VECTOBAC (Bacillus thuringiensis israelensis)
What is VECTOBAC?
VECTOBAC is a larvicide that can kill mosquitoes during the larvae stage of development. It contains a naturally occurring bacterium, Bacillus thuringiensis israelensis (Bti), that is common in soils in the United States and throughout the world. Bti has been used since the 1950's for insect control, particularly for mosquitoes, black flies, and fungus gnats.
How does VECTOBAC work?
To control mosquito larvae, VECTOBAC is placed in standing water areas where mosquitoes breed, such as storm drains (catch basins), marine and coastal areas, ponds, pool covers, large puddles, and discarded automobile covers. These bacteria damage the gut of the mosquito larvae when they eat it, causing the larvae to starve to death.
Is VECTOBAC harmful to human beings?
There are no reports of serious acute or chronic effects of VECTOBAC from inhalation, but mild skin and eye irritation have been reported from direct contact with this agent. Eating plants or drinking water exposed to VECTOBAC has not been shown to produce any ill effects in humans.
How safe is VECTOBAC for the environment?
The bacteria contained in VECTOBAC occurs naturally in the soil, and are harmless to mammals. As it is being applied, it is toxic to mosquito and blackfly larvae.
Is it safe for children and pets to play in areas that have been treated with VECTOBAC?
Mild skin and eye irritation can occur with direct contact, and it is best to keep children and pets away from areas that have been treated. However, since it will mostly be placed in storm drains and catch basins, children and pets will not have access to areas where VECTOBAC has been placed.
Am I likely to be exposed to VECTOBAC?
The larvicides are being applied in storm drains, catch basins and other areas to which the general public does not have access.
Can I use this VECTOBAC product around my home?
VECTOBAC can only be applied by licensed applicators.
What should I do if I am exposed to VECTOBAC?
If you experience eye or skin irritation as a result of exposure to a VECTOBAC, irrigate the eyes with tap water for 20 minutes and wash the skin thoroughly with soap and water. If the symptoms persist, first contact your doctor or local emergency department, then contact the New York City Poison Control Center at (212) POISONS (764-7667).
For more information on West Nile virus, call 311 or visit nyc.gov/health/wnv.
