Biodetrimental effects of the Corn hybrids, Neemazal-T/S and Chlorphan 48% on the pink corn borer Sesamia cretica Led

• Published in: Archiv für Phytopathologie und Pflanzenschutz Vol. 45; no. 17; pp. 2014 - 2025
• Main Authors: Ismail, I.A, Abdel-Moniem, A.S.H, El-Shazly, E.A, El Shabrawy, H.A, Abdel-Rahman, R.S
• Format: Journal Article
• Language: English
• Published: Abingdon Taylor & Francis 01.10.2012; Taylor & Francis Ltd
• Subjects: antifeedant activity; Bacillus thuringiensis; Bt. corn; Chlorpyrifos; Corn; Data processing; Feeding; Feeding behavior; Food consumption; Genetic engineering; genetically modified organisms; Hybrids; Insecticides; larvae; NeemAzal-T/S; Plant protection; Sesamia cretica; Sesamia cretica Led; toxicity; Zea mays
• ISSN: 1477-2906; 0323-5408; 1477-2906
• DOI: 10.1080/03235408.2012.720462

The aim of this study was to investigate influence of transgenic and commercial corn hybrids on the behaviour and feeding activity of the pink corn borer (Sesamia cretica Led.). Food consumption was different according to feeding period and hybrids. The feeding ratio of S. cretica on maize hybrids was significantly different between transgenic and commercial hybrids. It appears from the results of this experiment that the antifeeeding activity of transgenic hybrids had greater effect than commercial hybrids one. Thus, it is apparent from these results that transgenic maize was unsuitable because larvae were dead, but the other commercial hybrids were preferable. It can be concluded from the data that the feeding on different maize hybrids had different effects on certain biological aspects of pink corn borer. The impact of untreated Bt. Corn; 0.5% water emulsion of Neem-Azal-T/S and 0.005% water emulsion of Chlorpyrifos insecticides on the behaviour and feeding activity of the pink corn borer S. cretica has been studied. The data showed that larvae stopped feeding from the time when it was fed on untreated Bt. corn or/and non Bt. Corn treated with NeemAzal-T/S 0.5%. The results indicated that Bt. corn, NeemAzal-T/S 0.5% and Chlorphan 48% (0.005%) possessed the toxic effect on pink corn borer S. cretica. According to results, it could be stated that the tested compounds can play an important role in controlling the pink corn borer.