Aphids
by aphids in tomato in this way, as is the cucumber mosaic virus (CMV) in cucumber. How to prevent aphids To prevent aphid infestations in crops, you [...] a low protein content but is rich in sugars. Aphids therefore need to extract large quantities of sap in order to get sufficient protein. As a consequence [...] Aphids are slow-moving and tend to cluster on the undersides of leaves, where they feed on plant sap. They may also be found on stems, buds, flowers and fruit