is the most challenging weed for me farming organically," says Fernholz.
thistle flowers in general, the Canada thistle
, also known as the way
Examples of weeds with the potential for allelopathy include Canada thistle
, quack grass, and wild oats.
Renecker and Hudson (1992) reported moose consuming small amounts of (presumably dead) Canada thistle
(Circium canadensis) in Jan.
Weeds such as quackgrass and Canada thistle
will grow through several inches of mulch and generally need to be removed by hand.
5:20 Brent Pringle (UND): USING HIGH SPATIAL RESOLUTION SATELLITE IMAGERY TO MAP LEAFY SPURGE (EUPHORBIA ESULA) AND CANADA THISTLE
(CIRSIUM ARVENSE) IN THE NORTH UNIT OF THEODORE ROOSEVELT NATIONAL PARK
MESSAGE: As the foundation herbicide for spring wheat, nothing combines value plus the best control of kochia, Canada thistle
and wild buckwheat like new WideMatch.
The key broadleaf weeds controlled include puncturevine, Canada thistle
, Equisetum, perennial pepper-weed, whitetop, yellow starthistle, turkey mullein, and marestail.
The Canada Thistle
(Cirsium arvense) is a common weed found in the USA and Canada where it causes many agriculture problems.
Severe infestations of Canada thistle
[Cirsium arvense (L.) Scop.], a competitive perennial broadleaf weed, limit birdsfoot trefoil seed production.
ARS researchers Jay Radhakrishnan, John Teasdale and Ben Coffman in Beltsville, Md., tested vinegar on major weeds -- common lamb's-quarters, giant foxtail, velvetleaf, smooth pigweed and Canada thistle
-- in greenhouse and field studies.
The presence of legumes [primarily alfalfa (Medicago sativa L)] increased in response to haying, whereas, abundance of noxious weeds [chiefly Canada thistle
(Cirsium arvense (L) Scop.)] diminished.
They are studying the potential use of a mite species as a biological agent to control Canada thistle
(Cirsium arvense), a major invasive weed pest in U.S.
Fields were selected based on similarity of dominant vegetation species that included common ragweed (Ambrosia artemisiifolia), Canada thistle
(Cirsium vulgare), goldenrod spp.
Several gardeners reported getting control of Canada thistle
by chopping down the plant before it went to seed and then pouting vinegar, salt, or a mixture of vinegar and salt water down the stem area.