b'Plant lice Test centre HoogstratenPlant lice live on plant juices and exude honeydew. As they suck plant juices, leaf deformations and sometimes fruit deformations are caused. Besides, some lice pass on viruses. The strawberry aphid and the shallot aphid are the major plant lice species, occurring on strawberries. Both species pass on virus diseases. Plant lice are having many natural enemies. The best-known are: ladybirds, lacewings, syrphus ribesii, earwigs and ichneumon flies.Strawberry aphid - (Chaetosiphon fragaefolii) -The strawberry aphid is a small whitish green louse, which exclusively occurs on strawberries. The club-shaped hair on the back of this plant louse species can be easily observed under a magnifying glass. Besides, its dark eyes are conspicuous. There are several generations per year.96'