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

White pine weevil oviposition holes

White pine weevil egg

Early signs of white pine weevil damage

Wilting and crooknecking of shoots due to white pine weevil

Further wilting and crookneck symptoms on blue spruce

Early and late symptoms of damage on blue spruce due to white pine weevil

Late symptoms of white pine weevil damage

The easily peeled-back bark reveals numerous larvae

White pine weevil larvae under the loose bark

White pine weevil larva

White pine weevil pupal chambers

White pine weevil larva in pupal chamber

White pine weevil larvae in pupal chambers

White pine weevil adults

Page last modified 5/17/13