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branch and twig borer
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dogwood sawfly New
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European shot-hole borer
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honeylocust pod gall midge
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Pacific flatheaded borer
pear leaf-curling midge
pine needle scale
poplar and willow borer
rose curculio weevil
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scale NEW
sequoia pitch moth
spittlebug
tent caterpillars NEW
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viburnum leaf beetle
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White pine weevil

The white pine weevil, Pissodes strobi, is a key pest in conifer production. This is primarily due to its damage to the terminal of conifers causing flagging and dieback.

 

White pine weevil. USDA Forest Service Forest Insect & Disease Leaflet 21. A very thorough presentation on the biology, ecology, and management of white pine weevil with good images. The emphasis is silviculture but much pertains to nurseries.

The White Pine Weevil Homepage. Natural Resources Canada

White Pine Weevil Fact Sheet. Penn State Woody Ornamental Integrated Pest Management

White Pine Weevil from OSU Extension

Early signs of white pine weevil damage
white pine weevil damage
Photo: Rosetta
Wilting and crooknecking of shoots due to white pine weevil
white pine weevil damage
Photo: Rosetta
Further wilting and crookneck symptoms on blue spruce
white pine weevil damage
Photo: Rosetta
Early and late symptoms of damage on blue spruce due to white pine weevil
white pine weevil Photo: Rosetta
Late symptoms of white pine weevil damage
late symptoms of white pine weevil damage
Photo: Rosetta
The easily peeled-back bark reveals numerous larvae
white pine weevil larvae
Photo: Rosetta
White pine weevil larvae under the loose bark
white pine larvae
Photo: Rosetta
White pine weevil larva
white pine weevil larva
Photo: Rosetta
White pine weevil pupal chambers
white pine weevil pupal chambers
Photo: Rosetta
White pine weevil larva in pupal chamber
white pine weevil in pupal chamber
Photo: Rosetta
White pine weevil larvae in pupal chambers
white pine weevil in pupal chambers
Photo: Rosetta
 
Website editor:
Robin Rosetta

Page last modified 7/10/07

 

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