Aloe vera pests and diseases: Identification and prevention

Common pests on Aloe vera

Aloe vera grown indoors can be affected by several pests. The most common are:

• Mealybugs: Small, white, cotton-like insects found in leaf axils or on roots.
• Spider mites: Tiny, red or brown mites that create fine webs, often on the underside of leaves.
• Aphids: Small green, black or brown insects that cluster on new growth.
• Scale insects: Hard, brown bumps attached to stems or leaves.

Symptoms and signs

• Sticky residue (honeydew) on leaves or nearby surfaces
• White, cottony masses (mealybugs)
• Fine webbing, especially between leaves (spider mites)
• Yellowing, speckled, or deformed leaves
• Brown or black bumps (scale insects)

Check your Aloe vera regularly, especially on the undersides of leaves and in tight leaf bases.

Prevention tips

• Place Aloe vera in a spot with good air circulation and sufficient light.
• Avoid overwatering; allow the soil to dry out between waterings.
• Inspect new plants before bringing them indoors.
• Remove fallen leaves and debris from the pot surface.

Natural control methods

• Remove visible pests by hand or with a soft brush.
• Wipe affected leaves gently with a damp cloth.
• Isolate infested plants to prevent spread.
• Repeat checks weekly until the problem is resolved.

If pests persist or spread, consider consulting a professional for further advice.

When to seek professional help

If you notice extensive damage, rapid pest spread, or if natural measures are not effective after several weeks, contact a plant specialist or horticulturist for tailored advice.