Enhanced Acaricidal Activity of Senna auriculata and Ocimum tenuiflorum Extracts with the Addition of Adjuvant against Red Spider Mite, Oligonychus coffeae Nietner (Acarina: Tetranychidae) Infesting Tea

2016 ◽  
Author(s):  
Pandian Kumar ◽  
Chandran Sundaravadivelan ◽  
Duraikkannu Vasantha Kumar ◽  
Azariah Babu
Keyword(s):  
Spider Mite ◽  
Acaricidal Activity ◽  
Red Spider Mite ◽  
Oligonychus Coffeae ◽  
Ocimum Tenuiflorum

scholarly journals Acaricidal activity of nishinda (Vitex negundo) leaf and garlic (Allium sativum) bulb extract against red spider mite, Oligonychus coffeae (Acari: Tetranychidae) in tea plantations of Darjeeling hill, West Bengal, India

2021 ◽  
Vol 65 (1) ◽  
pp. 59-64
Author(s):  
Piu Banerjee ◽  
Arghya Laha ◽  
Indrani Samaddar ◽  
Himaniv Biswas ◽  
Debjani Sarkar ◽  
...  
Keyword(s):  
Spider Mite ◽  
Allium Sativum ◽  
Spider Mites ◽  
Acaricidal Activity ◽  
Vitex Negundo ◽  
Red Spider Mite ◽  
Tea Plantations ◽  
Oligonychus Coffeae ◽  
Red Spider Mites

The red spider mite, Oligonychus coffeae (Nietner) serves as a serious threat to the Darjeeling tea plantations affecting the quality of the leaves. Various plant extracts are currently being researched as an alternative to the chemical pesticides to control the red spider mites. In the present study, the leaves of Vitex negundo L. and the bulb of Allium sativum L. were analyzed for their acaricidal activity on the larval, nymphal and adult stages of the mite. Both the extracts were found to have potent activity against red spider mites and may prove to be potential acaricides in future.

Clove Oil Efficacy on the Red Spider Mite, Oligonychus coffeae Nietner (Acari: Tetranychidae) Infesting Tea Plants

2015 ◽  
Vol 70 (1) ◽  
pp. 92-96 ◽  
Author(s):  
Archita Barua ◽  
Somnath Roy ◽  
Gautam Handique ◽  
Foridur Rahman Bora ◽  
Azizur Rahman ◽  
...  
Keyword(s):  
Spider Mite ◽  
Clove Oil ◽  
Red Spider Mite ◽  
Oligonychus Coffeae ◽  
Tea Plants

Effect of certain indigenous technical knowledge on the management of red spider mite (Oligonychus coffeae) in tea

2017 ◽  
Vol 45 (2) ◽  
pp. 135
Author(s):  
Kapil Kumar Bhuyan Gautam Kumar Saikia ◽  
Mukul Kumar Deka Subhash Chandra Barua
Keyword(s):  
Leaf Area ◽  
Spider Mite ◽  
Cow Dung ◽  
Technical Knowledge ◽  
Polygonum Hydropiper ◽  
Cent Concentration ◽  
Red Spider Mite ◽  
Cow Urine ◽  
Oligonychus Coffeae ◽  
Indigenous Technical Knowledge

<p>An investigation was carried out at Deha Tea Estate, Jorhat, Assam during 2015-16 by using different indigenous technical<br />knowledge (ITK) prevalent among different small tea growers. Fish extract at (0.25, 0.5 and 1%), Polygonum hydropiper at (2.5,<br />5 and 7.5%) and Azadirachtin (Neemazal-F 5%) were evaluated in field conditions against tea mite. The result showed that fish<br />extract in combination with cow dung, cow urine and water when sprayed at one per cent concentration, significantly reduced red<br />spider mite population (96.5%), percentage of leaves infestation (5.2%) and leaf area infested by the mite (11.6%). P. hydropiper<br />in combination with cow urine and water when sprayed at 7.5 per cent concentration significantly reduced red spider mite<br />population (87.5%), percentage of infestation (9.1%) and leaf area infested by the mite (12.9%). Among all the ITKs, fish extract<br />at one per cent caused higher reduction of infestation of red spider mite followed by P. hydropiper extract at 7.5 per cent.<br />Influence of both the treatments on the management of red spider mite was at par with that of commercial Azadirachtin.</p>

Life table and predation of Oligota pygmaea (Coleoptera: Staphylinidae) a major predator of the red spider mite, Oligonychus coffeae (Acarina: Tetranychidae) infesting tea

2009 ◽  
Vol 51 (1) ◽  
pp. 96-101 ◽  
Author(s):  
Kandasamy Perumalsamy ◽  
Rajagopal Selvasundaram ◽  
Amsalingam Roobakkumar ◽  
Vattakandy Jasin Rahman ◽  
Azariah Babu ◽  
...  
Keyword(s):  
Life Table ◽  
Spider Mite ◽  
Red Spider Mite ◽  
Oligonychus Coffeae

scholarly journals Susceptibility to acaricides and detoxifying enzyme activities in the red spider mite, Oligonychus coffeae Nietner (Acari: Tetranychidae)

Acarologia ◽  
2018 ◽  
Vol 58 (3) ◽  
pp. 647-654
Author(s):  
Somnath Roy ◽  
Anjali Km. Prasad ◽  
Gautam Handique ◽  
Bipanchi Deka
Keyword(s):  
Spider Mite ◽  
Management Strategies ◽  
Resistance Management ◽  
Management Program ◽  
Cytochrome P450 Monooxygenases ◽  
Tea Plantation ◽  
P450 Monooxygenases ◽  
Red Spider Mite ◽  
Median Lethal Concentrations ◽  
Oligonychus Coffeae

Susceptibility of red spider mite, Oligonychus coffeae Nietner (Acari: Tetranychidae), collected from conventionally-managed (synthetic acaricide usage) versus an organicallymanaged (no acaricide usage) tea plantations in Assam, India, to five synthetic acaricides was determined in laboratory bioassays. Activity of three principal detoxifying enzymes of these mite populations was also assayed. The median lethal concentrations (LC50) of ethion, dicofol, propargite, fenpropathrin, and fenazaquin were 1049.75, 599.21, 232.03, 11.44, and 6.75 ppm, respectively. Field rates of these acaricides were compared with 95% lethal concentration (LC95 in ppm) values, and a decrease in the susceptibility of the test population to ethion, propargite, dicofol and fenpropathrin was observed. There was no change for fenazaquin which was effective at lower doses than the recommended dose. Of all the acaricides tested, fenazaquin was the most toxic and ethion was the least toxic. General esterases (GEs), glutathione- S-transferase (GST), and cytochrome P450 monooxygenases exhibited a higher activity in mite population from the conventionallymanaged tea plantation as compared with the activity in mites from the organicallymanaged tea plantation. These findings may be helpful in the selection of acaricides and in developing resistance management strategies for an effective management program for this major tea pest.

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