Ege Bölgesi bağ fidanlıklarında görülen Fungal hastalıklar üzerinde araştırmalar.

Abstract

Studies have been carried out in 27 vine nurseries in Izmir, Manisa, Usak, Denizli and Canakkale provinces. Disease incidence and prevalence have been determined in the sandboxes, callus chambers, greenhouses (stocks growing in pots), and fields of these nurseries. Determined pathogens are given below: a) In the sandboxes : Armillaria mellea the agent of Armillaria root-rot disease on the buried cane cluster. b) In the callus chambers : Rhizoctonia solani and Phythium sp. which are causing shoots drying and shoot-rot, Diplodia natalensis producing shoot blight c) In the greenhouses : Botrytis cinerea , the agent of grey mold disease has been found at different rates along with D.natalensis, R.solani , and Phythium sp. d) At field : own-rooted (rootstocks), grafted-rooted, and softwood cuttings ( Vitis vinifera var. sultana ) have been observed at two stages : 1 ) At spring- early summer season : Macrophomina phaseolina , A.mellea, D.natalensis, R.solani , and Phythium sp. 2 ) At fall season : Uncinula necator (Powdery mildew) Plasmopara viticola (Downy mildew), A.mellea, D.natalensis, R.solani , and Phythium sp. have been obtained. On the other hand Verticillium dahliae the agent of Verticillium wilt disease have been obtained on the rootstocks 41-B and R-99.