A helicopter has been spraying chemicals in the skies above Berkshire today to halt the spread of a toxic caterpillar. The Oak Processionary Moth destroys trees and causes severe itching and rashes in humans and animals.
The area affected covers acres of Sulham Woods in Pangbourne. Two areas were sprayed today - but the operation has been delayed several times this year because of the weather. Environmental groups are questioning the use of chemicals. Full report later.
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Sunday's weather for the east with Philippa
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Captain Mike Green, a senior flying instructor, was piloting the two seater helicopter involved in the crash.