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Mosquito sprayers at work

Getting ready to spray BTi biological control agent onto standing water in Blackpool recently.
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Jeremy Gale (l) and Bryn Doerksen get ready to spray BTi biological control agent onto standing water in Blackpool recently.

Jeremy Gale (l) and Bryn Doerksen get ready to spray BTi biological control agent onto standing water in Blackpool recently. The two young men, both originally from Clearwater, are working for BWP Consulting on a mosquito-control contract for Thompson-Nicola Regional District.

BIi kernelsLeft: Kernels containing BTi agent are loaded into a backpack sprayer. BTi stands for Bacillus thuringiensis serovar israelensis. According to Wikipedia, it is effective against mosquitoes, fungus gnats and blackflies, while having almost no effect on other organisms.