Why does white plaque appear on orchids? There are two common possible causes: a fungal infection (powdery mildew) or an attack by a pest (powdery mealybug). Why the problem arises and how to solve it using effective bio-drugs, we will tell in the article.
We fight with a white bloom on an orchid (mealybug)
How does powdery mildew and mealybug manifest?
With powdery mildew, a white coating usually appears on the underside of the leaf. The coating is powdery, the texture resembles powder or flour, and it can easily be removed with a finger. With the progression of the disease, plaque becomes gray, spreads to stems and leaves, buds and roots. Continue reading