US Environmental Protection Agency
Office of Pesticide Programs
Fact Sheet
Bacillus sphaericus 2362, serotype H5a5b, strain ABTS1743
(PC Code 119803)
Summary text
This pesticide active ingredient is a naturally occurring bacterium that is found in the United
States and throughout the world. It kills mosquito larvae when the larvae ingest the bacterial
spores in moist or wet areas such as lakes, coasts, streams, swamps, and drainage ditches.
I.	Description of the Active Ingredient
Bacillus sphaericus 2362, serotype H5a5b was isolated in 1981 form an adult blackfly in
Nigeria and subsequently obtained in the United States. The Bacillus sphaericus 2362,
serotype H5a5b first registered in 1991 was subsequently given the pesticide active
ingredient designation Bacillus sphaericus 2362, serotype H5a5b, strain ABTS 1743.
Spores of this bacterium contain a protein that damages and paralyzes the gut of mosquito
larvae that ingest the spores, thus starving the larvae.
II.	Use Sites, Target Pests, and Application Methods
Use Sites: Habitats where mosquitoes live and lay eggs, such as storm water and drainage
systems, marine and coastal areas, freshwater bodies such as lakes and streams, water that
collects in discarded tires, and certain crop sites such as rice fields. Pesticides containing
Bacillus sphaericus 2362, serotype H5a5b, strain ABTS 1743, are not registered for use in or
on treated or finished drinking water for human consumption.
Target pests: Specific kinds of mosquitoes, including some that transmit diseases such as
encephalitis.
Application Methods: Granules or powders that contain the active ingredient are mixed with
water and other substances, and then sprayed from the air or from the ground. Pesticide
products containing this Bacillus sphaericus remain active for one to four weeks after
spraying. The length of time varies, depending primarily on the species of mosquito larvae,
environmental conditions, water quality, and exact form of the granules.
III.	Assessing Risks to Human Health
Based on extensive testing, no harmful effects are expected to occur to the public when
pesticide products with this active ingredient are applied according to label directions.
Because there is the potential for skin and eye irritation, applicators are warned to avoid

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direct contact with the granules or a concentrated spray mix.
IV.	Assessing Risks to the Environment
Various tests revealed no expected harm to non-target organisms.
V.	Regulatory Information
Bacillus sphaericus 2362, serotype H5a5b, strain ABTS 1743 was registered (approved for
sale) as an active ingredient in 1991. As of March 2013, there were 4 registered pesticide
products (one manufacturing use and 3 end-use products) containing Bacillus sphaericus
2362, serotype H5a5b, strain ABTS 1743 as the active ingredient.
VI.	Products Directed Against Public Health Pests
EPA defines a public health pest as any organism that can cause or transmit human disease,
or can cause human discomfort or injury. Examples include mosquitoes, ticks, and rats. To
help protect the public's health, EPA requires registrants of products used against public
health pests to demonstrate that the product meets specific standards for effectiveness as
well as for safety. The pesticide products currently registered with Bacillus sphaericus 2362,
serotype H5a5b, strain ABTS 1743 as the active ingredient have met these stringent
standards.
VII.	Producer Information
Valent Biosciences Corporation
870 Technology Way
Libertyville, IL 60048
VIII.	Additional Contact Information
Communications and Registration Liaison
Biopesticides and Pollution Prevention Division (7511P) Office of Pesticide Programs
Environmental Protection Agency
1200 Pennsylvania Avenue, NW Washington, D.C. 20460
http://www.epa.gov/oppbppdl/biopesticides/contacts bppd.htm

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US Environmental Protection Agency
Office of Pesticide Programs
Fact Sheet
Bacillus sphaericus 2362, serotype H5a5b, strain AM614
(PC Code 119804)
Summary text
This pesticide active ingredient is a naturally occurring bacterium that is found in the United
States and throughout the world. It kills mosquito larvae when the larvae ingest the bacterial
spores in moist or wet areas such as lakes, coasts, streams, swamps, and drainage ditches.
I.	Description of the Active Ingredient
Bacillus sphaericus 2362, serotype H5a5b was isolated in 1981 form an adult blackfly in
Nigeria and subsequently obtained in the United States. The Bacillus sphaericus 2362,
serotype H5a5b first registered in 2008 was subsequently given the pesticide active
ingredient designation Bacillus sphaericus 2362, serotype H5a5b, strain AM614.
Spores of this bacterium contain a protein that damages and paralyzes the gut of mosquito
larvae that ingest the spores, thus starving the larvae.
II.	Use Sites, Target Pests, and Application Methods
Use Sites:
Habitats where mosquitoes live and lay eggs, such as storm water and drainage systems,
marine and coastal areas, freshwater bodies such as lakes and streams, water that collects in
discarded tires, and certain crop sites such as rice fields. Pesticides containing Bacillus
sphaericus 2362, serotype H5a5b, strain AM614, are not registered for use in or on treated
or finished drinking water for human consumption.
Target pests: Specific kinds of mosquitoes, including some that transmit diseases such as
encephalitis.
Application Methods: Granules or powders that contain the active ingredient are mixed with
water and other substances, and then sprayed from the air or from the ground. Briquettes or
granules are applied by hand. Pesticide products containing this Bacillus sphaericus remain
active for one to four weeks after spraying. The length of time varies, depending primarily on
the species of mosquito larvae, environmental conditions, water quality, and exact form of
the granules.
III.	Assessing Risks to Human Health
Based on extensive testing, no harmful effects are expected to occur to the public when
pesticide products with this active ingredient are applied according to label directions.

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Because there is the potential for skin and eye irritation, applicators are warned to avoid
direct contact with the granules or a concentrated spray mix.
IV.	Assessing Risks to the Environment
Various tests revealed no expected harm to non-target organisms.
V.	Regulatory Information
Bacillus sphaericus 2362, serotype H5a5b, strain AM614 was registered (approved for sale)
as an active ingredient in 2008. As of March 2013, there were 6 registered pesticide products
(one technical and five end-use products) containing Bacillus sphaericus 2362, serotype
H5a5b, strain AM614 as the active ingredient.
VI.	Products Directed Against Public Health Pests
EPA defines a public health pest as any organism that can cause or transmit human disease,
or can cause human discomfort or injury. Examples include mosquitoes, ticks, and rats. To
help protect the public's health, EPA requires registrants of products used against public
health pests to demonstrate that the product meets specific standards for effectiveness as
well as for safety. The pesticide products currently registered with Bacillus sphaericus 2362,
serotype H5a5b, strain AM614 as the active ingredient have met these stringent standards.
VII.	Producer Information
Advanced Microbiologics, LLC
1801 North Gale Road
Mitchell, SD 57301
VIII.	Additional Contact Information
Communications and Registration Liaison
Biopesticides and Pollution Prevention Division (7511P) Office of Pesticide Programs
Environmental Protection Agency
1200 Pennsylvania Avenue, NW Washington, D.C. 20460
http://www.epa.gov/oppbppdl/biopesticides/contacts bppd.htm

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