What's eating my argyroderma delaetii?

Argyroderma delaetii (stone plant) is kept indoors and is most threatened by mealybugs sheltering between its egg-shaped leaf bodies. Root mealybugs are a hidden danger in the root zone. Fungus gnats breed if compost stays damp. Its smooth, tight leaf pairing gives pests fewer hiding places than many succulents.

White cottony clusters in the groove between the two leaf bodies; honeydew deposits and weakened plant Dab with an isopropyl alcohol swab; apply a diluted neem oil spray directed at the leaf base and soil surface

Plant appears dehydrated despite correct care; white powdery colonies found on roots at repotting Unpot, treat roots with an imidacloprid soak or diluted alcohol rinse, allow to dry, and repot in fresh gritty mix

Larvae damage roots in overly moist substrate; tiny dark flies seen hovering around the pot Allow complete drying between waterings; add a mineral grit top-layer; use yellow sticky traps to intercept adults