Research Report

Bioactivity of An Organic Synergist in Enhancing the Efficacy of Neem Kernel Aqueous Extracts (NKAE) and Three Recommended Acaricides in Controlling Tea Red Spider Mite (Oligonychus coffeae)  

B. Deka1 , A.  Babu1 , S.  Sarkar1 , S.  Mandal1 , N.  Kundu1 , P. K.  Patanjali2 , P.  Bhandari2
1 Tea Research Association, North Bengal Regional R&D Centre, Nagrakata-735225, West Bengal, India
2 Institute of Pesticide Formulation Technology, Gurgaon-122016, India
Author    Correspondence author
Journal of Tea Science Research, 2017, Vol. 7, No. 8   doi: 10.5376/jtsr.2017.07.0008
Received: 27 May, 2017    Accepted: 17 Jun., 2017    Published: 30 Jun., 2017
© 2017 BioPublisher Publishing Platform
This is an open access article published under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
Preferred citation for this article:

Deka B., Babu A., Sarkar S., Mandal S., Kundu N., Patanjali P.K., and Bhandari P., 2017, Bioactivity of an organic synergist in enhancing the efficacy of neem kernel aqueous extract (NKAE) and three recommended acaricides in controlling tea red spider mite (Oligonychus Coffeae), Journal of Tea Science Research, 7(8): 40-45 (doi: 10.5376/jtsr.2017.07.0008)

Abstract

The bioactivity of an organic synergist (supplied by the Institute of Pesticide Formulation Technology, Gurgaon, India) was assessed to establish the enhanced efficacy of Neem kernel Aqueous extract (NKAE) and three recommended acaricides such as Fenpyroximate 5 EC, Ethion 50 EC and Spiromesifen 22.9 SC against one of the major tea pest, red spider mite under laboratory conditions. The selected three different acaricides, with recommended doses were tested and their efficacies were compared with that of NKAE. The study revealed that organic synergist enhanced the efficacy of Neem kernel powder (NKP) (even it is @ 2.5% NKP) to the tune of almost 45% and enhanced the efficacy of each acaricides to the tune of almost 20-40% compared to the individual treatments which could be further exploited for reducing the pesticide load on tea.

Keywords
Neem Kernel Aqueous Extract; Organic Synergist; Red Spider Mite; Tea
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