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Vector-control district: black flies are a nuisance tied to high river flows; weekly BtI treatment and public tips offered
Summary
Tristan Hallam of the San Gabriel Valley Mosquito and Vector Control District told the council that black flies breed in fast-flowing rivers, are treated weekly with Bti at the highest federal rate allowed, and urged residents to use DEET and netting and to report sightings to the district website.
Tristan Hallam, director of scientific programs for the San Gabriel Valley Mosquito and Vector Control District, briefed the Duarte City Council on Aug. 26 about rising black-fly nuisance in the Foothill area and the districts response.
The nut graf: black flies breed in fast-flowing rivers and can travel long distances; the district is applying larvicidal treatments at permitted rates, expanding surveillance and urging…
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