Green flowers, which flowers are easy to be infected with coal fouling disease
Coal contamination is due to the fact that mucus excreted from scale worms or aphids provides a nutrient base for pathogens in a dark environment; it is also known as soot disease.
Coal pollution mainly affects greenhouse flowers, such as calla lily, evergreen, single leaf orchid, turtle, jasmine and woody potted flowers, such as cycad, camellia, wolfberry, white orchid, osmanthus, begonia, baisheng, oleander, etc. pomegranate; it is also frequently infested with various potted citrus flowers and trees.
In the early stages of coal contamination, dark brown mold spots appeared on branches and leaves, which later spread into a soot-like mold layer, hindering photosynthesis and normal respiration of leaves, making them impossible to display and observe.
The main ways to prevent coal pollution are to strengthen greenhouse ventilation, keep air humidity low, do not spray water on plants, and remove mites and mites in time. As soon as the disease begins, 0.3-0.5 waves of a high-quality imitation medoxite sulfur mixture should be sprayed immediately. Family flowering cannot be sprayed indoors with a stone-sulfur mixture. Only after diluting white wine with double water, wipe the coal on the leaves with cotton wool, then wash them with water and dry them in a ventilated place.。The effect of using half volume of Bordeaux mixture 100 times solution to prevent coal pollution is also very significant.
Time: 2019-05-18 Click:
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