Infectious diseases of roses.
Roses are more resistant to disease at an optimal location of the rosary and the proper care of the plants. However, infectious diseases are not covered by even the hardiest varieties of roses, carefully grown in good soil.
Occurrence of diseases in roses contribute adverse weather conditions (eg, wet summer or prolonged dry and hot period), low light, dense plantation and poor ventilation of the rosary, mechanical damage to plants and others.
By infectious affections roses include bacterial, viral and fungal diseases. Bacteria enter the plant through the stomata, through wounds in the bark; they cause staining and rotting tissue, wilting shoots. Viruses spread from sick planting material is transferred from plant to plant pests or with contaminated garden tools.
Mushrooms onto the fabric of a healthy plant and germinate in it, forming a mycelium; fungal diseases on roses occur more frequently than others. Reduce the risk of infectious diseases selection of a suitable location for the rosary and proper care for roses, pest control, fertilizing roses essential trace elements and phosphorus-potassium fertilizers.
It is important to regularly inspect the rose bushes - as can be seen in the appearance of these warning signs of an early stage of the disease, in time to help the plants and prevent further spread of infection.