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Repellency of callus derived pyrethrins to mosquito Culex quinquefasciatus Say and red flour beetle Tribolium castaneum Herbst.

Rajasekaran, T. and Pereira, J. and Ravishankar, G. A. and Venkataraman, L. V. (1996) Repellency of callus derived pyrethrins to mosquito Culex quinquefasciatus Say and red flour beetle Tribolium castaneum Herbst. International Pest Control, 38 (5). pp. 154-156.

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Abstract

The repellent and knock-down (KD) properties of pyrethrins obtained from 3-week-old leaf callus cultures of Chrysanthemum cinerariifolium [Tanacetum cinerariifolium] and naturally derived standards were compared. With 3-day-old female Culex quinquefasciatus, the time taken for 50% repellency was the same in callus prepared samples and the standard. The standard was slightly superior in achieving 95% repellency. The time taken for 95% repellency and KD was the same for each extract, indicating a correlation between the upper limits of repellency and KD. KD insects did not recover within 24 h. Extracts applied at 1 ppm to wheat grain exhibited similar repellency to 2- to 3-week-old Tribolium castaneum. The chemical parameter important for biological activity, the pyrethrin I/II ratio was approximately the same in the standard and extract (1.44 and 1.48, respectively).

Item Type: Article
Uncontrolled Keywords: callus-; pyrethrins-; botanical-insecticides; insecticidal-plants; insecticidal-properties; stored-products-pests; insect-repellents; mosquito-coils; extracts-; plant-extracts; repellents-; toxicity-; wheat-; products-; pesticidal-plants; stored-products; agricultural-entomology
Subjects: 500 Natural Sciences and Mathematics > 10 Plants
600 Technology > 03 Agriculture > 05 Insect/Pest Control
Divisions: Food Protectants and Infestation Control
Plant Cell Biotechnology
Depositing User: Food Sci. & Technol. Information Services
Date Deposited: 26 Feb 2018 04:44
Last Modified: 24 Sep 2018 11:02
URI: http://ir.cftri.com/id/eprint/8289

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