The occurence of some pests and diseases on horse chestnut, plane tree and Indian bean tree in urban areas of Slovenia | Navzočnost nekaterih škodljivcev in bolezni na divjem kostanju, javorolistni platani in navadnem cigararju v urbanem prostoru v Sloveniji

English. The occurrence of some pests and diseases was monitored on horse chestnut (Aesculus hippocastanum), red horse chestnut (Aesculus x carnea), plane tree (Platanus hybrida) and Indian bean tree (Catalpa bignonioides) in the period 1995-2003. The following organisms were the most common: the horse chestnut leaf-miner (Cameraria ohridella) on horse chestnut and, in recent two years, also on red horse chestnut, the Sycamore lace bug (Corythuca ciliata) and the leaf miner (Phyllonorycter platani) on plane tree. The flatid planthopper (Metcalpha pruinosa) was  found inland, in Ljubljana in 2003  on A. x carnea near a busy petrol station, and on C. bignonioides in the vicinity of a motorway intersection. Along with M. pruinosa, two new parasite fungi for Slovenia were found in 2003 Erysiphe flexuosa on A. x carnea, A. hippocastanum and Erysiphe   elevata on C. bignonioides.

Slovenian. Spremljali smo pojavljanje nekaterih škodljivih organizmov v urbanem prostoru na navadnem divjem kostanju (Aesculus hippocastanum), rdečecvetnem kostanju (Aesculus x carnea), javorolistni platani (Platanus x hybrida) in navadnem cigararju (Catalpa bignonioides) v letih 1995-2003. Pojavljali so se: kostanjev listni zavrtač (Cameraria ohridella) na navadnem divjem kostanju in zadnji dve  leti na rdečecvetnem, čipkarka (Corythuca ciliata) in platanin listni zavrtač (Phyllonorycter platani) na javorolistni platani. Medeči škržatek (Metcalpha pruinosa) je zabeležen  v letu 2003 v Ljubljani na A. x carnea blizu prometne bencinske črpalke in na C. bignonioides v Ljubljani. Skupaj  z vrsto M. pruinosa smo v  letu 2003 prvič na ozemlju Slovenije ugotovili pepelovko Erysiphe flexuosa na  kostanju A. carnea, A. hippocastanum in pepelovko Erysiphe elevata na cigararju C. bignonioides.