“…North American agricultural products valued at some $ 20 billion (U.S.) depend in some way on the honey bee (Levin, 1984;Winston and Scott, 1984). Pesticide use has also become an essential part of modern agriculture, and the honey bee is susceptible to many commonly used chemicals (Anderson and Atkins, 1968;Atkins, 1975;Johansen, 1977Johansen, , 1979Johansen, , 1983 (Stoner et al, 1985), carbaryl (Winterlin and Walker, 1973), dimethoate Waller et al, 1979;Barker et al, 1980;Stoner et al, 1983) and carbofuran (Stoner et al, 1982) to whole colonies reduced honey production, brood rearing and worker population size. Sublethal topical treatments to individual workers resulted in impairment in the dance language with methyl-parathion (Schricker and Stephen, 1970), reduced lifespan with malathion or diazinon (Smirle et al, 1984;MacKenzie, 1986); and altered foraging patterns with diazinon (MacKenzie, 1986) and permethrin (Cox and Wilson, 1984).…”