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Saleh,, A., Askar, E., Abd-El-Mageed, A. (2000). RESIDUES OF TWO INSECTICIDES ON SQUASH (CUCURBITO PEPO) AND THEIR EFFECT ON QUALITY AND QUANTITY OF CROP. Journal of Plant Protection and Pathology, 25(7), 4677-4691. doi: 10.21608/jppp.2000.259231
A. A. Saleh,; E. A. Askar; A. E. Abd-El-Mageed. "RESIDUES OF TWO INSECTICIDES ON SQUASH (CUCURBITO PEPO) AND THEIR EFFECT ON QUALITY AND QUANTITY OF CROP". Journal of Plant Protection and Pathology, 25, 7, 2000, 4677-4691. doi: 10.21608/jppp.2000.259231
Saleh,, A., Askar, E., Abd-El-Mageed, A. (2000). 'RESIDUES OF TWO INSECTICIDES ON SQUASH (CUCURBITO PEPO) AND THEIR EFFECT ON QUALITY AND QUANTITY OF CROP', Journal of Plant Protection and Pathology, 25(7), pp. 4677-4691. doi: 10.21608/jppp.2000.259231
Saleh,, A., Askar, E., Abd-El-Mageed, A. RESIDUES OF TWO INSECTICIDES ON SQUASH (CUCURBITO PEPO) AND THEIR EFFECT ON QUALITY AND QUANTITY OF CROP. Journal of Plant Protection and Pathology, 2000; 25(7): 4677-4691. doi: 10.21608/jppp.2000.259231

RESIDUES OF TWO INSECTICIDES ON SQUASH (CUCURBITO PEPO) AND THEIR EFFECT ON QUALITY AND QUANTITY OF CROP

Article 5, Volume 25, Issue 7, July 2000, Page 4677-4691  XML PDF (780.14 K)
Document Type: Original Article
DOI: 10.21608/jppp.2000.259231
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Authors
A. A. Saleh,1; E. A. Askar1; A. E. Abd-El-Mageed2
1Pesticide Dept. Fac. of Agric., Mansoura, University
2Horticulture Research station, Mansoura.
Abstract
Squash plants were sprayed two times with actellic and selecron at two rates; the recommended and half the recommended rate to detemine the residue of the two insecticides and their effect on quantity and quality of sqush yield. Gas liquid chromatography (G.L.C) equipped with flame photometric detector (FPD) with phosphorous mode (P-mode) for selecron were used for determination.
The initial deposite of actellic at the recommended rate was (21.421 ppm), the fruits could be marketed safely for human consumption after 11 days as they had residues below the allowable tolerance level (2 ppm) on edible plants and its residue half life (T½) was 2.259 days.
The initial deposit of selecron at the recommended rate was (22.116 ppm). No detectable residue were obtained after 14 days of application.
Results also revealed that, there were significant differences between treatments and as compared with untreated control in number of fruit / plot, and the best weight was obtained by selecron at the half recommended rate. It was also found that all the tested insecticides had no effect on physical characteristic and chemical constituents of squash fruits.
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