Coniferous Plant Diseases
In recent years, conifers have become widespread both in the landscape design of city parks, squares, streets, and summer cottages. Probably a significant share in the preference for deciduous crops to conifers belong to their year-round attractiveness, harvesting fallen leaves and a misleading opinion about the absence of diseases in conifers. This is the main mistake of gardeners who decided to replace or significantly replenish the landscape with coniferous crops. Almost at the dacha plot, all kinds of conifers can grow. But today, southerners also decided to fill the urban recreation areas and adjoining areas with these attractive cultures. First, you need to get acquainted with the catalog of conifers and choose species that easily adapt to the environment and can take root in new conditions for them. Conifers in an unusual environment take root heavily, lose their immunity and easily become infected with infectious diseases (rot, dew, fungal and bacterial infections). Therefore, in the early years (5-7 years) they need comprehensive and very thorough care. If the optimal conditions are created for the conifers in the country, but they still have a sick look (they do not grow, separate branches dry or the whole tree, etc.), you must immediately determine the type of damage that can be divided into 2 groups:
- Non-infectious causes of the disease.
- Infectious diseases.
Non-Communicable Diseases of Conifers
Noncommunicable diseases can be caused by the following:
- low-quality planting material,
- mechanical injuries of a seedling,
- undeveloped root system
- lack of certain nutrients
- sunburn in the spring sun, when the roots are not yet functioning in cold soil,
- spring frosts causing cracking and drying of the bark,
- excess moisture (even stagnation of water) of the root system and others.
This type of “disease” is not transmitted to other seedlings and can be corrected in the process of caring for plants. After all the procedures, it is useful to treat such seedlings and adult plants with biological preparations. This will increase the resistance of plants to adverse environmental factors and errors in care. Of the drugs, one can recommend rootin, extra athlete, zircon, epin maxi and other modern biologically active drugs that are safe for human and animal health.
Infectious Diseases of Conifers
Infectious diseases are diseases that can be transmitted naturally or artificially to other plants. Such diseases include soil-borne fungal and bacterial diseases (Fusarium and root rot, alternations, mold, infectious drying of branches, rust, cancer, and others). The above diseases are characteristic of fruit and other broad-leaved crops and can affect conifers. But conifers have diseases that are characteristic only for this type of vegetation. This is shute (brown, snowy, present). The causative agent of the disease is some types of ascomycetes fungi that invade coniferous wood and cause the death of plants.