Oak processionary posed a health threat. In April 2018, an outbreak of the caterpillars was reported across Greater London and surrounding areas. The moth is now fairly common in Belgium, notably in the Campine but also elsewhere, with fluctuating population numbers from year to year. In 2007 infestations in the Belgian province of Limburg were so acute that soldiers were deployed to burn them. In the Netherlands, the caterpillars are dealt with by biological pest control. Local authorities use, like in Germany, fluids containing bacteria that are toxic only to the caterpillars. These fluids are sprayed onto the infected trees. Furthermore, an
National Office of Animal Health National Office of Animal Health The National Office of Animal Health (NOAH) is a British organisation that represents the voice of its members from within the animal medicine industry in the United Kingdom of Great Britain and Northern Ireland. NOAH’s aim is to: “... promote the benefits of safe, effective, quality medicines for the health and welfare of all animals.” The members of NOAH typically come from a broad spectrum of the animal and veterinary medicine industry including small UK organisations and larger multinational corporations who have interests in providing animal medicine and services to animal health in the UK.