They feed on the surface cells of leaf tissues, eating their way across the leaf. What they look like Only a few millimetres in length, these small winged insects are found in large numbers. They are very similar to whitefly, but smaller and often have a darker coloured body. The upper surface of leaves are left silvery-white or yellow, with a mottled or blotchy appearance. Occasionally petals are also attacked.
Plants are often affected in the bud stage and distortion of the plant can follow.
Regular watering is also a useful control measure, so check plants daily during hot, dry weather conditions. Their favourite plants Gladioli, iris, privet, roses and peas. Dealing with thrips Search for plants by plant name or sun exposure and soil type. Send your problems to our experts or read their answers to other gardening questions. Read tips from fellow gardeners.