Aster yellows is not a new variety of flower; instead, it is a bacteria that affects over 300 species of plants, including ornamentals such as aster, coneflower, zinnia, marigold, chrysanthemum, ...
With bright petals on daisy-like flowers, asters (Symphyotrichum spp.) are a popular addition to any garden. Known as a keystone species, asters serve as an important food source for pollinators in ...
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