As a Crassula plant, I am generally hardy and low-maintenance, but I am not immune to pests. These tiny invaders can weaken me, stunt my growth, or even kill me if left untreated. Common pests include mealybugs, spider mites, aphids, scale insects, and fungus gnats. Each pest affects me differently, and recognizing their presence early is key to saving my health.
Mealybugs are one of the most common pests that attack me. They appear as tiny, white, cotton-like clusters on my leaves, stems, and roots. They suck my sap, leaving me weak and discolored. To treat them, you can use a cotton swab dipped in rubbing alcohol to wipe them off. For severe infestations, insecticidal soap or neem oil sprays work well. Isolating me from other plants prevents the pests from spreading.
Spider mites are tiny and hard to see, but their fine webbing on my leaves gives them away. They cause yellow or brown speckles as they feed on my cells. Increasing humidity around me can deter them, as they thrive in dry conditions. A strong spray of water can dislodge them, while miticides or neem oil can eliminate stubborn infestations.
Aphids are small, soft-bodied insects that cluster on my new growth, sucking my sap and excreting sticky honeydew. This can lead to sooty mold growth. A blast of water can knock them off, or you can introduce natural predators like ladybugs. Insecticidal soap or neem oil also works effectively against them.
Scale insects attach themselves to my stems and leaves, forming hard, shell-like coverings. They drain my nutrients, causing yellowing and wilting. Manual removal with a soft brush or fingernail helps, but horticultural oil or systemic insecticides may be needed for heavy infestations. Regularly inspecting me prevents them from establishing colonies.
Fungus gnats are small black flies whose larvae feed on my roots, hindering my growth. Overwatering encourages them, so letting my soil dry between waterings helps. Yellow sticky traps catch adult gnats, while a hydrogen peroxide soil drench (1:4 ratio with water) kills larvae. Beneficial nematodes can also be introduced to control them naturally.
Preventing pests is easier than treating them. Ensure I have proper sunlight, well-draining soil, and avoid overwatering. Quarantine new plants before placing them near me to prevent pest introductions. Regularly inspect my leaves, stems, and soil for early signs of infestation. A healthy Crassula like me is less likely to suffer severe pest damage.
