USDA pesticide applicators license in PA for aquatic use (category 09 requires a different category certification compared to Ornamentals, Shade trees (06). Turf (07)is separate in PA. Categories vary by state.
http://extension.psu.edu/pests/pesticide-education/applicators/certification/brochure

The correct application method is to insure even distribution throughout the water column especially during thermal stratification. Drop tubes are recommended and/or bottom based aeration for distributing the chemical into the deep water zone.

Last edited by Bill Cody; 07/31/14 03:43 PM.
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