Insecticides targeting mosquito larvae (larvicides) destroy mosquitoes before they can mature into blood-sucking adults – reducing populations before they become a problem in the first place. Larvicides have two major benefits for mosquito abatement: larvae tend to aggregate in large numbers in aquatic habitats, and the majority of larvicides tend to have little to no effect on non-target species. STPMAD most often uses larvicides in roadside ditches to control Culex quinquefasciatus, the primary vector of West Nile virus in St. Tammany Parish. Larvicides are frequently sprayed using a spray truck, but can be sprayed by hand and aerially by aircraft.
Methoprene mimics a hormone found in mosquitoes that prevents emergence of pupae into adults.
|Altosid Liquid SR-20||Altosid Liquid SDS||Altosid Liquid label|
|Altosid XR-G||Altosid XR-G SDS||Altosid XR-G Label|
|Altosid XR-B||Altosid XR-B SDS||Altosid XR-B Label|
|MetaLarv S-PT||Metalarv SDS||Metalarv Label|
Bacillus thuringiensis israelensis and Bacillus sphaericus are bacterial agents that kill mosquito larvae by binding to and rupturing the midgut lining. Spinosad is a bacterial agent that interferes with the nervous system of mosquito larvae.
|VectoBac G||VectoBac G SDS||VectoBac G Label|
|VectoBac 12 AS||Vectobac 12 AS SDS||VectoBac 12 AS Label|
|Spheratax 50G||Spheratax 50G SDS||Spheratax 50G Label|
|VectoBac WDG||VectoBac WDG SDS||VectoBac WDG Label|
|VectoBac GS||VectoBac GS SDS||VectoBac GS Label|
|VectoLex WDG||VectoLex WDG SDS||VectoLex WDG Label|
|Summit G||Summit G SDS||Summit G Label|
Surface oils form a film on the water surface. The film interrupts the mosquito larvae’s ability to breathe through their air tube.
|BVA2||BVA2 SDS||BVA2 Label|
|CocoBear||CocoBear SDS||CocoBear Label|
Aquatic herbicides are used to reduce habitat sources for two of our most problematic marsh mosquito genera, Mansonia and Coquillettidia species.
|Procella COR||Procella COR – SC SDS||Procella COR -SC Label|
|2,4-D||2,4-D – SDS||2,4-D – Label|
|Trichlopyr||Trichlopyr SDS||Trichlopyr Label|