In many regions, summer thunderstorms are rolling in, making tree maintenance imperative. Dead branches can break and fall during storms, damaging roofs, landscaping, and occasionally even downing power lines. Remove dead branches now to steer clear of trouble. While you're at it, remove suckers, those tiny branches sprouting in odd spots along the tree trunk or limbs. Although they may seem harmless, they divert a tree's energy from the higher branches, weakening the plant.