







BN-29478 

 This Bartlett pear tree was killed by a severe blight at- 

 tack. The healthy trees in the background were not 

 infected. 



HOW TO CONTROL BLIGHT 



To control blight, prune out cankers and 

 other diseased parts, and apply antibiotics or 

 copper-base compounds. The method you choose 

 will depend on your location, and on the extent 

 of the blight infection. 



Pruning 



In late summer, inspect your trees and cut 

 out all blighted twigs. Make cuts at least 8 to 

 12 inches below the diseased part of the twig. 

 Cut out blighted tissue in the large limbs and 

 trunk ; extend the cut well into healthy tissue. 



Inspect your trees again in late fall or early 

 winter, after the leaves are off and it is easier 

 to spot cankers that you might have missed. 



Do not prune blighted blossoms and twigs in 

 the spring, except when only a few trees are 

 lightly infected. Postpone pruning until late 

 summer or early fall, when blight usually is no 

 longer active and the risk of spreading the in- 

 fection is not as great. 



Sometimes blight affects fruit trees so se- 



