description Spruce budworm Overview
The spruce budworm is a moth species, Choristoneura fumiferana, in the tortricid family. It is native to North America and its larvae feed on the new foliage of spruce and fir trees, although other conifers and deciduous trees may also be used. Repeated or severe outbreaks can defoliate large areas of boreal and mixed forests, making the species an important forest pest.
help Spruce budworm FAQ
What is the spruce budworm?
The spruce budworm is the moth species Choristoneura fumiferana in the tortricid family. It is native to North America and is known for feeding on conifer foliage.
Which trees do spruce budworm larvae attack?
The larvae feed mainly on the new foliage of spruce and fir trees. They may also use other conifers and some deciduous trees.
Why are spruce budworm outbreaks damaging?
Repeated or severe outbreaks can strip trees of new foliage and weaken forest stands. The damage is caused mainly by the feeding larvae, not by adult moths.
Is the spruce budworm native to Europe?
No. Choristoneura fumiferana is native to North America. Its main host trees include spruce and fir in North American forests.
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