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Difethialone is an anticoagulant used as a rodenticide. [1] It is considered a second generation agent. [2] In May 2008, the EPA added restrictions on the sale of difethialone in consumer-use rodenticide products and also for exterior use by commercial applicators. [3] [4]
Pyrinuron (Pyriminil, Vacor) is a chemical compound formerly used as a rodenticide. [1] Commercial distribution was voluntarily suspended in 1979 and it is not approved by the Environmental Protection Agency for use in the United States. [2]
These methods of alternating rodenticides with different modes of action gives actual or almost 100% eradications of the rodent population in the area, if the acceptance/palatability of baits are good (i.e., rodents feed on it readily). Zinc phosphide is typically added to rodent baits in a concentration of 0.75% to 2.0%.
Coumatetralyl is commonly used with grains and other cereals as a rodent poison in conjunction with a tracking powder to monitor feeding activity in a particular area. Tracking powder also clings to fur, which allows more poison to be ingested from grooming.
Commonly used avicides include strychnine (also used as rodenticide and predacide), DRC-1339 (3-chloro-4-methylaniline hydrochloride, Starlicide) and CPTH (3-chloro-p-toluidine, the free base of Starlicide), Avitrol (4-aminopyridine) and chloralose (also used as rodenticide).
Insecticides, larvicides, rodenticides, Lethal ovitraps and repellents can be used to control vectors. For example, larvicides can be used in mosquito breeding zones; insecticides can be applied to house walls or bed nets, and use of personal repellents can reduce incidence of insect bites and thus infection.
It is a second generation (i.e., high potency) chemical in this class, used commercially as a rodenticide. It has a very high toxicity and is restricted to indoor use and sewers (in the UK). This restriction is mainly due to the increased risk to non-target species, especially due to its tendency to bio-accumulate in exposed organisms.
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