Protective pre harvest spray of three fungicides i.e. Benlate [Methyl 1-(butyl carbamoyl)-2-benzimidazol carbamatej, Prochloraz [1- (N-propyl-N- (2-(2,4,6 -tri-chlorophenoxy) ethyl) carbamoyl) imidazole] and Vinchlozolin [3 - (3,5 Dichlorophenyl) 5-etheny1-5-methyl-2,4- oxazolidinedione] were applied to Strawberry (Fragaria chiloensis Duches­ne var ananassa Baily) (cv. Pajaro) at 0.5, 1, 2 g I ^-1 under either natural or artificial infection. The applied fungicides significantly reduced the lev­el of gray mold caused by Botrytis cinerea. Excellent control was ob­tained with Vinchlozolin, at the rate of 2.0 g I -' which developed 4.8% and 1.2% rot for two successive years compared with 28.5% and 16.2% in the check under artificial infection conditions. Gas chromatographic detection of Vinchlozolin in treated straw­berries revealed residues of 0.0354, 0.3871 and 0.0838 ppm after two days, one and two weeks, respectively, in strawberries treated with 2.0 g '¹.