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Journal of Environmental Science and Technology
  Year: 2014 | Volume: 7 | Issue: 5 | Page No.: 294-304
DOI: 10.3923/jest.2014.294.304
Efficacy of Methomyl after Application Against Cotton Leaf Worm in Soybean and Removal Kinetics of its Residue
Ahmed Massoud, Aly Derbalah, Hamdy El-Shshtaway and Fatma Sleem

Abstract:
Soybean crop (Glycine max L.) is a very important economic crop belongs to leguminosae, through-out considered one of the high potentially protein source that attacked by Cotton leaf worm, Spodoptera littoralis (Boisd), the major pest thorugh-out the growing season. Therefore, this study aimed to evaluate the insecticidal activity of methomyl against the cotton leaf worm (Spodoptera littoralis) on soybean genotype, Giza 21. Furthermore, to investigate the persistence of this tested insecticide after application under some of the environmental factors (direct sunlight, ultraviolet rays and temperature). Moreover, to evaluate the effect of some commercial processes on the safe removal of methomyl residues from soybean seeds. The results showed that methomyl was effective against cotton leaf worm. The exposure of methomyl to the direct sunlight, ultraviolet rays and different temperature degrees significantly reduced levels of the tested insecticide. Cooking procedure showed higher effect than dry heating at (90-95°C) on removal of tested insecticide from soybean seeds. The results showed that the food processing is an important way for minimizing methomyl in the final products lower than the maximum residue limits.
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How to cite this article:

Ahmed Massoud, Aly Derbalah, Hamdy El-Shshtaway and Fatma Sleem, 2014. Efficacy of Methomyl after Application Against Cotton Leaf Worm in Soybean and Removal Kinetics of its Residue. Journal of Environmental Science and Technology, 7: 294-304.

DOI: 10.3923/jest.2014.294.304

URL: https://scialert.net/abstract/?doi=jest.2014.294.304

 
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