Defoliants, deposition

At Eglin AFB, Florida, the U.S. Air Force initiated an experiment in 1962 to test aerial application equipment for deposition of defoliants... 

For this purpose an elaborate testing Installation, designed to measure deposition parameters, was established on the Eglln Reservation with the place of direct aerial application restricted to an area of approximately 3 km within Test Area C-52A In the southeastern part of the reservation. Massive quantities of herbicides, used In the testing of aerial defoliation spray equipment from 1962 through 1970, were released and fell within the Instrumented test area. The uniqueness of the area prompted the United States Air Force to set aside the area In 1970 for research Investigations. Numerous ecological surveys have been conducted since 1970. As a result, the ecosystem of this unique site has been well studied and documented (2,3). 

The adhesion of a charged aerosol to the leaves of plants is 5-6 times that of an uncharged aerosol [478]. In dusting plants and defoliating cotton with a charged aerosol, the amount of the preparation used is halved as a result of the adhesive forces. In addition to the quantitative improvement, the charging of the particles ensures an even deposit over the whole surface of the plant leaves, including the underside [479]. 

Uses Spray adjuvant designed to improve pesticide applic. by moditying wetting, spreading, and deposition of tank mix sprays Features Compat. with wide range of pesticides forms stable emulsions in their tank mixes intended for use with herbicides and defoliants where crop oil concentrate is rec. approved for aquatic applies. 

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