About OPAL Tree Health Survey
OPAL’s seventh survey focuses on the health of our trees. In recent years the number of pests and diseases attacking trees has increased leading to a decline in tree health and in some cases tree loss. In order to manage these problems most effectively we need to study our trees and record information about their condition and any pests and diseases that are found.
The information and photographs in this guide will help you identify pests and diseases on Oak, Ash and Horse Chestnut trees and six of the Most Unwanted, helping you take part in our Tree Health Survey.
Download and install
OPAL Tree Health Survey version 4.0.0 on your
Android device!
Downloaded 500+ times, content rating: Everyone
Android package:
uk.gov.defra.fera.opalapp, download OPAL Tree Health Survey.apk
by Z####:
Lack of biosecurity controls