An efficacy test of cholecalciferol plus diphacinone rodenticide baits for California voles (Microtus californicusPeale) to replace ineffective chlorophacinone baits

Autor: Gary W. Witmer, Rachael S. Moulton, Roger A. Baldwin
Rok vydání: 2014
Předmět:
Zdroj: International Journal of Pest Management. 60:275-278
ISSN: 1366-5863
0967-0874
DOI: 10.1080/09670874.2014.969361
Popis: California voles cause damage to pastures and rangelands, orchards and nurseries, and a wide variety of field crops, including artichokes. The anticoagulant rodenticides (chlorophacinone and diphacinone) typically used for voles are becoming less effective in controlling their populations. Consequently, there is a need to identify new rodenticides that will have a high efficacy on California voles so that agricultural production losses to rodents can be substantially reduced. We tested a new formulation containing two active ingredients (cholecalciferol and diphacinone) as a control method for California voles. Both a pelleted bait and an oil-coated artichoke bract bait were very palatable and efficacious against wild-caught, captive California voles. Efficacy levels of 70%80% were achieved in the two-choice feeding trials. Additionally, the days-to-death (56 days) were less than the time-to-death with anticoagulant only baits. We recommend that a field efficacy study be conducted with cholecalciferol plus diphacinone bait formulations to determine their field performance in the reduction of agricultural damage by California voles.
Databáze: OpenAIRE
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