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The dispersion of brood galleries of Xyleborus fornicatus Eichh. (Coleoptera, Scolytidae) in tea plants

Published online by Cambridge University Press:  10 July 2009

P. Sivapalan
P. Sivapalan
Affiliation:
Tea Research Institute of Sri Lanka, Talawakele, Sri Lanka
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Abstract

The dispersion and density of brood galleries of the wood-boring ambrosia beetle, Xyleborus fornicatus Eichh., in the tea plant depends on the type of branch (primary, secondary and tertiary) and not on the total available length of branch nor on branch thickness. Within the different branch types, branch lengths and the numbers of galleries contained in them are directly related. Significantly more galleries are formed in the primary branches than in the secondaries, which themselves carry more than the tertiaries. For precise estimation of Xyleborus population density, a stratified sampling system, representing the different branch classes, will be required.

Type
Original Articles
Information
Bulletin of Entomological Research , Volume 65 , Issue 3 , October 1975 , pp. 501 - 506
Copyright
Copyright © Cambridge University Press 1975

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