show Natural England believes spraying will not eradicate oak processionary
moth and could harm butterflies
processionary moth caterpillars destroy oak trees and can cause sore throats
and rashes in humans. Photograph: Christine Tilbury/PA
will be sprayed with insecticide from a helicopter for a second time to wipe
out a caterpillar that is destroying the UK's oak trees, despite the government
regulator saying in private that such an approach is unlikely to work and could
have "serious" effects on other wildlife.