Journal ArticleDOI
Clove Oil Efficacy on the Red Spider Mite, Oligonychus coffeae Nietner (Acari: Tetranychidae) Infesting Tea Plants
Archita Barua,Somnath Roy,Gautam Handique,Foridur Rahman Bora,Azizur Rahman,Dwiban Pujari,Narayanannair Muraleedharan +6 more
- Vol. 70, Iss: 1, pp 92-96
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TLDR
Certain concentrations of clove oil have been proved effective against adult mites and rate of deposition of eggs by mites on treated leaf surfaces as well as the viability rate of eggs decreased significantly.Abstract:
The tea red spider mite, Oligonychus coffeae Nietner (Tetranychidae), is an economically important pest of agricultural and ornamental crops and considered one of the major pests of tea plants in North-east India. In view of increasing resistance recorded in insect and mite pests against pesticides, a study was conducted to determine the acaricidal, antiovipositional, repellent and ovicidal activities of clove oil (an essential oil from the clove plant, Syzygium aromaticum L. Merr. & Perry: Myrtaceae) against tea-red-spider-mite. Mortality of O. coffeae varied with the concentrations and the duration of exposure time of the mites after application of oil. Rate of deposition of eggs by mites on treated leaf surfaces as well as the viability rate of eggs decreased significantly. In addition, certain concentrations of clove oil have been proved effective against adult mites.read more
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Journal ArticleDOI
Use of plant extracts for tea pest management in India
Somnath Roy,Gautam Handique,Narayanannair Muraleedharan,Kavya Dashora,Sudipta Mukhopadhyay Roy,Ananda Mukhopadhyay,Azariah Babu +6 more
TL;DR: There is an increasing need of regulatory authority and national norms in India to facilitate the simplified and trade friendly registration procedures with quality assurance of the products, and the application of plant extracts with insecticidal properties provides an alternative to the synthetic pesticides.
Journal ArticleDOI
Ecologically controlling insect and mite pests of tea plants with microbial pesticides: a review
TL;DR: Overall, this review has provided the basic and integrative information on the integrated pest management (IPM) tool(s) that can be utilized towards successful control of the aforementioned insect and mite pests.
Journal ArticleDOI
Exploring tea (Camellia sinensis) microbiome: Insights into the functional characteristics and their impact on tea growth promotion.
TL;DR: In this article, the authors highlight the importance of microbes derived from cultivated and natural tea rhizospheres to understand the role of AMF and rhizosphere bacterial population to improve plant growth, enhancement of tea quality, and protecting tea plants from pathogens.
Journal ArticleDOI
A Literature Review of Biological and Bio-Rational Control Strategies for Slugs: Current Research and Future Prospects.
TL;DR: In this article, the three main biological control agents of slugs, namely nematodes, carabid beetles and sciomyzid flies, and various promising bio-rational slug control strategies are integrated.
Journal ArticleDOI
Toxicity of essential oils to slug parasitic and entomopathogenic nematodes
Archita Barua,Kerry-Lyn McDonald-Howard,Rory J. Mc Donnell,Robbie Rae,Christopher D. Williams +4 more
TL;DR: Some oils which are not toxic to beneficial nematodes but may affect their behaviour are highlighted, and it is recommended that the effects of essential oils be tested on beneficial organisms in ecosystems before choices are made over which oils should be used.
References
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Journal ArticleDOI
A method of computing the effectiveness of an insecticide
TL;DR: In order to make experimental studies comparable and statistically meaningful, the article recommends the following formula: per cent control = 100(X - Y)/X, which eliminates errors due to deaths in the control sample which were not due to the insecticide.
Journal ArticleDOI
Plant essential oils for pest and disease management
TL;DR: The range of biological activities of essential oils and their constituents is reviewed, their toxicity and proposed mode-of-action in insects; their potential health and environmental impacts as crop protectants; and commercialization of pesticides based on plant essential oils are reviewed.
Journal ArticleDOI
Environmental and Economic Costs of Pesticide Use
David Pimentel,H. Acquay,M. Biltonen,P. Rice,M. Silva,J. Nelson,V. Lipner,S. Giordano,A. Horowitz,M. D'Amore +9 more
TL;DR: Estimates are that losses to pests would increase 10% if no pesticides were used at all; specific crop losses would range from zero to nearly 100%.
Journal ArticleDOI
Eugenol--from the remote Maluku Islands to the international market place: a review of a remarkable and versatile molecule.
TL;DR: Eugenol is considered safe as a food additive but due to the wide range of different applications, extensive use and availability of clove oil, it is pertinent to discuss the general toxicity with special reference to contact dermatitis.
Journal ArticleDOI
Compounds from Syzygium aromaticum possessing growth inhibitory activity against oral pathogens
Lining Cai,Christine D. Wu +1 more
TL;DR: A crude MeOH extract of Syzygium aromaticum (clove) exhibited preferential growth-inhibitory activity against Gram-negative anaerobic periodontal oral pathogens, including Porphyromonas gingivalis and Prevotella intermedia.