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Studies on the Sex pheromone of the diamondback moth Plutella xylostella (Lepidoptera: Yponomeutidae) in India

Published online by Cambridge University Press:  10 July 2009

G.V.P. Reddy  and
K.C.D. Urs
G.V.P. Reddy*
Affiliation:
Department of Entomology, University of Agricultural Sciences, Bangalore, India
K.C.D. Urs
Affiliation:
Department of Entomology, University of Agricultural Sciences, Bangalore, India
*
G.V.P. Reddy, Agriculture Research Station, HAGARI-583 138, Bellary District, Karnataka, India.
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Abstract

Marked male moths of Plutella xylostella (Linnaeus) released at up to 12 m from a sticky delta trap baited with synthetic pheromone, were caught in significantly higher numbers than moths released at greater distances, both in downwind and upwind directions, from the traps. Maximum catches were obtained when the traps were set at 30 cm above the crop level. Continued exposure of septa in the field led to a progressive reduction in catches, and catches were significantly reduced after 28 days. Newly emerged virgin female moths attracted significantly more male moths than one day old or older virgin female moths. Five day old virgin females attracted no male moths. When virgin females were used as a bait in the field, the peak catch of males was between 1600 and 1800 h. Tests at two field locations revealed that, at the concentration tested, synthetic sex pheromone attracted a similar number of moths to the number attracted by 10 virgin females in delta traps, and significantly more than 8, or fewer virgin females.

Type
Review Article
Information
Bulletin of Entomological Research , Volume 86 , Issue 5 , October 1996 , pp. 585 - 590
Copyright
Copyright © Cambridge University Press 1996

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