Two-Spotted Spider Mite (Tetranychus urticae)
Highly damaging mite causing bronzing, webbing and rapid population growth.
Tetranychus urticae is the most widespread spider mite pest. It thrives in hot, dry conditions and causes leaf bronzing, stippling and extensive webbing. Reproduction is rapid, leading to sudden crop decline. Biological control includes Phytoseiulus persimilis for curative hotspots, and Amblyseius swirskii / andersoni for preventative programmes.
Biological Controls for Two-Spotted Spider Mite (Tetranychus urticae)
The options below are examples of beneficial insects and biological products commonly used against two-spotted spider mite (tetranychus urticae). Always refer to supplier guidance and product labels for crop safety and local registration status.
Phytoseiulus persimilis
Product: Phytoline
Environment: glasshouse
Temperature Range: 15.0 – 30.0°C
Rate: 5–10 mites/m² preventatively; 10–20/m² curatively
Frequency: Repeat after 7–10 days
Primary biological control for TSSM.
Amblyseius californicus
Product: Californiline
Environment: all
Temperature Range: 10.0 – 35.0°C
Rate: 25–50/m²
Frequency: repeat as needed
Predatory mite option for preventative/early spider mite suppression, especially under warmer/drier pressure.
Amblyseius andersoni
Product: Anderline
Environment: all
Temperature Range: 6.0 – 30.0°C
Rate: 25–50/m²
Frequency: preventative; top up as needed
Generalist preventative option; monitor hotspots and escalate if pressure increases.
Related Biological Solutions
Growers dealing with two-spotted spider mite (tetranychus urticae) often also monitor these pests as part of a complete IPM programme: