They lay eggs in plant leaves or stems with a saw-like ovipositor. Rose slugs (rose sawflies) - Sawflies are non-stinging wasps ( Hymenoptera) in the suborder Symphyta, not flies ( Diptera).Preferring light-coloured blooms and often appearing in plague numbers, flowers are often left looking scarred, warped, and lustreless. Thrips (order Thysanoptera) – Thrips are slim-winged insects 1 mm in length, resembling fine slivers of wood or rice.Fine webbing and eggs on the undersides of leaves is further evidence of the presence of Tetranychus urticae. Evidence of their presence is silvering of leaves where the mites have destroyed individual leaf cells. ![]() Two-spotted mite (spider-mites or red spider mite) (order Acari: family Tetranychidae) Tetranychus urticae – Previously known as red-spider mite these arachnids prefer the underside of leaves and are difficult to see with an unaided eye.They are particularly damaging to the new shoots with subsequent damage to the emerging leaves which become malformed with much the same appearance as leaf-curl in peaches. In large quantities they may seriously retard the growth of the plant and ruin buds. ![]() Aphids are most active in spring and summer and multiply at a prodigious rate feeding on the sap of the plant by piercing the plant cells via a proboscis. Often green but occasionally light brown, and sometimes with wings, they may cover (in a colony) the complete growing tip of the plant.
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