A yellow, fixed-wing aircraft will be spraying a biological product over Bartlett this month to ward off a pest that wreaks havoc on trees.
The European gypsy moth is an invasive species whose caterpillars defoliate trees, according to the Illinois Department of Agriculture.
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The aircraft will deploy Disrupt II, an environmentally friendly insect pheromone, as part of a program to keep the nuisance from establishing itself in the northeast corner of the state, officials say. It isn't a chemical that kills moths, but the product interferes with their mating by disguising a scent trail male moths uses to find females.
For details, contact the department's DeKalb office at (815) 787-5476.