
_____________________________________________________________________
This leaflet is produced by the Ministry of Agriculture & Livestock, Solomon Islands, with support from IPPSI:
Improved Plant Protection in Solomon Islands, a project financed by ACIAR, the Australian Centre for
International Agricultural Research, Canberra. Authors: Helen Tsatsia, MAL & Grahame Jackson, TerraCircle Inc.
Farmer Fact Sheet 25:
Spiraling Whitefly
What is it?
It is a small insect that sucks the
juice from plants. It looks like a
small white butterfly or moth, but it
belongs to a different group. And it
is not a fly.
The whitefly feeds and breeds on
many plants, including banana,
capsicum, cassava, citrus, custard
apple, eggplant, guava, mango,
papaya, taro, tomato, ornamentals,
shade trees and weeds. The
scientific name is Aleurodicus.
What damage does it do?
The young and adults have long thin mouthparts, and use
them to suck the juices from the leaves.
Damage occurs in two ways: first, the whiteflies feed on
the leaves sucking their juices, and the leaves die early;
second, fungi called sooty moulds grow on the honeydew - sugary substances that
come out of whiteflies as they feed; the leaves turn black, and do not get enough
sunlight, and growth is poor.
How do I identify it?
When female whiteflies lays eggs, they make spiraling patterns on the under surface
of leaves (photo, top); these patterns give the insect its name. Also, look for adults on
the undersides of leaves (photo, lower). They are small, white and like small moths.
Look for the whiteflies in the morning and evening. The whiteflies can be seen flying
in large circles around their host plants. They can be made to fly by shaking the plant,
and then they resettle quickly.
How do I manage spiraling whitefly?
A tiny wasp, too small to be seen by your eye, usually controls the whitefly. It lays its
eggs inside the young whiteflies, killing them. Lacewings and ladybird beetles attack
all stages. Usually, you have to do NOTHING, as natural control is excellent.
• DO NOT use insecticides. If you do, you will kill the tiny wasps and other insects
that control the whiteflies, and make the situation worse;
• Also, if you do use insecticides, you might find that after a while they do not work
as the whitefly has become resistant to them.