Efficacy of Predatory Beetles, Serangium japonicum and Parasitoid Eretmocerus sp. to Control Tobacco Whitefly, Bemisia tabaci in Chili

Authors

  • Saiphon Thodthasri Agriculture section, Faculty of Agriculture and Agricultural Industry, Surin Rajabhat University, Surin

Keywords:

predatory beetle, Serangium japonicum Chapin, parasitoid, Eretmocerus sp., predation, parasitization

Abstract

Tobacco whitefly, Bemisia tabaci is a serious pest of chili because of their begomovirus transmissions (Pepper yellow leaf curl virus; PeYLCV). The objective of this study was to determine the efficacy to control tobacco whitefly in chili plant with predatory beetles, Serangium japonicum  and parasitoid, Eretmocerus sp. The experimental design was Completely Randomized Design (CRD) with        6 replication into 4 treatments include the following: no release (T1), released of S. japonicum   (3 pairs/plant, T2), released Eretmocerus sp. (6 individual/m2, T3) and released Eretmocerus sp. after releasing Serangium japonicum Chapin 1 week (T4). After 8 weeks, the highest whitefly population reduction was found in T3 with 27.67 individual/plant (17.39 fold). There was significant different in T2 (48.67 individual/plant, 9.89 fold) and T4 (49.33 individual/plant, 9.75 fold). The highest Eretmocerus sp.       was in T3 (59.33 individual/m2) and following by T4 (12.00 individual/m2) that was not significantly. The result revealed that number of Serangium japonicum was not significantly every week.

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Published

2021-08-28

How to Cite

Thodthasri, S. . (2021). Efficacy of Predatory Beetles, Serangium japonicum and Parasitoid Eretmocerus sp. to Control Tobacco Whitefly, Bemisia tabaci in Chili . Journal of Agricultural Research and Extension, 38(2), 57–67. retrieved from https://li01.tci-thaijo.org/index.php/MJUJN/article/view/236966

Issue

Vol. 38 No. 2 (2021): May - August 2021

Section

Research Article

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