PA1-PA6
(application of biocides)
Elements of training administered by the National Proficiency Tests Council and Scottish Skills Testing Service, and legally required for those using biocides professionally or on other people’s land. PA1 (Foundation module) is the theory, PA6 (Hand-held applicator) is the practical applicable to the use of a knapsack sprayer.
This definition is abridged from A – Z of tree terms: A companion to British arboriculture.
Read the preface. Order the book.