Ladybird Larvae - The larvae look nothing like their parents, but they have the same appetite for soft bodied garden pests such as greenfly and blackfly. Each larvae will eat large numbers of pests before pupating and emerging as a ladybird. Release ladybird larvae anytime between May and August.
Technical Details
Biological, non chemical control of aphids using ladybirds
Ladybirds can consume 100 greefly per day
Use only when greenfly are present
Can be used indoors, & outdoors when temperatures above 10C