Abstract
We evaluated the repellency of dimethyl anthranilate (DMA) and methyl anthranilate (MA) in 1- and 2-choice feeding trials with and without methiocarb (MB) on captive Canada geese (Branta canadensis) and mallards (Anas platyrhynchos) because both species cause crop damage or nuisance problems. In 2-choice trials, concentrations of 1% (g/g) DMA and MA were avoided by both species. Concentrations of 2% DMA and MA, and an economically similar concentration of MB (0.1%), reduced (P≤0.005 and P≤0.01, respectively) consumption by geese and ducks in 1-choice tests. Of the 3 materials, MA and MB were the strongest feeding deterrents and warrant further testing in the field
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