Pesticide Summary - Napa County Mosquito Abatement District

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SUMMARY OF PESTICIDES

Common Name	Trade Name	Manufacturer	General Use(s)	Label Application Rate(s)	Oral LD50 (rats)	Dermal LD50 (rabbits)
Allethrin	Wasp Freeze	Whitmore Micro-Gen	Pesticide for control of yellowjackets and nests, some paper wasps	1-2 oz	>1320 mg/kg	>2500 mg/kg
Bacillus sphaericus (Bs)	Vectolex CG	Valent Bio Sciences	Aquatic pesticide for control of larval mosquitoes	5-20 lbs/acre	>5000 mg/kg	>2000 mg/kg
Bacillus sphaericus (Bs)	Vectolex WDG	Valent Bio Sciences	Aquatic pesticide for control of larval mosquitoes	1/2-1 1/2 lbs/acre	>5050 mg/kg	>5050 mg/kg
Bacillus sphaericus (Bs)	Vectolex WSP	Valent Bio Sciences	Aquatic pesticide for control of larval mosquitoes	1 pouch/50 sq. ft.	>5000 mg/kg	>2000 mg/kg
Bacillus thuringiensis var. israelensis (Bti)	Teknar HP-D	CERTIS	Aquatic pesticide for control of larval mosquitoes	1/2-1 pt/acre	>5000 mg/kg	>2000 mg/kg
Bacillus thuringiensis var. israelensis (Bti)	Vectobac 12AS	Valent Bio Sciences	Aquatic pesticide for control of larval mosquitoes	1/2-2 pts/acre	>5000 mg/kg	>5000 mg/kg
Bacillus thuringiensis var. israelensis (Bti)	Vectobac G	Valent Bio Sciences	Aquatic pesticide for control of larval mosquitoes	2.5-20 lbs/acre	>5000 mg/kg	>5000 mg/kg
Bacillus thuringiensis var. israelensis (Bti)	Vectobac TP	Valent Bio Sciences	Aquatic pesticide for control of larval mosquitoes	0.25 lb-0.86 lb/acre	>2670 mg/kg	>6280 mg/kg
Golden Bear 1111	Mosquito Larvicide GB 1111	Clarke Mosquito Control	Aquatic pesticide for control of pupal mosquitoes	3-5 gals/acre	no data available	no data available
Methoprene	Altosid Liquid Larvicide	Wellmark International	Aquatic pesticide for control of larval mosquitoes	2-4 oz/acre	>34,000 mg/kg	>2000 mg/kg
Methoprene	Altosid Pellets	Wellmark International	Aquatic pesticide for control of larval mosquitoes	2.5-10 lbs/acre	>34,000 mg/kg	>2000 mg/kg
Methoprene	Altosid 30 Day Briquets	Wellmark International	Aquatic pesticide for control of larval mosquitoes	1 briquet/10 cu. ft. or 1 briquet/300 gal	>34,600 mg/kg	>3038 mg/kg
Pyrethrin	Pyrenone 25-5, Pyrenone 25-5	Aventis Environmental Science, Bayer	Pesticide for control of adult mosquitoes	Maximum 0.87 oz. per acre	>5000 mg/kg	>5000 mg/kg
Pyrethrin	Drione, Drione	Aventis Environmental Science, Bayer	Pesticide for control of yellowjacket nests	1 oz/nest	>5000 mg/kg	>2000 mg/kg
Note: Oral and Dermal LD50 data was taken from Manufacturers' Material Safety Data Sheets.

The pesticides we use are designed to be target specific and cause the least environmental disruption possible when used at the label rates dictated by State and Federal law. For more information you can see our General Information on Pesticides page or go to the following links: Environmental Protection Agency (EPA), Extoxnet, California Department of Pesticide Regulation, Pesticide Action Network.

NAPA COUNTY MOSQUITO ABATEMENT DISTRICT

P.O. Box 10053 ~ American Canyon, CA 94503 ~ 707-553-9610

Eva Carrender Webmaster; Page last updated 03/28/2004 08:07 PM