Diseases Of Decorative Coniferous Species In Urban Environments Uzbekistan

The article discusses the development and manifestation of non-infectious and infectious diseases of decorative coniferous species in the urban conditions in Uzbekistan. Decorative coniferous plants in urban plantings are most susceptible to nonparasitic diseases associated with adverse weather, climate and anthropogenic factors (industrial and trucking pollution), as well as the violation of farming techniques. Among the registered diseases, the wilt is the most common in the nurseries, and in plantations, there were: infectious dying of shoots (Diplodiosis, Fomosis, Alternaria), less often resinous cancer, rust of shoots and rarely shutte decease (fungal diseases of coniferous trees). These diseases lead to a significant loss of ornamental of plants, a general weakening, a reduction in the duration of life.

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