Efficiency of some compounds for controlling the cotton leaf worm, spodoptera littoralis (boisd.) | ||
| Mansoura Journal of Biology | ||
| Volume 42, Issue 1, March 2019, Pages 18-22 PDF (548.6 K) | ||
| Document Type: Original Article | ||
| DOI: 10.21608/mjb.2019.463321 | ||
| Authors | ||
| Abou El-Naga, Z.S* 1; Ebeid, A. A.1; Abd El- Wahab, H. A.2; EL-Refaie, R. M2 | ||
| 1Faculty of Science, Mansoura University, Egypt | ||
| 2Plant Protection Research Institute, Giza, Egypt | ||
| Abstract | ||
| The study aims to evaluate the bioactivity of a plant extract, Citrullus colocynthis and commercial active ingredients from plant origin (thymol and camphor) comparing with Agron 10% on 2nd instar larvae of the cotton leaf worm, Spodoptera littoralis (Boisd). Also, LC50 of each treatment was established against 2nd instar larvae of S. littoralis and malformations were noticed specially for larvae treated with the tested plant extract and the plant active ingredients, the malformations include shrinkage in treated larval size, pale in colours and harding in larval body. The obtained results reveal that Agron 10% was more effective than other materials since it recorded (LC50 0.705 ppm). However, camphor was the most effective material from plant origin for controlling 2nd instar larvae of cotton leafworm with LC50 2257.16 ppm followed by Citrullus plant extract with LC50 2325.72 ppm then thymol with LC50 5523.28 ppm.. | ||
| Keywords | ||
| Spodoptera littoralis; camphor; thymol; Citrullus colocynthis; Agron 10%; biological effects | ||
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