Answer: Lumpy, bumpy pears might indicate scab disease, or may be a result of fluctuating soil moisture during fruit formation. Scab is a fungal disease that can be prevented with regular applications of lime-sulfur. Begin spraying as soon as the buds show green, then reapply every week until midsummer if the weather is dry, or until 30 days before harvest if the weather is wet. Be sure to rake up and dispose of fallen leaves and fruit at the end of the season so the fungal spores do not have a chance to reinfect the tree.
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