Echeveria derenbergii · Succulent
Vine weevil: Apply nematodes to the compost in autumn and spring or use a systemic insecticide.
Mealybugs: Wipe off with alcohol-dipped cotton buds or spray with a suitable insecticide.
Root rot: Ensure sharp drainage and water only when compost is dry; avoid winter wetness.
Aphids: Spray off with a strong jet of water or treat with insecticidal soap.
Leaf burn: Water with rainwater instead of tap water to avoid fluoride damage.