http://en.wikipedia.org/wiki/Marine_Corps_Air_Station_Cherry_Point

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October 2000 saw the 757th Airlift Squadron's primary mission change from Airlift/Airdrop to specifically training for aerial spray. The aerial spray program was further broadened in the year 2000 with testing of a target specific (mosquito larvae) biological control agent, Bacillus thuringiensis israelensis at Cherry Point Marine Corps Air Station, North Carolina. This material is applied to water where the larva of the mosquito is developing and stops production of adult mosquitoes. The agent acts specifically on the mosquito larva.
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http://www.globalsecurity.org/military/agency/usaf/757as.htm

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