EFFECTS OF THREE PESTICIDES ON SOME BIOLOGICAL ASPECTS OF COTTON LEAF WORM (Spodoptera littoralis, BOISD) LARVAE UNDER LABORATORY CONDITIONS .
Marzouk, E., Megahed, M., Abouamer, W., El-Bamby, M. (2012). EFFECTS OF THREE PESTICIDES ON SOME BIOLOGICAL ASPECTS OF COTTON LEAF WORM (Spodoptera littoralis, BOISD) LARVAE UNDER LABORATORY CONDITIONS .. EKB Journal Management System, 3(12), 1345-1352. doi: 10.21608/jppp.2012.84420
E. A. Marzouk; M. M. M. Megahed; W. L. Abouamer; M. M. El-Bamby. "EFFECTS OF THREE PESTICIDES ON SOME BIOLOGICAL ASPECTS OF COTTON LEAF WORM (Spodoptera littoralis, BOISD) LARVAE UNDER LABORATORY CONDITIONS .". EKB Journal Management System, 3, 12, 2012, 1345-1352. doi: 10.21608/jppp.2012.84420
Marzouk, E., Megahed, M., Abouamer, W., El-Bamby, M. (2012). 'EFFECTS OF THREE PESTICIDES ON SOME BIOLOGICAL ASPECTS OF COTTON LEAF WORM (Spodoptera littoralis, BOISD) LARVAE UNDER LABORATORY CONDITIONS .', EKB Journal Management System, 3(12), pp. 1345-1352. doi: 10.21608/jppp.2012.84420
Marzouk, E., Megahed, M., Abouamer, W., El-Bamby, M. EFFECTS OF THREE PESTICIDES ON SOME BIOLOGICAL ASPECTS OF COTTON LEAF WORM (Spodoptera littoralis, BOISD) LARVAE UNDER LABORATORY CONDITIONS .. EKB Journal Management System, 2012; 3(12): 1345-1352. doi: 10.21608/jppp.2012.84420

EFFECTS OF THREE PESTICIDES ON SOME BIOLOGICAL ASPECTS OF COTTON LEAF WORM (Spodoptera littoralis, BOISD) LARVAE UNDER LABORATORY CONDITIONS .

Journal of Plant Protection and Pathology
Article 8, Volume 3, Issue 12, December 2012, Page 1345-1352  XML PDF (272.58 K)
Document Type: Original Article
DOI: 10.21608/jppp.2012.84420
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Authors
E. A. Marzouk1; M. M. M. Megahed1; W. L. Abouamer1; M. M. El-Bamby2
1Plant protection Dept., Fac. Agric., Al-Azhar Univ., Nasr City , Cairo, Egypt.
2Environment and Bio-Agriculture, Fac. Agric., Al-Azhar Univ., Nasr City , Cairo, Egypt.
Abstract
The effects of bromoxynil (Brominal W 24 % EC, herbicide) and mancozeb (Acrobate mancozeb72% WP, fungicide) on some biological aspects of Egyptian cotton leafworm, Spodoptera littoralis (Boisd.) larvae compered to profenofos (Silicron 72 % EC, insecticide), as a refrence compound were investigated. 4th instar larvae were fed on castor-bean leaves treated with profenofos at 40, 45, 50, 60, 75 and 90 ppm, bromoxynil and mancozeb, both at 500, 750, 1000, 1250, 1500, 2000 and 2500 ppm. The obtained results showed that larval and pupal weights, growth rate, consumption index (C.I.), fecundity level , % of hatchability , % of deformed pupa , % of emergency and % of sterility decreased by the tested  pesticides  compared with that in control.  Profenofos, caused significant increases in larval and pupal duration, but not observed with bromoxynil and mancozeb concentrations.  Profenofos markedly affect all the tested parameters of 4th instar larvae of cotton leaf worm, S. littoralis.
Keywords
Profenofos; bromoxynil; mancozeb; 4th instar larvae Spodoptera littoralis
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