leaf-eating machine that lives in the relative safety of its nest. The
Cuckoo Bird is a common predator, opening the nest with its
bill and dining on the occupants.
Here many dozens of caterpillars can be seen inside the nest. In the Northern
USA, they develop late in the season when deciduous leaves will soon be
shed naturally, but the nest tends to remain as an unsightly blemish on
the landscape for months.
green tidbit has been devoured on this sapling. Webworms are not very
pests to mature trees, but a sapling or dwarf tree may be stripped of
foliage. They tend to prefer certain species of trees.
as a small silken mass in a limb crotch, much like a Tent
Caterpillar which appears earlier in the year. But the nest is much less dense and durable than
of the Tent
Caterpillar. As the Webworms grow, so does the nest. Silk
will spread out to every chewed leaf and resemble a silken highway on