Insect pests on conifers in Eastern Canadian forests are moving north

The spruce budworm, the main defoliator of conifer trees in Eastern North American boreal forests, is spreading northwards, and climatic factors seem to trigger and synchronize major outbreaks. These results are revealed in a recent reconstruction of the outbreak history of this species in Quebec during the last century, based on a dendroecological approach, i.e. … Read more