As part of ecological monitoring by the Ministry of Forests associated with the Gypsy moth eradication program in the spring of 1999, we investigated the responses of songbirds to a reduced food supply resulting from aerial spraying. The results of this and previous studies indicate the the use of Btk (Bacillus Thuringiensis var. kurstaki) to control Gypsy Moth populations has few, if any, short-term effects on songbird abundance.
Ovaska, Kristiina, Sopuck, Lennart. 1999. Effects of aerial spraying of the microbial insecticide Bacillus thuringienses var. kurstak (Foray 48B) on songbird abundance in Garry Oak habitats on southeastern Vancouver Island, British Columbia
Keywords: Gypsy Moth, insecticide, Garry Oak
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