Kathy Shaner is quick to point out the importance of sealing all pruning wounds on pyracantha, especially with the problems associated with fireblight, which she said can be transferred from one plant to another by the movement of birds and insects.
Ernie Kuo has a similar story on one of the trees in his Gallery at
http://www.geocities.com/erniekuo@s...al.net/pyra.htm
Good luck,
Matt