Fire Blight

May 7, 2012   //   by resident   //   Notifications  //  Comments Off on Fire Blight

Fire Blight

It seems that the serious disease “Fire Blight” has infected a large number of trees in LPF this Spring. One neighbor has reported seeing 34 or more trees affected around the neighborhood. According to one arborist, the outbreak is the worst that he has seen in 15 years. There is not a great deal that can be done at this time of year, but there is some good advice at Virginia Tech. The advice includes:

 

Fire blight, caused by the bacterium Erwinia amylovora, is a serious disease of many ornamental species in the Rosaceae family.

 

Symptoms
Blossoms, young fruits, small twigs, leaves and water sprouts are susceptible to infection. Blossoms and leaves wilt suddenly, turn dark brown to black, shrivel, and die, but usually remain attached to the plant.

 

Fire Blight in a Queen Bishop Ln tree

Control
During the late summer when bacterial growth slows, all infected twigs and branches should be pruned out and burned or buried. Because the bacteria are usually found somewhat in advance of the obviously diseased tissue, the cut should be made through healthy wood 6 to 8 inches below the point of visible infection.
But do read the full article for more advice.

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