Fruit trees rust: genus Gymnosporangium pathology spread and host plants of the pathogens

Phytopathological examination of orchards various forms ownership reveal that every year the rust pip fruit trees has become widespread and reached its epiphytosis. In 2008, we detected symptoms on in form single yellow spots pear leaves different ages ownership. The identifcation found fungus Gymnosporangium sabinae G. Winter, (1882) (syn. fuscum DC. (1805)) was causative agent rust. prevalence pathology insignifcant within 3–5 %. Every percentage spread development had been increasing 2021 it amounted to 55-75% 4-5 points, respectively. Symptoms lesion were observed leaves, young shoots fruits. Microscopic studies several species pathogens genus Gymnosporangium, namely dobrozrakovae Mitrof., confusum Plowr., dominated by Winter pathological complex affected organs there are. 2012, apple tree spots, with a 3 established fungi tremelloides Hartig Mitrof. agents leaf are having signifcant dominance. 2021, this ranged 25–30 % 2–3 collection fund Botanical Garden BNAU section Angiosperms is represented one Cydonia Mill C. oblonga Mill. 2018, noted few small quince caused pathogen Plowr. microscopic analysis Juniperus L. signs involved four which Seven ecological niches for pear, quince, communis – Hartig, excels Wint., J.foetidissima Wint. J. oxycedrus phoenicea sabina - macropoda Кey words: trees, rust, agent,