Pests and diseases for succulents: general prevention & solutions
Succulents are extremely resilient plants, but they can be affected by pests and diseases, particularly when grown indoors or kept too wet. When problems do arise, they are often related to mealybugs, aphids, gray mold (Botrytis), or fungus gnats. You can find specific information for each of the...
Mealybugs: signs & treatments
White, cotton-like buildup in crevices between leaves
Misshapen leaves marked with dents
Significant leaf loss, including top and center leaves
First, isolate plant to prevent spread of bugs and repot with new soil
Most effective strategy: spray directly with 70% isopropyl al...
Aphids: signs & treatments
Clusters of tiny black, green, yellow, white, or pink dots
Sticky residue on leaves
First, isolate plant to prevent spread of aphids and repot with new soil
Most effective strategy: spray directly with 70% isopropyl alcohol (rubbing alcohol) every day until bugs disappear
Fungal Infections: signs & treatments
Fungal infections are common in succulents. They can be caused by too frequent watering, high humidity, heavy, poorly-draining soil, and/or containers lacking drainage holes. They can present in a number of ways, including a thin, white dusting, a thick layer of grey fuzz, a rusty red mottling, a...
Fungus gnats: signs & treatments
Small, black gnats flying slowly and resting on wet soil
Look similar to fruit flies
Help soil dry out completely by reducing watering frequency and increasing airflow and sunlight
Make a gnat trap: pour a couple splashes of apple cider vinegar and a few drops of dish soap into...
Gray mold (Botrytis): signs & treatments
Mass of fuzzy, gray to brown fungal spores
Dusty mold spreading from broken, damaged, or dying leaves and stems
Remove any dead or dying plant parts (clean scissors with bleach before and after)
Apply a copper soap fungicide every 7-10 days until mold is gone
Reduce watering ...
Scale: signs & treatments
Hard, round black, brown, or gray bumps
Weak, wilted, or yellowing plants
Spray with 70% isopropyl alcohol (rubbing alcohol) daily until insects are gone
Gently scrape off scale with a card
Remove affected leaves and stems
Spray with soapy water solution (three drops of soap in...