Leafrollers and leaf
tiers are small caterpillars that use webbing to pull
the sides of leaves together into a roll. They then feed
inside under cover. This gives them protection from
predators including human ones with their spray cans.
Some types of leaf
rollers spend their entire life inside the leaf while
other spend part of their life cycle also chewing on
fruits, buds and flowers. This second type is, of
course, the more destructive form.
They may be controlled
using the same techniques as for treating other caterpillar species.