Better alternatives to Rodenticides?

Poisons used to kill rodents have safer alternatives
"For a rodent to get a lethal dose from a first-generation rodenticide it has to eat it more than once, but that’s not a problem. Leave first-generation baits out for a week and they’re just as efficient as the second generation. What makes second-generation rodenticides so non-selective is that they kill slowly, so rodents keep eating them long after they’ve ingested a lethal dose. By the time they expire, or are about to, they contain many times the lethal dose and are therefore deadly to predators, scavengers, and pets.
Because they are weapons of mass destruction, second-generation rodenticides are the preferred tool wildlife managers use to restore native ecosystems to rat-infested islands. But the EPA has declared them too dangerous for public use and ordered them off the general market. They’re still widely available, however, because stores have huge stocks and because a recent court decision has allowed three of the largest manufacturers to defy the order.".... keep reading


  1. Helen Black found this wee study in Journal of Wildlife diseases (2017): They write of the Western Burrowing Owls that frequently occupy periurban areas, where they may be exposed to pest control agents such as brodifacoum. Necropsy findings and detected brodifacoum rodenticide levels for four Western Burrowing Owls in Lake Havasu City, Arizona, US, 2013–15. Levels detected ranged from 0.077 mg/kg to 0.497 mg/kg. Brodifacoum has recently been removed from the general consumer market, is still available for use by licensed pesticide applicators. Despite recent regulatory actions, second-generation anticoagulant pesticides continue to threaten predatory species in periurban areas.


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