Use of trunk injections for pest control on ornamental trees in Israel.

Abstract

Stem injections of systemic insecticides are the only method used in Israel to control insect pests on ornamental trees, such as the defoliators Thaumetopoea wilkinsoni Tams on pine (Pinus), Xanthogaleruca luteola (Mll.) (Galerucella luteola) on elm (Ulmus), leaf-miners such as Phyllonorycter millierella (Stgr.) (Lithocolletis millierella) on Celtis australis, leaf-sucking insects such as Monosteira unicostata (Muls. & Rey) and phloem-sucking insects such as Phloeomyzus passerinii (Sign.) (both on poplar (Populus)). A modification of the method is used to control the buprestid Steraspis squamosa (Klug) on tamarisk (Tamarix), the injected trees serving as trap-trees for those beetles requiring leaves for maturation feeding.