Phytosanitary diagnostics of apple powdery mildew, Podosphaera leucotricha and apple scab, Venturia inaequalis
Galymbek K. Madenova A. Bakirov S. Tastanov Y. Ualiyeva R. Zhangazin S. Arystanova S. Seilkhan A.
October 2025University of Guilan
Caspian Journal of Environmental Sciences
2025#23Issue 4885 - 891 pp.
The article presents the results of phytosanitary monitoring of apple orchards in the Almaty region, Kazakhstan conducted in 2023. The aim of the study was to determine the distribution and development level of major fungal diseases of apple trees – scab, Venturia inaequalis and powdery mildew, Podosphaera leucotricha – under the conditions of Southern and Southeastern Kazakhstan. Surveys were carried out in the orchards of “Koram” farm (Koram village, Enbekshikazakh district), where nine apple cultivars (Gala, Fuji, Golden Delicious, Quinti, Red Delicious, Shaphida, Korean, and Stark Earliest) were grown on an area of 110 ha. For the phytosanitary assessment, 95–100 trees of each cultivar were examined, and 2500–3000 leaves per cultivar were analyzed. The results revealed cultivar-specific susceptibility to fungal pathogens. Scab infection was recorded in Gala, Golden Delicious, and Stark Earliest (15.0–22.0% prevalence with a low development level of 0.4–1.3%). Symptoms of powdery mildew were observed in Gala, Fuji, Golden Delicious, and Red Delicious, where the prevalence reached 30.0–33.3%, while the disease development remained weak (0.3–1.5%). No symptoms of either disease were detected in the Quinti, Shaphida, and Korean cultivars. Thus, Gala, Golden Delicious, and Red Delicious were identified as the most susceptible cultivars, whereas Quinti, Shaphida, and Korean demonstrated relative resistance to scab and powdery mildew. The findings confirm the necessity of systematic phytosanitary monitoring of orchards and may serve as a scientific basis for breeding programs and for the introduction of resistant apple cultivars in the southern regions of Kazakhstan.
Apple (Malus domestica) , Cultivar resistance , Phytosanitary monitoring , Powdery mildew (Podosphaera leucotricha) , Scab (Venturia inaequalis)
Text of the article Перейти на текст статьи
Abai Kazakh National Pedagogical University, Dostyk st.13, Almaty, 050010, Kazakhstan
Kazakh Fruit and Vegetable Research Institute, Gagarin st. 238/5, Almaty, 050060, Kazakhstan
Central Asian Innovative University, Madeli khozha st. 137, Shymkent, 160023, Kazakhstan
Toraighyrov University, Lomov st.46, Pavlodar, 140008, Kazakhstan
L.N. Gumilyov Eurasian National University, Satpaeva st. 2, Astana, 010008, Kazakhstan
M. Auezov South Kazakhstan University, Tauke Khan st.5, Shymkent, 160009, Kazakhstan
Biomedical Research Centre, Al-Farabi Kazakh National University, al-Farabi Ave 71, Almaty, 050040, Kazakhstan
Abai Kazakh National Pedagogical University
Kazakh Fruit and Vegetable Research Institute
Central Asian Innovative University
Toraighyrov University
L.N. Gumilyov Eurasian National University
M. Auezov South Kazakhstan University
Biomedical Research Centre
10 лет помогаем публиковать статьи Международный издатель
Книга Публикация научной статьи Волощук 2026 Book Publication of a scientific article 2026