Show-stopping trees ... bush and white ash are just a few of the plants whose foliage deserves an end-of-the season standing ovation. Turn up the heat. “Hot” autumn leaf colors, like reds ...

The Korean mountain ash (Sorbus alnifolia ... Scale insects look like bumps on your tree's leaves and stems, and they can cause foliage to wilt and drop. Neem oil or insecticidal soap can make ...