Powdery mildew fungi in objects of the landscape architecture: features of dissemination, harm and protection of plants

International Jubilee Scientific and Practical Conference "Innovative directions of development of the forestry complex"

生态环境科学

Kochergina, M.^1 ; Priputen, L.^1 ; Machage, K.^2

Voronezh State University of Forestry and Technologies Named after G.F.Morozov, 8 Timiryazeva St, Voronezh

394087, Russia^1

Great Oak Landscaping and Installations Limited, c8 Royal Residency, Rhapta Road, Nairobi

535-00606, Kenya^2

关键词: Causative agents;    Deciduous trees;    Ecological factors;    Introduced species;    Landscape architecture;    Leaves of plants;    Native species;    Preventive action;   

Others  :  https://iopscience.iop.org/article/10.1088/1755-1315/226/1/012070/pdf
DOI  :  10.1088/1755-1315/226/1/012070

学科分类：环境科学（综合）

来源: IOP

【 摘 要 】

It was investigated that the majority of the deciduous trees and bushes applied in gardening of the city territories are in a varying degree stuck by mildew fungi. The infected plants are weakened; lose decorative properties and ability to form an environment. Most often pathogens infect plants of Berberidaceae, Betulaceae, Fagaceae, Hippocastanaceae, Oleaceae, Rosaceae, Salicaceae, Sapindaceae, Ulmaceae families. The species relating of Adoxaceae, Caprifoliaceae, Fabaceae, Malvaceae and Pinaceae families show resistance to this pathology. Causative agents of mildew choose leaves of plants as a nutritious substratum; however, the disease has been noted on sprouts and buds of roses. Native species of trees and bushes are struck by mildew more often than introduced species. Moreover, it is noted the high extent of distribution of the disease on local plants, especially on an oak and a maple. The most struck exotic plants are barberries. The major ecological factors promoting distribution of powdery mildew fungi are insufficient aeration of plantings and low level of insolation. The major preventive action is using of steady species of plants. The immunity of plants to this pathology can be increased by competent use of fertilizers - restriction of nitrogen and timely application of phosphorus and potassium.