History of Non-Selective Applicators<BR>1909 – Insecticide Wiper <BR>1940’s – burlap sack tied to spray boom <BR>1966 – wax bar <BR>1970 – recirculating sprayer <BR>1977 – carpet roller <BR>1978 – rope-wick <BR>1979 – wet apron <BR>1980 – continuous belt <BR>1982(?) – fabric, sponge or fiber brush wiper <BR>1983 – rotary wiper<BR>Source: C.G. McWhorter and M.R. Gebhardt, eds. 1987. Methods of Applying Herbicides. WSSA Monograph Number 4, pages 207-229.<BR>