Causers of dying and decay of cherry tree

Abstract

In all areas of our country it was seen the appearance of decay of cherry tree plantations because of premature dying of trees. Disease is of complex nature, and as causers in literature are quoted different parasites, of which the most attention is payed to fungus Monilinia laxa and verticilium albo-atrum and to bacteria Pseudomonas syringea pv. syringea and Pseudomonas syringea pv. morsptunorum. Although it is about different parasites symptoms which are appeared on cherry are very similar (dying of flowers, leaves, tree and branches cancer and at the end fruit tree dying). In the aim of undertaken the concrete measures of cherry tree dying causers it is necessary to know the etymology of disease. Knowledge of the cycle of parasite development enable to reveal this stages in the development when it is the most susceptible to application of certain measures of protection. Because of this reason in this work are in detail described changes to which bring this mentioned parasites, as well as their cycle of development, timely intervention by the most effective means would contribute to the control of dying causers, and by itself to the increase of cherry production, as well as very esteemed and wanted fruit on a our market. .

U svim područjima naše zemlje zapažena je pojava propadanja zasada trešanja usled prevremenog sušenja stabala. Oboljenje je kompleksne prirode, a kao prouzrokovači u literaturi se navode razni paraziti, od kojih se najviše pažnje poklanja gljivama Monilinia laxa i Verticilium albo-atrum i bakterijama Pseudomonas syringae pv. syringae i Pseudomonas syringae pv. morsprunorum. Iako se radi o različitim parazitima simptomi koji se javljaju na trešnji su veoma slični (sušenje cvetova, listova, rak-rane na stablu i granama i na kraju sušenje voćke). U cilju preduzimanja konkretnih mera suzbijanja uzročnika sušenja trešnje neophodno je poznavati etiologiju bolesti. Poznavanje ciklusa razvića parazita omogućava da otkrijemo one faze u razvoju kada je najosetljiviji na primenu određenih mera zaštite. Iz tog razloga u ovom radu su detaljno opisane promene do kojih dovode pomenuti paraziti, kao i njihov ciklus razvića. Pravovremena intervencija najefikasnijim sredstvima doprinela bi suzbijanju uzročnika sušenja, a samim tim povećanju proizvodnje trešanja, kao veoma cenjenog i traženog voća na našem tržištu. .