Field Identification
Bright red spider mite that stipples citrus leaves and fruit, bronzing foliage and sometimes causing drop when dry weather favors outbreaks. Field ID is the rusty cast to leaves and moving red dots on the underside with a lens.
Eight-legged adults are larger and rounder than many tetranychids; eggs are red and globular. Populations explode after dusty roads, sulfur sprays, or broad-spectrum insecticides that knock out predators.
How to Deal With It
Organic Control Methods
Horticultural oil or narrow-range summer oil timed to avoid tree stress; insecticidal soap for light infestations—never mix oil and sulfur close together.
Euseius and other phytoseiid predatory mites, sixspotted thrips, and small lady beetles—preserve them by avoiding pyrethroids on citrus skirts.
Dust control on orchard roads; adequate irrigation during drought; selective pruning for air movement without exposing fruit to sunburn.
High-volume water wash can dislodge mites temporarily on small trees.
Monitor with hand lens weekly in hot months; treat only when counts cross established thresholds, not on calendar autopilot.
Let Nature Handle It
Natural Enemies
- Euseius tularensis
- Stethorus picipes
- Scolothrips sexmaculatus
Threat Map