What if the ivy leaves turn black?

First, reasons

When the low temperature is below 5 ℃ or above 0 ℃, the leaves of ivy will change from green to dark green to purple. Also, during the growing period, the temperature is significantly higher than 5 ℃, but the leaves will still blacken, especially in summer, this situation is caused by coal fouling disease, which should have occurred the harm of shell insects, its excreta contaminated leaves, and then mildew gave birth to coal fouling disease, so there is a blackening phenomenon.

II. Solutions

If it is caused by low temperature, move the plant to a warm area, and the dark purple leaves will turn green.

If the leaves are black in summer or growing season, you must first clean up the shell worms. Generally, they will occur on the back of the leaves or on petioles or branches. Wipe it off with a waste toothbrush or soft cloth, and then dip in some neutral washing powder water to wash off the black on the leaves, and then rinse the leaves with clean water, so that the problem of blackening of the leaves can be solved.