Spider mites are tiny pests that can damage succulent leaves by feeding on plant tissue. They may cause pale marks, rough leaf surfaces, webbing, and general decline.
Hot, dry conditions can make outbreaks worse. Inspect leaf backs and crowded areas, isolate affected plants, and avoid letting the problem spread through a collection.
Treatment depends on severity and local product availability. Use appropriate miticides or control methods carefully, and repeat inspection because eggs and hidden pests can remain.