PLANT PROTECTION 1 – Pests, Diseases and Weeds

PLANT PROTECTION 1 – Pests, Diseases and Weeds
Rasping and sucking damage
Fig. 24. Greenhouse thrips injury to the leaves of viburnum
(Viburnum tinus) showing silvering of leaves and spots of dark
excreta mainly on the undersurface. PhotoCIT, Canberra (P.W.Unger).
Fig. 25. Onion thrips injury to onion leaves.
PhotoCIT, Canberra (P.W.Unger).
Fig. 26. Thrips in dahlia flowers.
PhotoCIT, Canberra (P.W.Unger).
Natural size about 1 mm long.
Fig. 27. Callistemon leaf-rolling
thrips injury to Callistemon leaves.
PhotoCIT, Canberra (P.W.Unger).
Insects and allied pests - Plant damage 33