Posted: 08/04/2015 at 17:07
Sap-sucking aphids cause the leaves of currant bushes to become distorted, with raised, puckered areas and patches of yellow-green or red. Organic
If the symptoms were evident last summer, in winter get rid of the eggs by spraying plants with an enzyme wash, which will quickly dissolve them. Chemical
In spring, spray plants with the systemic insecticide pyrethrum to kill the emerging aphids. Don't wait for the symptoms to appear, as there's no point in spraying once the leaves have become puckered.