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Tomato
> Year-Round IPM Program > Bloom > Identifying
Whiteflies
Tomato
Identifying Whiteflies
On this page
- Sweetpotato whitefly pupae
- Sweetpotato whitefly adult
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- Greenhouse whitefly with nymphs
- Greenhouse whitefly adult
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- Bandedwing whitefly pupae
- Bandedwing whitefly adult and nymphs
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It is important to distinguish between sweetpotato whiteflies
which cause the most serious damage to tomatoes and other whiteflies.
You can distinguish between sweetpotato whiteflies and greenhouse
whiteflies by examining fourth-instar nymphs with a hand lens.
Fourth-instar nymphs of greenhouse whiteflies have long waxy
filaments around the edge of their bodies, whereas those of sweetpotato
whitefly do not. It is possible that you may also see bandedwinged
whiteflies. Use the photos below to help you with your identification.
Names link to more information on identification and management.
Click
on photos to enlarge
Sweetpotato whitefly pupae
Nymphs are convex or rounded in profile. From above they are
oval, whitish, soft and unlike 4th instar greenhouse whitefly
nymphs, do not have filaments.
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Sweetpotato whitefly
adult
Adults hold their wings rooflike over their bodies. The
wings do not meet in the back as they do in greenhouse whitefly
adults, but have a slight space between them.
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Greenhouse whitefly with
nymphs
Nymphs
are elevated in profile with edges perpendicular like a
cake or hat box. They have many long waxy filaments around
the edge of their bodies.
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Greenhouse whitefly adult
Adults
are very similar in appearance to silverleaf whitefly adults,
but hold their wings flatter over the back with no space
between the wings where they meet in the center.
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Bandedwinged whitefly pupae
Nymph
filaments are not as long as those of the greenhouse whitefly.
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Bandedwinged whitefly adult
and nymphs
Adults have brownish bands across their wings.
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