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Inter‐tree distribution of the spruce web‐spinning sawfly, Cephalcia abietis, at endemic density

Inter‐tree distribution of the spruce web‐spinning sawfly, Cephalcia abietis, at endemic density 1 The spatial distribution of forest defoliating insects at endemic density is a generally little known aspect of pest biology, which may have some importance in monitoring and prediction of outbreaks. In a natural spruce stand in Northern Italy it was possible to detect the presence of some species of web‐spinning sawflies (Cephalcia spp.) at endemic density. This was done over a 3‐year period by using trapping devices for both adults and larvae, including a trap which intercepted adult females climbing the trunk. Traps were operated on eight sample trees with signs of defoliation of the previous year (focal trees) and on 14 trees lacking signs of larval feeding (neighbour trees). http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Agricultural and Forest Entomology Wiley

Inter‐tree distribution of the spruce web‐spinning sawfly, Cephalcia abietis, at endemic density

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References (65)

Publisher
Wiley
Copyright
Copyright © 2000 Wiley Subscription Services
ISSN
1461-9555
eISSN
1461-9563
DOI
10.1046/j.1461-9563.2000.00078.x
Publisher site
See Article on Publisher Site

Abstract

1 The spatial distribution of forest defoliating insects at endemic density is a generally little known aspect of pest biology, which may have some importance in monitoring and prediction of outbreaks. In a natural spruce stand in Northern Italy it was possible to detect the presence of some species of web‐spinning sawflies (Cephalcia spp.) at endemic density. This was done over a 3‐year period by using trapping devices for both adults and larvae, including a trap which intercepted adult females climbing the trunk. Traps were operated on eight sample trees with signs of defoliation of the previous year (focal trees) and on 14 trees lacking signs of larval feeding (neighbour trees).

Journal

Agricultural and Forest EntomologyWiley

Published: Jan 1, 2000

Keywords: ; ; ; ; ;

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