The county’s Vector Control helicopter will be hovering over
Santee on Wednesday, May 9 to deposit an anti-mosquito larvicide in vegetation surrounding ponds in the
San Diego River and at Sycamore Creek.
The small pellets to be dropped contain two types of bacteria that target mosquito larvae, preventing them from maturing into biting adult insects.
County officials said the VectoMax larvicide affects only mosquito larvae and is harmless to humans, wildlife and vegetation.
Aerial applications of the larvicide are done about ever four weeks between May and September at more than 40 locations countywide with stagnant or slow-moving water favored by mosquitoes.