Abstract: A method and apparatus for broadcast dispersion of biologically active encapsulated dispensers over preselected areas in a preselected pattern which utilizes a primary rotating applicator. The apparatus includes a hopper for the encapsulated dispensers and means for moving the dispensers onto a surface of the primary applicator from there to be discharged tangentially. A "sticker" substance is mixed with the dispensers. The distribution pattern is modified by one or more secondary directional spreaders located adjacent the primary applicator which serve to deflect and re-direct the dispensers.

Abstract: A method and apparatus for evenly dispersing trace quantities of biologically active chemicals encapsulated in a microdispenser which utilizes a rotating applicator device. The apparatus includes a hopper for the dispenser and means for moving the dispensers to the applicator device. A "sticker" substance is mixed with the dispensers. In one embodiment the applicator device consists of a rotating cone and the dispensers are deposited on a surface of the cone for dispersion. In another embodiment, the applicator consists of a rotating drum or wheel for contact application of the dispensers to living organisms.