A Novel Approach of Chitosan and Its Derivatives Bioactivity Against The Pinworm Tuta absoluta Meyrick (Lepidoptera: Gelechiidae) | ||||
| Journal of Plant Protection and Pathology | ||||
| Article 11, Volume 12, Issue 4, April 2021, Page 323-330 PDF (1.02 MB) | ||||
| Document Type: Original Article | ||||
| DOI: 10.21608/jppp.2021.171290 | ||||
 View on SCiNiTO | ||||
| Author | ||||
M. S. Zayed 
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| Dept. of Pesticides, Fac. of Agri., Damietta University, Egypt | ||||
| Abstract | ||||
| The present study was carried out to evaluate the relative insecticidal and biological activity of chitosan and its derivativesagainst the 2nd larval instar of T. absoluta compared to the unprecedented insecticide chloroanatrilprole (Coragen) using standardized method of bioassay under laboratory conditions. The larvacidal activity for the different treatments against 2nd instar larvae of T. absoluta were predestined. Also, effect of the tested agents on growth inhibition, antifeedant and life-cycle of the tested insect were determined. The results revealed that chitosan nanoparticles (NPs) was the most effective treatment against 2nd larval instar and eggs deposited per gravid female of T. absoluta. while, chitosan hydroxyapatite nanoparticles (NPs) was the highest effective treatment on growth inhibition and antifeedant. All tested agents disrupted life cycle of the tested insect under laboratory conditions. Therefore, this study suggests the possible using of chitosan and its derivativesas safe alternatives to conventional insecticide and compatible with integrated pest management practices. | ||||
| Keywords | ||||
| Chitosan; Nanoparticles; Tuta absoluta; Biology | ||||
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