Feeding and oviposition preferences of Monochamus galloprovincialis for certain conifers under laboratory conditions

Feeding and oviposition preferences of Monochamus galloprovincialis (Olivier) (Coleoptera: Cerambycidae: Monochamini), the vector of the pine wilt nematode (PWN), Bursaphelenchus xylophilus (Steiner and Bührer) Nickle (Nematoda: Aphelenchoididae), in Portugal, was studied in three laboratory experim...

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Bibliographic Details
Published in:	Entomologia experimentalis et applicata Vol. 120; no. 2; pp. 99 - 104
Main Authors:	Naves, Pedro Miguel, de Sousa, Edmundo Manuel, Quartau, José Alberto
Format:	Journal Article
Language:	English
Published:	Oxford, UK Oxford, UK : Blackwell Publishing Ltd 01-08-2006 Blackwell Publishing Ltd Blackwell
Subjects:	Animal and plant ecology Animal, plant and microbial ecology Animals Autoecology Biological and medical sciences Bursaphelenchus xylophilus Cerambycidae Coleoptera conifers evolution feeding preferences Fundamental and applied biological sciences. Psychology host plants host preferences hosts insect vectors larval development Monochamus Nematoda oviposition sites pine wilt nematode Pinus Pinus pinaster Protozoa. Invertebrata Pseudotsuga menziesii Xylophilus Portugal Europe Laboratory study Plant pathogen Coleoptera Insecta hosts Pinus evolution Host plant selection pine wilt nematode Cerambycidae Pest Preference Arthropoda Egg laying Gymnospermae Softwood forest tree Helmintha Coniferales Nemathelminthia Spermatophyta Invertebrata Nematoda Vector Bursaphelenchus xylophilus
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Summary:	Feeding and oviposition preferences of Monochamus galloprovincialis (Olivier) (Coleoptera: Cerambycidae: Monochamini), the vector of the pine wilt nematode (PWN), Bursaphelenchus xylophilus (Steiner and Bührer) Nickle (Nematoda: Aphelenchoididae), in Portugal, was studied in three laboratory experiments: an adult feeding preference trial between branches of five pines, a no-choice oviposition experiment on seven conifer bolts, and an oviposition choice trial between maritime pine, Pinus pinaster Aiton, and four other pines, P. pinea L., P. sylvestris L., P. halepensis Miller, or P. radiata D. Don. Scots pine (P. sylvestris) was the pine with the largest bark feeding area, while P. radiata was the least chosen to feed upon. Female M. galloprovincialis laid eggs on P. sylvestris, P. halepensis, P. pinaster, P. radiata, P. pinea, and Pseudotsuga menziesii (Mirbel) Franco, but larvae successfully completed development only on the first four pines. Beetles emerging from maritime pine bolts were slightly bigger than the others. No preference for oviposition was detected when beetles were given the choice between P. pinaster and P. sylvestris or P. halepensis. Inversely, greater oviposition occurred on P. pinaster when compared with P. pinea and P. radiata. Although PWN currently affects only P. pinaster in Portugal, the results on host suitability for M. galloprovincialis suggest that P. sylvestris and P. halepensis are adequate hosts for the insect's feeding and oviposition, and thus may also be PWN hosts in Europe. The systematically high feeding and oviposition attraction for P. sylvestris exhibited by the beetles means that the eventual spread of the PWN to areas where both M. galloprovincialis and P. sylvestris occur may have a significant impact on this widespread and economically important pine, considered to be highly susceptible to B. xylophilus.
Bibliography:	http://dx.doi.org/10.1111/j.1570-7458.2006.00430.x ArticleID:EEA430 ark:/67375/WNG-7T44S9NZ-3 istex:2E262605EBF6F31691A8B4D71791EA4E75BC508F ObjectType-Article-1 SourceType-Scholarly Journals-1 ObjectType-Feature-2 content type line 23
ISSN:	0013-8703 1570-7458
DOI:	10.1111/j.1570-7458.2006.00430.x