Toward Efficient and Safe Control Strategy Against cotton leaf worm Spodoptera Littoralis (Boisd.) (Lepidoptera: Noctuidae) Applying Onion and Pepper extracts and their Oils. | ||||
| Al-Azhar Bulletin of Science | ||||
| Article 2, Volume 32, Issue 2-C, December 2021, Page 9-15 PDF (515.76 K) | ||||
| Document Type: Original Article | ||||
| DOI: 10.21608/absb.2021.89834.1129 | ||||
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| Authors | ||||
Walaa H. Ahmed  1; Wedad A. Atwa1; Manal E. Elshaier1; Ghada E. Abdullah2
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| 1Zoology Department, Faculty of Science, Al-Azhar University, For Girls, Cairo, Egypt. | ||||
| 2Plant Protection Research Institute, Agriculural Research Center, Dokki, Giza, Egypt. | ||||
| Abstract | ||||
| Spodoptera littoralis (Boisduval) is a very destructive pest of a widely huge number of plants all over the world. It caused huge damage to several crops. Pesticides have dangerous effect on human health. Plant extracts and oil have been shown to act as potent acute or chronic insecticides and insect growth regulators. Different concentrations of onion extract, pepper extract and its essential oils were used against 2nd instar larvae beside Agron 10% under laboratory conditions. the treated larvae with onion, pepper extracts showed shrinkage in larvae size where onion oil, pepper oil caused obvious swelling. Onion extract showed the highest effect on 2nd instar larvae, comparing with the other extracts with LC50 =661.89 ppm and LC90 =8728.39 ppm.; while all treated larvae with Agron 10% died during the experiment without transfer to third instar and without any malformation. Spodoptera littoralis (Boisduval) is a very destructive pest of a widely huge number of plants all over the world. It caused huge damage to several crops. Pesticides have dangerous effect on human health. Plant extracts and oil have been shown to act as potent acute or chronic insecticides and insect growth regulators. Different concentrations of onion extract, pepper extract and its essential oils were used against 2nd instar larvae beside Agron 10% under laboratory conditions. the treated larvae with onion, pepper extracts showed shrinkage in larvae size where onion oil, pepper oil caused obvious swelling. Onion extract showed the highest effect on 2nd instar larvae, comparing with the other extracts with LC50 =661.89 ppm and LC90 =8728.39 ppm.; while all treated larvae with Agron 10% died during the experiment without transfer to third instar and without any malformation. | ||||
| Keywords | ||||
| Cotton leaf worm; Plant extracts; Plant oil; Agron 10% | ||||
| References | ||||
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