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The Backyard Orchardist – Fruit Pests: Apple, Marion Murray, Diane G. Alston
The Backyard Orchardist – Fruit Pests: Apple, Marion Murray, Diane G. Alston
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Fire blight is caused by a bacteria called Erwinia amylovora. Some varieties of apples are very susceptible to this disease, such as Jonathan, Jonagold, and Gala. Blossoms, terminal twigs, and sometimes entire limbs or trees are killed.