Comparative disappearance of dioxathion, malathion, oxydemetonmethyl and dialifor from Florida citrus leaf and fruit surfaces.

Surface residue disappearance rates of dioxathion, malathion, oxydemetonmethyl, and dialifor were the same for fruit and leaves, and they increase with temperature. Disappearance rates were in the order of malathion greater than or equal to oxydemetonmethyl greater than dialifor greater than or equal to dioxathion. Malaoxon was present in relatively constant amounts under dry, cool, clear conditions but was not detected under wet, hot, cloudy conditions.