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Trees often produce tree suckers when under stress in an effort to grow more branches. Stress resulting in suckers may be caused by prolonged drought, extreme temperatures, insect and other pest infestations, soil toxins, and more. The suckers typically grow and produce more branches in an ultimate effort to save the stressed tree; however, suckers can produce poor fruit, vary in species, and drain energy from the tree’s upper, healthier branches. Therefore, arborists recommend annual removal of any sucker branches for improved tree health and longevity. Ideally, suckers should be removed as early as possible, but some tree species require removal in the fall after the tree has dropped its leaves. Hawthorn trees are one such species.