A common reason that fruit trees fail to bear fruit is the lack of pollinator/pollination.
Another is excessive vigor: trees spend all their energy growing, not producing fruit because they have been over-fertilized (especially too heavy on the nitrogen) and too heavily pruned.
A late-season frost could be the cause of lack of fruit production. Flowers are very sensitive to temps; temps below 29 degrees F will prevent fruit formation. Even a very cold (minus 15 degrees F) winter spell can deter fruit formation.
Rust spots on/in the leaves is a signs of rust fungus (Gymnosporangium sabinae). Is your tree near a juniper tree (even one on a neighbor’s property)? This fungus needs both pear and juniper to survive; each are hosts. Separation recommendations range from 100 to 1000 feet; it’s that wide spread because it’s that little understood! Apparently care involves elimination of the galls/swellings on any/all juniper hosts before April 1—but the pear may have branch or twig galls as well that harbor the fungus through the winter.
This condition may be something you want to consult a tree expert about.
A common reason that fruit trees fail to bear fruit is the lack of pollinator/pollination.
Another is excessive vigor: trees spend all their energy growing, not producing fruit because they have been over-fertilized (especially too heavy on the nitrogen) and too heavily pruned.
A late-season frost could be the cause of lack of fruit production. Flowers are very sensitive to temps; temps below 29 degrees F will prevent fruit formation. Even a very cold (minus 15 degrees F) winter spell can deter fruit formation.
Rust spots on/in the leaves is a signs of rust fungus (Gymnosporangium sabinae). Is your tree near a juniper tree (even one on a neighbor’s property)? This fungus needs both pear and juniper to survive; each are hosts. Separation recommendations range from 100 to 1000 feet; it’s that wide spread because it’s that little understood! Apparently care involves elimination of the galls/swellings on any/all juniper hosts before April 1—but the pear may have branch or twig galls as well that harbor the fungus through the winter.
This condition may be something you want to consult a tree expert about.