in New Mexico.

Milk thistle is the prickly one depicted in the photos above. It may look dangerous but it is not poisonous, and, in fact, has an edible stem.

Thistles are often troublesome weeds in Minnesota gardens and lawns. The first step to proper thistle control is their identification. Biennial thistles can be controlled by digging and cultivation; this is more difficult with perennial thistles because they spread by creeping underground stems (rhizomes).

Native to southeast Europe and Asia, Canada thistle is believed to have been introduced to the United States by the 1700s as a contaminant of crop seed.

Although tumbleweed is native to the arid steppes of the Ural Mountains in Russia, it is now ubiquitous throughout the western states, growing in disturbed soils such as agricultural fields, irrigation canals and roadside shoulders and ditches.

Milestone is a systemic, post emergent herbicide designed for the management of invasive species and broad-spectrum, broadleaf weed control for roadside, rights-of-way and other non-crop vegetation control.

A noxious weed, harmful weed or injurious weed is a weed that has been designated by an agricultural authority as one that is injurious to agricultural or horticultural crops, natural habitats or ecosystems, or humans or livestock. Some noxious weeds are native.

Curtail® herbicide translocates to the roots of stubborn perennial weeds, providing outstanding control of Canada thistle. In addition, Curtail also controls many annual broadleaf species, such as wild mustard, wild buckwheat, pigweed, lambsquarters, volunteer sunflower and more.

The Weedmaster Herbicide is a selective herbicide, that provides tough, long lasting control for a broad spectrum of biennial, annual, and perennial broadleaf weeds and brush in grass forages and selected row crops.

RIFLE herbicide is a broad spectrum herbicide that provides control of tough broadleaf weeds, including ALS resistant waterhemp and kochia.

Clarity Herbicide is a water-soluble formulation intended for control and suppression of many annual, biennial, and perennial broadleaf weeds as well as woody brush and vines.

Dicamba (3,6-dichloro-2-methoxybenzoic acid) is a broad-spectrum herbicide first registered in 1967. Brand names for formulations of this herbicide include Banvel, Diablo, Oracle and Vanquish. This chemical compound is a chlorinated derivative of o-Anisic acid.

Pure dicamba is low in toxicity if breathed. If you get pure dicamba on your skin, it is low in toxicity, however skin irritation may develop. If you get dicamba in your eyes, it is moderately toxic. If dicamba is swallowed, people have reported symptoms such as vomiting, loss of appetite and muscle spasms.

In case of (dicamba) drift. Pesticide drift is a severely underreported problem in rural, agricultural communities. As a result, farmers in Southern and Midwestern states are reporting extensive and debilitating crop damage from dicamba traveling from where it’s applied to nearby fields.

Field thistle initially grows in a basal rosette form (circle of leaves originating from one growing point at the soil surface). Plants only form flowering stems after growing through at least one winter and sometimes two or three. Stems grow 2–8 inches tall and are branched on the upper third.

If anything but the Canada thistle, which spreads through roots as well as seed, goats or donkeys will take care of them, especially the biannual bull thistles. My donkeys love to eat thistle buds. The pastures my donks are allowed in have NO thistles.

Weeds, like the knap weeds and yellow star thistle. Goats eat all poisonous plants, which does not seem to bother them. They also have great diet specificity by age and gender. The older males preference for what they eat first differs from the baby goats, the nannies, and yearlings.

Thistle is the common name of a group of flowering plants characterised by leaves with sharp prickles on the margins, mostly in the family Asteraceae. Prickles occur all over the plant – on the stem and flat parts of leaves.

Alpacas are also good grazers and give you their valuable fleece. Both animals are easier to handle than cattle or sheep. They will eat nettles, thistles and docks as well as graze grass. You can stock four llamas an acre and up to eight alpacas.