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By National Gardening Association Editors
Ornamental grasses add grace and motion to the garden with straplike foliage that sways in the gentlest breeze. The fluffy flowers and seed heads on many varieties last...more
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Iris borers cause foliage to be ragged and yellow-streaked and rhizomes soft and mushy. The tunneling in the rhizome allows rot diseases to invade. To control, dig up, remove, and destroy severely infected rhizomes.
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