Resistance of gooseberry against the american powdery mildew in the Western Lisosteppe of Ukraine

DOI: 10.35205/0558-1125-2023-78-50-55
UDC 632.938:634.726:632

RESISTANCE OF GOOSEBERRY (RIBES UVA-CRISPA L.) AGAINST THE AMERICAN POWDERY MILDEW (SPHAEROTHEKA MORS-UVAE BERK, ET CURT.) IN THE WESTERN LISOSTEPPE OF UKRAINE

O.H. POLGORODNIK, S.I. HRADCHENKO, PhDs
O.P. LUSHPIHAN, Senior Research Worker
S.V. MARTYNENKO, Junior Research Worker
Institute of Horticulture, NAAS of Ukraine, 03027, Kyiv-27,23, Sadova st., e-mail: zax55@i.ua

The conditions of the spread and development of American powdery mildew (Sphaerotheka mors-uvae Berk, et Сurt.) during the 2020-2022 years of research on gooseberry varieties of different resistance are described. It was established that in the conditions of the Western Lisosteppe of Ukraine, the development of American powdery mildew on gooseberries begins in May, and its maximum spread occurs in June. An analysis of the weather conditions of the growing season (April-August) based on three years of observations was carried out. An assessment of 24 gooseberry varieties of the Institute of Horticulture collection was made. The researched varieties are divided into groups of resistance against American powdery mildew. It was established that the Zlatogor, Kameniar, Karat, Kubanets, Malachite, Rodnik, Uralsky, Khreshchenyk, Perlinka, Slyvovy, Chernysh and Chornomor varieties have full and high field resistance. It is expedient to use these varieties as initial forms in purposeful selection for this trait and to grow them in farms of various forms of ownership and in individual gardens. Their cultivation will ensure a reduction of the pesticide load on the environment and save money on processing.
In favorable and epiphytotic years, special attention should be paid to varieties such as Vysoky, Kolobok, Messershkotta, Donetski pervenets, because they have medium and low resistance to American powdery mildew and lov additional treatments against this disease.
Key words: gooseberry, cultivars,  resistance, American powdery mildew, protection system

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