Botrytis squamosal: Onion (Allium cepa) pathogen

Abstract

Leaf blight disease, caused by Botrytis squamosa, is a serious treat for green onion and bulb production in numerous production regions. The paper summarizes current knowledge about the disease causal agent, symptoms that develop on plants, epidemiology of the disease and the possibilities of control. Survival of the pathogen during winter, inoculum sources, conditions for infection establishment and the development of the disease symptoms are described in detail. In addition, production losses caused by the disease, as well as cultural an chemical control measures are presented.

Pegavost i sušenje lista luka, koju prouzrokuje Botrytis squamosa, predstavlja veliki problem u proizvodnji mladog luka i crnog luka za proizvodnju glavica u većini proizvodnih regiona sveta. U radu su sistematizovana dosadašnja saznanja o prouzrokovaču oboljenja, simptomima koje prouzrokuje na biljkama, epidemiologiji bolesti i mogućnostima suzbijanja. Detaljno je opisano održavanje patogena tokom zime, izvori inokuluma, uslovi za ostvarenje infekcije, razvoj simptoma oboljenja, štete koje prouzrokuje, kao i agrotehničke i hemijske mere suzbijanja.