Species composition, population dynamics,and assessment of biopesticide application on thrips (Thysanoptera)in Sacred lotus Nelumbo nucifera Gaertn.
รหัสดีโอไอ
Creator 1. Somruedee Seehavet
2. Pitchaporn Phonkacha
3. Panupon Hongpakdee
4. Ubon Tangkawanit
Title Species composition, population dynamics,and assessment of biopesticide application on thrips (Thysanoptera)in Sacred lotus Nelumbo nucifera Gaertn.
Publisher Research and Development Office, Prince of Songkla University
Publication Year 2022
Journal Title Songklanakarin Journal of Science an Technology (SJST)
Journal Vol. 44
Journal No. 2
Page no. 459-465
Keyword Scirtothrips dorsalis, Selenothrips rubrocinctus, Frankliniella schultzei, niche, wood vinegar
URL Website https://rdo.psu.ac.th/sjst/index.php
ISSN 0125-3395
Abstract Species composition and population dynamics of thrips in sacred lotus, Nelumbo nucifera Gaertn, were examined innatural and cultivated areas. The results indicated that three species of thrips (Scirtothrips dorsalis Hood, Selenothripsrubrocinctus (Giard) and Frankliniella schultzei (Trybom)) were present on various parts of the plant. S. dorsalis had the widestniche breadth; it was the predominant species and was more abundant in cultivated area than in natural areas. The abundance wasrelated to seasonal variations and farmerโs practices. Three biopesticides, namely wood vinegar, azadiractin, and theentomopathogenic fungus Beauvaria bassiana, were experimentally found to reduce S. dorsalis on lotus. The efficiency againstS. dorsalis of imidacloprid was not significantly different from that of wood vinegar. The value of Shannon-Wiener diversityindex was lower than in the other treatments, but Simpsonโs index indicated that diversity of the aquatic organism after woodvinegar treatment was highest. Although the efficiency of biopesticides and chemical control did not differ much, frombiodiversity perspective the biopesticides are easily biodegradable and do not cause resistance build-up among the pests.Therefore, biopesticides, such as wood vinegar, are alternative methods for thrip control in sacred lotus.
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