Sternorrhyncha
(Aphids, whiteflies)
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 craccivora – Cowpea aphid
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.
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.
Larvae are tine (0.2-0.7 mm) scale-like insects. Adults are yellow/white. Feeding causes chlorotic spots on leaves.
Scale insects, have often a symbiotic relationship with ants. Adults have glossy white wax threads extend from the body.