Grey mold of wine grapes

Siva plijesan je jedna od ekonomski najznačajnijih bolesti vinove loze, koja se javlja svake godine u većem ili manjem intenzitetu. Osim na vinovoj lozi javlja se na vrlo velikom broju biljaka. Uzrokuje ju gljivica Botrytis cinerea Pers. koju zbog pojave na velikom broju kultura nazivamo polifagom. Javlja se svake godine te se proizvođačima za njeno suzbijanje preporučuju preventivne mjere kako bi se maksimalno smanjio intenzitet bolesti. Uz te mjere vrše se i obavezna tretiranja fungicidima. Uspješnost borbe protiv ove bolesti ovisi prije svega o vremenskim uvjetima, osjetljivosti sorte vinove loze te o količini zaostalog inokuluma patogene gljive u polju.Grey mold is one of the economically most important diseases of wine grapes which occurs every year in different intensity. Except on wine grapes it can be found on many different cultures. It is caused by fungi Botrytis cinerea Pers. which is considered to be poliphag. Since it can be found every year producers are advised to use preventional measures in order to maximally reduce disease intensity. Together with preventional measures use of pesticides is obligatory. Succesful disease prevention depends on weather conditions, susceptibility of wine grape cultivar and amount of fungal inoculum remaining in the field