Eastern Tent Caterpillar nest on Walnut Tree, Close up, low angle

defoliation bagworms eastern tent caterpillar nest webworm cocoon crop damage pupal web invasive tree nature bugs colony worm eye view thread damage caterpillar leaves fall forest mottephobia environmental malacosoma americanum insect larva destruction closeup silken toxic silk close up low angle urticate walnut aposematic creepy pest autumn moth distasteful natural light canadian communal blue sky irritant white striped