Blackfly and Greenfly (aphids) are very common sap feeding pests affecting nearly all types of plants. Colonies are visible around new buds or shoots in spring onwards. Leaves may twist or yellow and become puckered and distorted as they develop. Sticky honeydew can cause subsequent growth of black Sooty Mould, especially under damp conditions. Product solution: Provado Ultimate Bug Killer Concentrate 2 , Sprayday Greenfly Killer, Provado Ultimate Fruit and Vegetable Bug Killer Ready To Use/Concentrate, Organic Bug Free, Natria Bug Control, Provado Vine Weevil Killer 2, Multirose Concentrate 2, Bug Killer & Disease Control.
Cultural control: Encourage birds into the garden to feed on the aphids ie Blue Tits.
As a useful preventaive and monitoring aid use Greenhouse Flycatchers wherever possible.