Gonadotropin-Releasing Hormone (GnRH): Immunocontraceptive vaccines (GonaCon) containing GnRH are for fertility control in white-tailed deer, and wild or feral horses and burros.
Diphacinone: Diphacinone 50 Conservation is available for eradicating and controlling rodents on islands for conservation purposes. It is formulated to withstand both wet and dry climates.
Strychnine: Strychnine is a naturally occurring alkaloid obtained from the seed of Strychnos nux vomica, a small tree native to the Asia-Pacific region. In the past, strychnine was registered to control rodents, depredating birds, and mammals such as skunks and coyotes. Above-ground uses were canceled in 1988. It remains registered for below-ground use to control damage caused by pocket gophers.
Zinc Phosphide: Zinc phosphide is used in rodenticide baits to control a variety of rodent species including rats, mice, voles, ground squirrels and prairie dogs. Zinc phosphide products registered by APHIS cannot be used to control rodents in and around the home.
Carbon and Sodium Nitrate (Gas Cartridge): Gas cartridges are incendiary devices designed to give off carbon monoxide when ignited. They are used to fumigate burrows of certain rodents and other mammals.
Methiocarb: Methiocarb is one of the most effective avian repellents known. APHIS recently registered methiocarb as a deterrent for ravens that destroy eggs of federally designated threatened or endangered species. Eggs similar in appearance to those of the species to be protected are treated with methiocarb. Upon ingestion, the raven becomes sick and develops an aversion to consuming similar-looking eggs.
Corn Oil: Oil is applied to eggs during the nesting season to prevent hatching. Because nests are not destroyed and eggs are not removed, nesting birds are encouraged to continue incubation, often well beyond the normal time for hatching. APHIS recommends using corn oil as an egg-oiling agent. This substance is a minimum risk pesticide exempt from EPA registration requirements. Tech Note
Sodium Lauryl Sulfate: Sodium Lauryl Sulfate can be used as a wetting agent to control blackbirds and starlings in roosts. This substance is a minimum risk pesticide and exempt from EPA registration requirements. Tech Note
Compound 1080 (Sodium Fluoroacetate): Compound 1080 is a naturally-occurring organic fluorine compound extracted from the West African plant "ratbane" (Dichapetalum toxicarium). In the past, Compound 1080 was registered for controlling canids, commensal rodents, and field rodents. Currently its single registration is for use in the livestock protection collar (LPC) for controlling coyotes preying on sheep and goats. The LPC is a small rubber collar, worn by sheep or goats, which contains two small reservoirs of the toxin. It is selective for individual problem animals, since it is only administered when the coyote punctures the bladder during the act of biting the throat of the collared animal.
Cinnamon oil, Clove Oil, and Eugenol: Three compounds have proven to be effective snake repellents and irritants to snakes when sprayed directly on the animal: cinnamon oil, clove oil, and eugenol. These substances are minimum risk pesticides and exempt from EPA registration requirements. This Tech Note describes techniques to use these materials as snake repellents. Tech Note
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