Hegazy, M., Shokr, S., Abu-zahw, M., Salem, R., Basuni, A. (2002). PERSISTENCE OF LEBAYCID AND MALATHION RESIDUES ON AND IN SUGER-BEET PLANTS.. Journal of Plant Protection and Pathology, 27(3), 1873-1877. doi: 10.21608/jppp.2002.253438
M. E. A. Hegazy; Sh. A. A. Shokr; M. M. Abu-zahw; R. M. Salem; A . A. Basuni. "PERSISTENCE OF LEBAYCID AND MALATHION RESIDUES ON AND IN SUGER-BEET PLANTS.". Journal of Plant Protection and Pathology, 27, 3, 2002, 1873-1877. doi: 10.21608/jppp.2002.253438
Hegazy, M., Shokr, S., Abu-zahw, M., Salem, R., Basuni, A. (2002). 'PERSISTENCE OF LEBAYCID AND MALATHION RESIDUES ON AND IN SUGER-BEET PLANTS.', Journal of Plant Protection and Pathology, 27(3), pp. 1873-1877. doi: 10.21608/jppp.2002.253438
Hegazy, M., Shokr, S., Abu-zahw, M., Salem, R., Basuni, A. PERSISTENCE OF LEBAYCID AND MALATHION RESIDUES ON AND IN SUGER-BEET PLANTS.. Journal of Plant Protection and Pathology, 2002; 27(3): 1873-1877. doi: 10.21608/jppp.2002.253438
PERSISTENCE OF LEBAYCID AND MALATHION RESIDUES ON AND IN SUGER-BEET PLANTS.
1Central Agricultural Pesticides Laboratory Agricultural Research Center, Dokki-Giza, Egypt.
2Plant Protection Institute. Agricultural Research Center, Dokki-Giza, Egypt.
3Sugar Crops Research Institute. Agricultural Research Center, Dokki- Giza, Egypt.
Abstract
These studies were carried out to investigate the residual behaviour of lebaycid and malathion organophosphorus insecticides on sugar-beet (vegetative parts and roots) plants. Determined residue half-life values (RL50) in vegetative parts were 14.4 and 14.7 hours for lebaycid and malathion , respectively.
In vegetative parts, the initial amount detected of lebaycid (5.04 ppm) was less than the initial amount found of malathion (40.90 ppm), while the initial concentration was undetected in sugar-beet roots for each of lebaycid and malathion. The vegetative parts did not have any detectable residues of lebaycid and malathion after 9 and 20 days from application, respectively. No detectable amount of lebaycid and malathion residues were found in the roots all days after treatment. So sugar-beet roots treated with each of the two tested insecticides could be used safely in sugar industry