Patent ID: 7481023

Claim:
A pesticide injection system comprising: a plug frictionally engageable with a wall; said plug having a tube with an open end and a closed end and a wall of said tube having an aperture therein near said closed end; means for preventing back flow disposed within said tube between said closed end and said open end, and said means for preventing back flow slidably extending near and cooperating with the aperture; a flange integral with said tube disposed at said open end of said tube; and means for selectively covering said open end of said tube; an applicator having a pliable bottle for receiving a powder pesticide and a nozzle selectively attachable to said pliable bottle and rotatively seatable into said flange of said plug without passing through and exiting said plug during operation for injecting the powder pesticide into a blind space behind the wall; means for exposing a port on said nozzle, wherein said port exposing means disposed on said nozzle and selectively allowing said port to cooperate with the aperture of said tube of said plug; means for interlocking said nozzle to said plug disposed on said nozzle so that inadvertent injection of the powder pesticide is prevented until said nozzle is engageably mated with said plug; and said interlocking means cooperating with said port exposing means.