Psyllid (Plant Louse)
Psyllidae family
moderate risk
insect
Overview
Jumping plant lice that feed on phloem of many plants. Some species are devastating agricultural pests that transmit destructive diseases.
2-4mm, resemble tiny cicadas. Wings held rooflike over body. Adults can jump. Nymphs flat and scale-like.
Prevention Strategies
- •Inspect plants regularly for early detection
- •Avoid water stress
- •Encourage natural predators
- •Quarantine measures for Asian citrus psyllid
Control Methods
- •Kaolin clay for Asian citrus psyllid
- •Imidacloprid systemic for tree pests
- •Insecticidal soap for light infestations
- •Pyrethroid sprays
- •Biological control with Tamarixia radiata wasp
Interesting Facts
- •Asian citrus psyllid vectors Huanglongbing (citrus greening) - the most destructive citrus disease ever
- •Citrus greening has no cure and has devastated Florida's citrus industry
- •Pear psyllid has developed resistance to nearly all insecticides
- •Some psyllid species cause distinctive galls that look like plant growths