INVESTIGATIONS ON THE PENETRATION OFINSECTICIDES INTO THE CUTICLE OF CITRUS LEAF

The penetration of fenvalerate and nicotine into the cuticule of citrus leafwas studied by using the insecticide residue analytical technique. It was foundout that the penetrating capability of two selected insecticides differed due tothe variation in their physicochemical natures.The results also showed that thestomal density, addition of surfactants and temperature had positive effect onthe penetration process.