1987•Environmental Toxicology and ChemistryRequires access
RESIDUES OF DIMETHIOATE AND METHOMYL ON TOMATO AND CABBAGE IN RELATION TO THEIR EFFECT ON QUALITY-RELATED PROPERTIES
Mohamed A. Othman, George F. Antonįous, Marium M. Khattab, A. Abdel-All, Awatef E. Khamis
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Abstract
Dimethoate EC 40% and methomyl 90% WSP were applied under field conditions to follow up the decline of their residues on tomato and cabbage plants. The results indicate that the level of dimethoate and methomyl residues were found to be below tolerance level after 7 and 3 d from application, respectively. Dimethoate and methomyl residues also had significant effects on ascorbic acid contents in tomato fruits after 1 and 7 d for dimethoate, while the effect was after 3 and 10 d for methomyl. Dimethoate also showed significant effects on total soluble solids in tomato fruits presented until 14 d after pesticide application. Both dimethoate and methomyl had significant effect on both iron and magnesium content in tomato fruits and leaves and cabbage leaves during the 14 d.