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Fire blight on pear trees

Fire blight, caused by the bacterium Erwinia amylovora, is a common and frequently destructive disease of pome fruit trees and related plants. The first symptoms of fire blight occur in early spring, when temperatures are above 60 °F and the weather is rainy or humid. Infected flowers turn black and die….
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What is this strange growth on azalea leaves?

Leaf galls, caused by the fungus Exobasidium vaccinii, are common on azalea in the spring during wet, humid, cooler weather. The fungus invades expanding leaf and flower buds causing these tissues to swell and become fleshy, bladder-like galls. Initially, the galls are pale green to pinkish. Eventually, they become covered…
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