A secondary problem arises from sugary honeydew excreted by the aphids. Also, aphids are able to transmit viral diseases. Aphids normally give birth to living female nymphs. These nymphs can mature and begin reproduction in 7 to 10 days under greenhouse conditions. Each aphid can give birth to 50 to 100 nymphs over a 30 day period.
Winged females appear when overcrowding occurs or food supplies become low.
When cold weather becomes imminent, males and females appear outdoors and mate. Eggs are laid which often overwinter successfully in Oklahoma. Under in-home conditions however, activity is continuous, and overwintering can occur in any stage. Aphids are soft-bodied insects with relatively long legs and antennae. There are winged and wingless forms varying from yellow-green to red to brown depending on the type and time of year observed.