Occurence of broad bean rust (Uromyces viciae-fabae) in 2015

Abstract

Broad bean (Vicia faba L.) is an important grain legume, used in human and animal nutrition, stewed or fresh. It is one of the oldest domesticated vegetable species. In our country today, it is grown on small areas or fields, mostly for household needs. Given the low prevalence of broad beans, data about the causes of this species diseases are scarce. In 2015, the medical examination of crops on a test field of the Institute of Field and Vegetable Crops, Novi Sad showed the presence of pustules on leaves, initially at the end of May, as well as on the broad bean tree later on, in June. The microscopic analysis of the pustules' content showed dark orange uredospores, typical for pathogenic fungi from the group of rust causing agents. Multiple secondary diseases were established after monitoring the disease till the end of the broad bean vegetation.

Bob (Vicia faba L.) je važna zrnena mahunarka, mada više u svetu nego kod nas. Upotrebljava se za ljudsku ishranu kao varivo ili u svežem stanju, ali i kao stočna hrana. Među najstarijim je gajenim biljnim vrstama. Danas se u našoj zemlji gaji na malim površinama i okućnicama, prevashodno za potrebe domaćinstva. S obzirom na malu rasprostranjenost boba, ne postoji mnogo podataka o prouzrokovačima oboljenja na ovoj vrsti. Zdravstvenim pregledom useva na oglednom polju Instituta za ratarstvo i povrtarstvo u Novom Sadu, tokom 2015. godine, zabeležena je pojava pustula prvo na listovima boba, krajem maja, a potom i na stablu tokom juna. Analizom sadržaja pustula, mikroskopiranjem, utvrđene su tamno-narandžaste uredospore, karaktristične za patogene gljive iz grupe prouzrokovača rđa. Praćenjem oboljenja do kraja vegetacije boba, utvrđeno je više sekundarnih zaraza.