Australian Standards for the pruning of amenity trees outlines the correct methods for pruning. Australian Standards apply to most goods and many services consumers buy and are created to ensure purchasers obtain safe, high quality outcomes.
These standards were created after acknowledgement that the practice of Tree Lopping was delivering poor quality outcomes for both trees and clients. Tree Lopping is still mistakenly believed by many people (even some gardeners and horticulturalists) to be a valid form of hazard reduction for large trees, especially eucalypts. In fact the opposite is true as tree lopping over time increases tree lopping hazards of post lopped limbs failing and total tree failure from decay or disease introduced from lopping wounds.