Amorbia larvae are green caterpillars about 0.75 to 1 inch long when full grown. A black stripe on the
side of the head and the segment behind distinguishes them from other caterpillars.
Identification of species | Life
Larvae feed on new growth flushes, often rolling or skeletonizing the leaves or tying leaves to fruit
with webbing. Fruit may be scarred. In citrus, feeding on fruit occurs at petal fall. Larvae feed on
the peel of young or maturing fruit under the calyx. Damaged fruit often decays at the feeding site.
Look for webbing and leaf rolls in young foliage and feeding
damage on young and mature fruit on the outside canopy. Hand
remove leafrollers and egg masses. Various natural
enemies attack egg, larval, and
pupal stages of amorbia. Applications of Bacillus
thuringiensis or spinosad may be needed.