Incorrect pruning, particularly “topping,” is the surest way to ruin a tree. If it doesn’t kill the tree outright, it will result in extremely dense growth at the ends of the chopped-off branches.

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RIVERSIDE, Calif. (KABC) -- A new invasive pest now moving north from Mexico and San Diego County has Southern California's palm trees in its sights. The South American palm weevil attacks palm trees, ...