Prevention and treatment of coal pollution disease of flowers and plants

Coal pollution disease is also known as soot disease. It occurs in a shaded and humid environment because the cat fluid excreted by shell insects and aphids provides a nutrient base for the pathogen of coal pollution disease.

There are many flowers and trees damaged by coal pollution, mainly on the leaves and shoots of calla, evergreen, spider egg, tortoise bamboo, cycad, camellia, mast, jasmine, magnolia, sweet-scented osmanthus, Haitong, Michelia, oleander, pomegranate and all kinds of potted citrus flowers and trees. At the beginning of the disease, dark brown mildew spots appeared on the branches and leaves, and then gradually expanded and spread into a black soot-like mildew layer. although it will not wither the branches and leaves for a while, the black mold will accumulate thicker and thicker, seriously hindering the photosynthesis of the leaves and affecting the normal respiration of the plants. so that the growth potential is greatly reduced, so that it can not be furnished and ornamental.

In order to prevent coal fouling disease, both indoor and outdoor flowers and trees must be given good ventilation, especially to put an end to clam shells and aphids. Once the disease occurs, the most effective way is to spray Baume 0.3-0.5 degree stone sulfur mixture. If you can't find a stone-sulfur mixture, and you don't have the conditions to make it, in the case of a small number of flowers, you can also use skimmed cotton balls dipped in low-alcohol liquor to clean the coal stains on the branches and leaves, rinse them with clean water immediately after cleaning them, and put them in a ventilated place to dry the plants as soon as possible. In the professional flower field, half-volume Bordeaux liquid can also be used to spray on the branches and leaves where coal pollution occurs, and the curative effect is also quite obvious.