From our perspective as Echeveria plants, we are generally resilient, but our succulent leaves and tight rosettes can create perfect hiding spots for tiny invaders. When pests attack, it disrupts our ability to photosynthesize, saps our strength, and can lead to disfigurement or even death if left unchecked. We rely on you to notice the subtle and not-so-subtle signs of these infestations.
We cannot speak, so we show our distress through physical changes. For mealybugs, look for fluffy, white cotton-like masses tucked in the crevices between our leaves or nestled near our stem. They pierce our tissue to feed, leaving behind a sticky residue called honeydew, which can attract ants and lead to sooty mold. Aphids are smaller, often green or black, and tend to cluster on our new, tender growth or flower stalks. Their feeding causes our leaves to curl, pucker, and yellow. In both cases, you might notice a general lack of vigor; our growth may stunt, and our normally plump leaves may become limp and sad.
The first thing we need when you discover pests is to be quarantined. Please move us away from our other plant friends to prevent the infestation from spreading. For initial treatment, a strong jet of water can dislodge many aphids. For the tenacious mealybugs, physical removal is highly effective. Dip a cotton swab in isopropyl alcohol (70% concentration) and gently dab each white bug you see. The alcohol dissolves their waxy coating on contact, effectively dispatching them. This method requires a keen eye and patience to ensure you find all the hidden individuals.
For more widespread infestations, we benefit from a thorough spray-down. Insecticidal soaps or horticultural oils (like neem oil) are effective and less harsh than synthetic chemicals. These solutions work by suffocating the pests. It is crucial to cover all surfaces of our plant, especially the undersides of leaves and the center of the rosette. Always test any spray on a single leaf first to ensure it does not cause sun sensitivity or damage. Treatments should be repeated every 7-10 days for at least two to three cycles to address any newly hatched eggs that the initial application missed.
Our best defense is a strong offense, which starts with your care. Providing us with optimal growing conditions—plenty of bright, indirect light, well-draining soil, and careful watering that avoids leaving our leaves and crown wet—makes us stronger and less susceptible to pest attacks. Stress from overwatering or poor light weakens our natural defenses. Even after an infestation is cleared, please continue to inspect us regularly during your watering routine. Early detection is the key to managing pests easily and keeping us healthy and thriving for years to come.