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Microbicide – an agent used to kill or reduce the infectiousness of microorganisms. Miticide – a chemical to kill mites. Nemacide (also nematicide, nematocide) – a chemical to eradicate or kill nematodes. Parasiticide – a general term to describe an agent used to destroy parasites. Pediculicide – an agent that kills head lice.
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.
Cirsium horridulum, called bristly thistle, purple thistle, or yellow thistle is a North American species of plants in the tribe Cardueae within the family Asteraceae. It is an annual or biennial . [ 2 ]
The hobby is enjoyed by many, but there are some specimens best avoided. Among them is Hutchinsonite, as inhaling its dust or ingesting bits of it can be fatal.
It is best known as a controversial agent of biological pest control which has been used against noxious thistles in the genera Carduus, Cirsium, Onopordum, and Silybum. The adult weevil is black and covered in a thin black and yellowish mottled coat of hairs. It is a short-snouted beetle up to 6 millimeters in total body length.
"Nyger (thistle seed) is a favorite of finches, especially purple, house, and goldfinches," she says. You may want to put out fresh fruit if Orioles frequent your yard.
Insect euthanasia is the process of killing insects "in a way that minimizes or eliminates pain and distress." [1]: 6 It may apply to animals in the laboratory, schools, as pets, as food, or otherwise. Euthanasia of insects and other invertebrates has historically received limited attention.
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