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The impact of host plant species on the larval development of the large pine weevil Hylobius abietis L.
Author(s) -
Thorpe K. V.,
Day K. R.
Publication year - 2002
Publication title -
agricultural and forest entomology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.755
H-Index - 55
eISSN - 1461-9563
pISSN - 1461-9555
DOI - 10.1046/j.1461-9563.2002.00144.x
Subject(s) - corsican , biology , larch , botany , larva , weevil , larix kaempferi , host (biology) , pinus <genus> , ecology , philosophy , linguistics
1 The developmental performance of the large pine weevil Hylobius abietis was studied in the laboratory on four species of conifer, Corsican pine Pinus nigra var. maritima , Sitka spruce Picea sitchensis , Douglas‐fir Pseudotsuga menziesii and Japanese larch Larix kaempferi . 2 All species supported development, but, there was considerable variation in larval mortality, development time and weight of adults on emergence between host species. 3 Levels of mortality were highest in Japanese larch (77%) and lowest in Corsican pine (8.2%), and the heaviest adults emerged from Corsican pine (130 mg) and the smallest from Douglas‐fir (74 mg). 4 A constitutive plant defence chemical, lignin, found to vary within a northern provenance of Sitka spruce, also strongly affected larval development. 5 The significance of these findings is discussed in relation to the management of H. abietis .