Public health pests
Processionary caterpillars
Caterpillars associated with pine trees. Their hairs can irritate people and pets, so nests and trails should not be handled casually.
Signs to look for
- Silky nests in pine trees
- Caterpillars moving in lines
- Pet irritation after contact
- Activity in gardens or school grounds
Risks
- Skin and eye irritation
- Serious pet reactions
- Exposure around children or public areas
Prevention
- Avoid touching nests or caterpillars
- Restrict access below affected trees
- Monitor pines seasonally
- Seek safe removal advice
When to call PPS
- Nests are in accessible areas
- Children, guests or pets use the area
- You need safe seasonal management