PERSISTENCE OF LEBAYCID AND MALATHION RESIDUES ON AND IN SUGER-BEET PLANTS. | ||||
Journal of Plant Protection and Pathology | ||||
Article 3, Volume 27, Issue 3, March 2002, Page 1873-1877 PDF (355.28 K) | ||||
Document Type: Original Article | ||||
DOI: 10.21608/jppp.2002.253438 | ||||
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Authors | ||||
M. E. A. Hegazy1; Sh. A. A. Shokr1; M. M. Abu-zahw1; R. M. Salem2; A . A. Basuni3 | ||||
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 | ||||
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