Second generation anti-coagulant Klerat Brodifacoum: its potential for agricultural and household rodent management
2006
Saavedra, N.T. | Suiza, R.C., Syngenta Philippines, Makati, Metro Manila (Philippines)
Klerat (Brodifacoum), a registered second generation anti-coagulant rodenticide, was evaluated for the control of rats and mice. It was found that doses of 2.4 grams and 0.4 grams are sufficient to kill rats and mice, respectively. Since a rat eats about 5 grams and mouse consumes about 0.5 gram of food per feeding, Brodifacoum can deliver a lethal dose with just a single feeding. It was also found that Brodifacoum gave 100 percent control of the test population in a little over two weeks after baiting and with the least amount of baits consumed among the tested rodenticides. Rats and mice die in 4 to 7 days from consumption of the lethal dose, thus, preventing them from associating the bait with death. This prevents the occurrence of 'bait shyness' which is common when using acute poisons. This makes Brodifacoum suitable for sustained bating programs in both agricultural and urban rodent management. Brodifacuom also contains 10 ppm of 'Bitrex', the most bitter compound currently known to man. Rodents cannot detect it even up to 50 ppm. Test showed that at 10 ppm it is already unpalatable to humans. It is added to the bait to minimize ingestion of a significant amount of the material by accident.
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