close-up of a spruce branch infected with galls of adelgidae

spruce gall branch adelgidae insect aphids microscopic needle pathology infection nature infestation plant disease tree pest twig coniferous forest summer damage die grow green copy space background dead danger closeup fauna parasite bug fragility season early leaf deforestation evergreen botany detail springtime host blur flora ailment alive feeding biodiversity view close-up infected galls young blurred background live trees selective focus