Help, I am having a serious problem with my large Kalanchoeās. Iāve had these for several years and they have thrived to the point Iāve given away 100ās of cuttings. I put them outside on my deck in the summer as I live in New Hampshire so they canāt stay outside all year. Iāve never had any issue with them except they donāt flower often. However this winter I started noticing on the 4 Large ones I have that the leaves have white dust on them. Two of the four have dropped 98% of its leaves but new shoots and leaves are starting. Can anyone tell me what the issue is and how to solve it??? Iām attaching a picture of one from last October and the same plant today. I so would appreciate any help anyone can give me.

