Spider Mites

About this condition

Spider mites (Tetranychus spp. and related species) parasitize the undersides of leaves, feeding on cell contents. They proliferate rapidly in hot, dry conditions and, if left untreated, cause foliage to appear bleached and eventually drop, leading to overall plant decline.

Common symptoms

• Numerous white stipples appear on leaf surfaces, giving the foliage a bleached, hazy appearance
• Tiny reddish-brown mites and fine webbing are visible on the undersides of leaves
• As the infestation progresses, leaves turn yellow and drop
• New leaves near the growing point may be stunted or deformed

Common causes

• Hot, dry conditions (particularly common after the rainy season ends in summer)
• Poorly ventilated environments prone to heat buildup
• Transfer of mites from other plants or surrounding areas
• Insufficient regular observation leading to delayed detection

Prevention (growing conditions & routine care)

Regularly inspect the undersides of leaves for early detection. Maintain moderate humidity and prevent prolonged hot, dry conditions. Ensure good air circulation and avoid overcrowding plants. Quarantine newly acquired plants for a period before placing them alongside existing plants.

Related guide

When to see a vet

What can a nursery or grower do?

When spider mite infestations are widespread or specific management questions arise, consulting a specialty nursery or experienced caudex grower is effective. Specialists can provide comprehensive advice including improvements to humidity and ventilation management as part of a broader review of growing conditions.

Related columns

• Fouquieria Care Guide
• Dorstenia Genus Cultivation Guide | Caudex Plants with Unique Leaves and Structures
• Caudex Plant Flowering Timing and Seasonal Signs | Complete Guide to Management Timing for Full Bloom
• Complete Guide to Growing Cyphostemma | The Charm of Individual Caudices, a Grape Family Caudiciform Plant

Other problems with this plant

The same problem in other plants