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Order: Sternorryncha (aphids, whiteflies)

Adult

Small, plump bodied insects with small heads

Immature

Small, plump bodied insects with small heads; nymphs and adults of aphids vary in color from yellow to green to nearly black

Picture	Scientific name	Common name	Description
	-	Aphids	Insects vary in size from 2-4 mm. The color varies from green to black. Nymphs are without, adults with wings. They can vector several plant viruses. Leaves are curled and wrinkled, if infestation is severe plants may die.
	Aphis gossypii	Cotton aphid	They vector several viruses, e.g. cucumber mosaic virus, and watermelon virus. They range in color from yellow to very dark. The wingless female adults have pale legs and black tarsi.
	Bemisia sp.	White fly	Larvae are tine (0.2-0.7 mm) scale-like insects. Adults are yellow/white. Feeding causes chlorotic spots on leaves.
	-	Mealybugs	Scale insects, have often a symbiotic relationship with ants. Adults have glossy white wax threads extend from the body.
Picture	Scientific name	Common name	Description