How do you get rid of flies in the garden?

Horticultural oils and insecticidal soaps are products that kill greenfly whereas ladybugs are natural enemies and predators. The insects in question (Aphidoidea superfamily) number among the soft-bodied insects whose immature and mature stages easily can be controlled by home-made soapy water sprays or store-bought insecticidal soaps. The egg stages respond to horticultural oils.