Sempervivum Has White Stuff On Leaves…mildew?

Question

We have some hens and chicks growing on our front porch. They have been doing very well and have looked healthy. Recently (within last few weeks) some of them have begun showing some white powdery looking stuff on the leaves. Is this something to be worried about? How can I get rid of it before it does damage to the entire planting? I have attached a couple of pictures.

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Answer 1

It looks more like mealybugs than powdery mildew. Here is more about how to control them:

https://www.gardeningknowhow.com/plant-problems/pests/insects/outdoor-mealybug-control.htm