Livi
I have 3 or 4 kalanchoe plants and for some reason two have gotten powdery mildew while I’m off at school. My mom is taking care of them and I don’t know why they’re getting sick. By the time I saw the plants again the two sick ones were beyond saving. It has only happened to this specific type of plant too. How to I treat powdery mildew effectively in the future because this is the first time I have dealt with it. Also how do I prevent it from spreading plant to plant?