Aly, S., Ramadan, H. (2002). EFFECT OF NEEM AZAL·T ON THE COTTON LEAFWORM Spodoptera littoralis (Lepidoptera: Noctuidae). Journal of Plant Protection and Pathology, 27(4), 2669-2675. doi: 10.21608/jppp.2002.253686
Somaia E. Aly; Hanan M. Ramadan. "EFFECT OF NEEM AZAL·T ON THE COTTON LEAFWORM Spodoptera littoralis (Lepidoptera: Noctuidae)". Journal of Plant Protection and Pathology, 27, 4, 2002, 2669-2675. doi: 10.21608/jppp.2002.253686
Aly, S., Ramadan, H. (2002). 'EFFECT OF NEEM AZAL·T ON THE COTTON LEAFWORM Spodoptera littoralis (Lepidoptera: Noctuidae)', Journal of Plant Protection and Pathology, 27(4), pp. 2669-2675. doi: 10.21608/jppp.2002.253686
Aly, S., Ramadan, H. EFFECT OF NEEM AZAL·T ON THE COTTON LEAFWORM Spodoptera littoralis (Lepidoptera: Noctuidae). Journal of Plant Protection and Pathology, 2002; 27(4): 2669-2675. doi: 10.21608/jppp.2002.253686
EFFECT OF NEEM AZAL·T ON THE COTTON LEAFWORM Spodoptera littoralis (Lepidoptera: Noctuidae)
Faculty of Agriculture, University of Alexandria, Department of Economic Entomology
Abstract
The effect of neem azal-T 5% (E.C.) was tested when added to the artificial diet of the 4th and e" instar Spodptera littoralis larvae (Lepidoptera: Noctuidae). Genarally higher concentrations of 1.5, 1 and 0.7% caused 100% of accumulated mortality. The lower concentrations of 0.5, 0.3 and 0.1 % caused different percentages of accumulated mortality. Prolongation of the larval instar period, malformation effects on larval, pupal and adult stages were observed with lower concentrations.
Keywords: Neem oil,Spodoptera littoralis larvae.
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