Pinus @en

Through research conducted on young Scots pine trees and Diprion pini, a sawfly common to conifer forests in the Northern Hemisphere, scientists have shown, for the first time, how trees take steps to protect themselves against insect infestation even before eggs are laid on them.

According to a study published recently in the journal PNAS, climate change has caused forests to alter the way they grow, in that they only take advantage of the fertilizing effect of carbon dioxide (CO₂) to grow faster if they have plenty of water.