Pear Tree (deformed Pears) - Knowledgebase Question

Pittsburgh, PA
Question by djprescott
March 29, 2001
The pears from my pear tree are delicious but have an abundance of knots and are deformed. Advised to spray tree before budding - we did (last year) but pears were still disfigured.
What are we doing wrong?? What should we use?

Answer from NGA
March 29, 2001


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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