Jack pine resin midge
Damage, symptoms and biologyReddened annual shoots with resin drops at their base point to the presence of the jack pine resin midge. The larvae feed on the resin drops and damage young tissues, killing the annual shoots. Severe attacks can kill young jack pines.
The partially grown larvae overwinter in masses of resin on twigs, where they change into pupae in early spring.
Life cycle (East of the Rockies)
Other informationAnnual outbreaks of the jack pine resin midge have occurred in Canada since 1963, mainly affecting plantations in central Quebec and south central Ontario, along with natural stands in western Quebec. Today, the insect occasionally appears in seed orchards as well.In the Prairie provinces, it has caused damage to trees already weakened by Jack pine budworm.
The species can be controlled on isolated trees and in plantations by pruning affected shoots. It is important to remove the sections with resin and to burn all of the material.
Canadian Forest Service Publications
Diet and feeding behaviour
: Feeds on phloem.
- Gall-forming: Induces the formation of galls and feeds on their tissues.
Information on host(s)
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