© Benaki Phytopathological Institute
Malhat
et al.
60
er health risks are minimal at recommended
dose on tomatoes.
In this study, the dissipation dynamic
and risk assessment of methomyl were in-
vestigated in tomatoes under field condi-
tions to determine consumer safety. A rela-
tive simple and fast method was developed
to analyze the residue of methomyl in toma-
toes fruit and soil. The residue of methomyl
dissipated following first order kinetics. The
results of this study are expected to help es-
tablish the safe and proper use of methom-
yl in tomatoes crop grown under field con-
ditions in Egypt.
Part of this work was funded by the Japanese
Society for the Promotion of Science (JSPS) op-
erating grant (26.04074) provided as Postdoc-
toral Fellowship for Foreign Researchers to the
first author. The authors are grateful to all the
stuff in Central Agricultural Pesticide Labora-
tory (Egypt) for their technical support.
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Theoretical maximum residue contribution (TMRC) and maximum permissible in-
take (MPI) of methomyl in tomatoes.
Pesticide
name
Dose
(kg a.i. ha
-1
)
ADI
(mg kg b.w)
MPI
(mg/per-
son/day)
TMRC (mg/person/day)
0 day 1 day 2 days 4 days 7 days 10 days 13 days
Methomyl
0.675
0.020
1.2 0.098 0.057 0.039 0.020 0.003 0.0006 -
