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Clopyralid (3,6-dichloro-2-pyridinecarboxylic acid) is a selective herbicide used for control of broadleaf weeds, especially thistles and clovers.Clopyralid is in the picolinic acid family of herbicides, which also includes aminopyralid, picloram, triclopyr, and several less common herbicides.
Though asserted in some literature, creeping thistle does not form rhizomes. [20] Root buds form adventitiously on the thickened roots of creeping thistle, and give rise to new shoots. Shoots can also arise from the lateral buds on the underground portion of regular shoots, particularly if the shoots are cut off through mowing or when stem ...
Tipton's weed, Klamath weed Hypericum perforatum: Photosensitization, [3] [15] GI disturbances, "allergic reactions, fatigue, dizziness, confusion, dry mouth" [15] Valerian: garden valerian, garden heliotrope, all-heal Valeriana officinalis "drowsiness, GI upset, headache, palpitations, insomnia", [3] oversedation, overstimulation [16] Vasambu ...
There were also effects on the lungs, liver, kidney, and thyroid glands of male and female rats. The LD50 , or 50% lethal dose of DCPA, is greater than 10,000 mg/kg in beagle dogs. In humans, it seems that DCPA is poorly absorbed, as 6% of a 25-mg dose and 12% of a 50-mg dose were absorbed according to metabolites in urine.
Spear thistle is designated an "injurious weed" under the UK Weeds Act 1959, [19] and a noxious weed in Australia [18] [20] [21] and in nine US states. [22] Spread is only by seed, not by root fragments as in the related creeping thistle C. arvense. It is best cleared from land by hoeing and deep cutting of the taproot before seeds mature ...
Dithiopyr is a preemergent herbicide for crabgrass control in turf and ornamental grasses. It is effective on 45 grassy and broadleaf weeds. [1] Dithiopyr inhibits root growth of susceptible weeds as well as turf grass and thus should be used only on established turf with a well-developed root system.
Many plants commonly used as food possess toxic parts, are toxic unless processed, or are toxic at certain stages of their lives. Some only pose a serious threat to certain animals (such as cats, dogs, or livestock) or certain types of people (such as infants, the elderly, or the immunocompromised).
MCPB, 2,4-MCPB, 4-(4-chloro-o-tolyloxy)butyric acid (), or 4-(4-chloro-2-methylphenoxy)butanoic acid is a phenoxybutyric herbicide.In the United States it is registered for use on pea crops before flowering, for post-emergence control of broadleaf annual and perennial weeds including Canadian thistle, buttercup, mustard, purslane, ragweed, common lambsquarters, pigweed, smartweed, sowthistle ...