The Village of Niles starts its tree spraying program, weather permitting, on March 26. Savatree will spray affected trees with a refined dormant oil before bud break. Overall, the Village will treat approximately 3,000 parkway trees. The spraying may take several days, and is done to help preserve the vitality of our urban forest by controlling Cottony Maple Scale and the Honeylocust Plant Bug on parkway trees.