Carrier and Dispersal Mechanism for a Microorganic Larvicide.
DEPARTMENT OF THE NAVY WASHINGTON DC
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This document discloses a method of controlling mosquito larvae, by using a spore-forming bacillus ONR-60A obtained from screening clonal isolates from soil samples of known mosquito larval breeding sites. A larvicide comprising the bacillus and a carrier is formulated as a buoyant colloidal suspension which stabilizes just under the surface of the water to concentrate in the feeding zone of many varieties of mosquito larvae. Author