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

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Relation http://ir.cftri.com/8289/
 
Title Repellency of callus derived pyrethrins to mosquito Culex quinquefasciatus Say and red flour beetle Tribolium castaneum Herbst.
 
Creator Rajasekaran, T.
Pereira, J.
Ravishankar, G. A.
Venkataraman, L. V.
 
Subject 10 Plants
05 Insect/Pest Control
 
Description 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).
 
Date 1996
 
Type Article
PeerReviewed
 
Format pdf
 
Language en
 
Identifier http://ir.cftri.com/8289/1/International%20Pest%20Control%20154-.pdf
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.