Bamboo Spider Mite
Stigmaeopsis celarius
2 host plants
Last updated
Fine stippling and yellowing on bamboo leaves, progressing to bronzed, dry foliage in summer, signals bamboo spider mite activity. You will see fine webbing on leaf undersides when populations are high. These mites thrive in the warm, dry conditions of late summer and can build rapidly on water-stressed bamboo in home and landscape settings.
Regular overhead watering during dry spells disrupts mite colonies and creates unfavorable conditions for population growth. Strong water sprays from a hose knock mites off foliage. Predatory mites provide effective biological control when conserved. Horticultural oil applied at the first sign of stippling reduces populations before damage becomes severe.
Quick Reference
Cultural Controls
- Avoid use of broad-spectrum insecticides that kill natural predators such as ladybird beetles and predatory mites.
- Wash spider mites from plants with a strong stream of water.
- Provide proper culture to maintain plant health.
- Healthy plants are more tolerant of insect damage.
- Provide proper nutrition.
- High levels of nitrogen in the foliage encourage spider mite reproduction.