Conifers have evolved different chemical and anatomical defences against a wide range of
antagonists. Resin ducts produce, store and translocate oleoresin, a complex terpenoid …

Mountain pine beetle (MPB) has recently invaded jack pine forests in western Canada. This
invasion signifies a climate change‐induced range expansion by a native insect. The …

Bark beetles have recently killed billions of trees, yet conifer defenses are formidable and
some trees resist attack. A primary anti-insect defense of pines is oleoresin from a system of …

Host plant secondary chemistry can have cascading impacts on host and range expansion
of herbivorous insect populations. We investigated the role of host secondary compounds on …

The degree to which plant pathogen infestation occurs in a host plant is expected to be
strongly influenced by the level of species diversity among neighbouring host and non‐host …

Interactions between water stress and induced defenses and their role in tree mortality due
to bark beetles are poorly understood. We performed a factorial experiment on 48 mature …

Nonnative insects and pathogens pose major threats to forest ecosystems worldwide,
greatly diminishing the ecosystem services trees provide. Given the high global diversity of …

Pine resin is a highly valuable and sought-after non-timber forest product with multiple uses
in many industrial sectors. Maritime pine (Pinus pinaster Ait.) is the main tapped species in …

Current theory on transmission rates of plant pathogens predicts a strong influence of host
richness on the degree of infection. In addition, identity effects, caused by the presence of …

Dendroctonus ponderosae has killed millions of Pinus contorta in western North America
with subsequent effects on stand conditions, including changes in light intensity, needle …