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TEMPORAL AND SPATIAL ARRIVAL PATTERNS OF IPS PLASTOGRAPHUS MARITIMUS (COLEOPTERA: SCOLYTIDAE) AND ITS INSECT ASSOCIATES ON FRESHLY FELLED PINUS RADIATA IN CALIFORNIA

Published online by Cambridge University Press:  31 May 2012

C. P. Ohmart  and
W. G. Voigt
C. P. Ohmart
Affiliation:
CSIRO Division of Forest Research, Canberra. A.C.T.2600
W. G. Voigt
Affiliation:
University of California, Division of Biological Control, Albany, California 94706
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Abstract

The temporal and spatial arrival patterns of Ips plastographus maritimus and some of its important insect associates on freshly felled Pinus radiata within the native stands of California was studied. A total of 36 insect species was collected on sticky traps placed along tree boles for 85 days after felling. These species were placed in one of four chronological groups: (I) insects initially attacking the phloem–cambium region; (II) initial predators; (III) secondary xylophagous insects and secondary predators; (IV) parasites. Only four species showed distinct spatial arrival patterns along the tree bole.

Résumé

Les patrons temporel et spatial d'arrivée d'Ips plastographus maritimus et de certains insectes associés sur du Pinus radiata fraichement abattu ont été suivis dans les boisés indigènes de la Californie. Un total de 36 espèces d'insects ont été capturées sur des pièges collants placés le long des troncs pendant 85 jours après l'abattage. Ces espèces ont été classifiées en quatre groupes chronologiques : (I) insectes attaquant initialement la région du phloème–cambium (II) prédateurs primaires (III) xylophages secondaires et prédateur secondaires (IV) parasites. Quatre espèces seulement ont montré des patrons d'arrivée définis le long du tronc des arbres.

Type
Articles
Information
The Canadian Entomologist , Volume 114 , Issue 4 , April 1982 , pp. 337 - 348
Copyright
Copyright © Entomological Society of Canada 1982

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