Tree's defensive chemistry wins against mountain pine beetle

Tree's sticky sap overwhelms insect

A University of Alberta forestry professor has cracked a key mystery surrounding the mountain pine beetle, the university reports.

After studying lodgepole pine trees in the Grande Prairie area that survived a pine beetle attack, U of A professor Nadir Erbilgin and his team discovered certain chemicals in the trees that produce high levels of resin – sticky sap – that overwhelms the insect.

August 10, 2017 - 13:15