Why are we being warned about toxic caterpillars?
Poisonous oak processionary caterpillars are sparking health warnings across Europe. Their hairs trigger breathing difficulties and severe health issues. Authorities in Germany and the UK have restricted access to affected outdoor spaces.
What changed
New reports confirm aggressive outbreaks in Germany and nest sightings in Surrey.
Live updates
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Oak processionary caterpillars cause park closures in Europe
confidence 100%Poisonous oak processionary caterpillars are sparking health warnings across Europe. Their hairs trigger breathing difficulties and severe health issues. Authorities in Germany and the UK have restricted access to affected outdoor spaces.
What's confirmed:
- Oak processionary caterpillars can cause breathing difficulties.
- Authorities have closed parks and outdoor spaces to manage the outbreaks.
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Oak processionary caterpillars spread across Europe
confidence 90%The oak processionary caterpillar is infesting oak trees throughout many parts of Europe. Authorities have cordoned off or restricted access to affected areas. The insects' hairs can cause breathing problems, rashes, and anaphylactic shock.
What's confirmed:
- The oak processionary caterpillar is infesting oak trees in many parts of Europe.
- Authorities are cordoning off or restricting access to affected areas.
- Hairs from the caterpillar can trigger allergic reactions including rashes, breathing problems, and anaphylactic shock.
Still unconfirmed:
- The pests have become a plague in some districts of Berlin.
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Warning Issued Over Venomous Caterpillar Risks
confidence 80%Experts warn of stinging caterpillars as temperatures rise. These insects use a toxic chemical cocktail delivered through specialized implements. Their geographic range is currently expanding.
What's confirmed:
- Venomous caterpillars use a toxic chemical cocktail and delivery implements.
- Stinging caterpillars appear as weather warms.
Still unconfirmed:
- The geographic range of these caterpillars is expanding.
- Texas A&M AgriLife experts are warning of stinging caterpillars.
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Health Warnings Issued Over Oak Processionary Moth Caterpillars
confidence 100%Warm weather has caused a surge in oak processionary moth caterpillars. These invasive pests pose health risks to humans and animals. Authorities urge the public to remain vigilant this summer.
What's confirmed:
- Warm weather has led to an increase in oak processionary moth caterpillars.
- The oak processionary moth is an invasive species.
- Hairs from the caterpillar can cause irritation to the skin or eyes of people and animals.
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Toxic caterpillars spread across Europe as health warnings escalate
confidence 98%Oak processionary moth caterpillars have surged due to warm weather, triggering skin rashes and breathing risks. German and UK authorities warn residents to avoid contact, with infestations shutting parks and schools. Cleanup costs are rising as the pests spread to new areas. Homeowners are advised to check oak trees for nests.
What's confirmed:
- Warm weather has accelerated the arrival of oak processionary moth caterpillars, posing risks from toxic hairs that cause skin rashes and breathing difficulties.
- Authorities in Germany and the UK are warning residents to check oak trees and avoid direct contact with the caterpillars or their nests.
- Infestations have led to park and school closures, with cleanup operations incurring sharply higher costs.
- Oak processionary caterpillars have spread across all 12 districts of Berlin.
- May’s heatwave is linked to the early and widespread emergence of these toxic caterpillars.
Still unconfirmed:
- Oak processionary moth caterpillars are among the most poisonous in the world, with severe sting risks (single-source claim).
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Toxic caterpillar alerts rise as oak processionary moths spread across Europe
confidence 97%Warm weather has triggered a surge in oak processionary moth caterpillars, posing health risks from skin rashes and breathing difficulties. Authorities in Germany and the UK are warning residents to check oak trees and avoid contact. Infestations are closing parks and schools, with cleanup costs rising sharply.
What's confirmed:
- Oak processionary moth caterpillars are spreading faster than in recent years due to unusually warm weather.
- Their toxic hairs can cause painful skin rashes and respiratory issues, prompting health warnings.
- Germany has seen record outbreaks, leading to school closures and park restrictions in multiple cities.
- Local governments are facing millions in cleanup costs to mitigate the infestation.
- UK residents are being urged to inspect oak trees for nests, particularly in Derbyshire and Berlin-equivalent regions.
- The caterpillars’ barbed hairs pose the greatest risk when disturbed, triggering allergic reactions.
Still unconfirmed:
- A single Texas case of a toddler stung by a venomous caterpillar has sparked unrelated alerts in the U.S. (no direct link to European infestations confirmed).
- Some reports suggest late-summer defoliators like the orangestriped oakworm may pose similar but less severe risks (no confirmed toxic hair hazards).