We are noticing some pear trees in the area are infected with Fire Blight, a bacterium (Erwinia amylovora), which is a common and frequently destructive disease.
Healthy Pear Tree
Diseased Pear Tree
The bacteria is most common on open blossoms during the spring, and will cause tree leaves to die and look as if they are blackened, giving the tree a scorched appearance. The bacteria will also spread into the wood surrounding overwintered cankers on twigs, branches, or trunks of host trees.
The development of Fire Blight is primarily influenced by seasonal weather. Splashing rain, hail, and insects transmit the bacteria. In particular, honey bees which feed on contaminated blossoms are efficient carriers of the bacteria.
Trees Affected By Fire Blight Can Include:
Autumn Blaze Pear
Gala Apple Trees
Thumbnail Apple Trees
Golf Green will start injecting susceptible trees with an antibiotic in March and April 2015. THIS IS THE ONLY TIME OF THE YEAR THEY CAN BE TREATED.