Bleach at 1/4 cup per gallon. If you cut into uninfected wood (which is the
only way to prune the disease out) you won't transmit fireblight with your
tools anyway. The bleach is a precaution in case you screw up and prune in
the wrong spot.

A 90% or more pure solution of alcohol will also work and is less corrosive.
Not always at hand, and flammable, though, so the bleach is the best bet.

Rinse and oil the tools when you're all done.

--
Sam



"Larry Caldwell" wrote in message
...
I have a couple apple trees infected with fire blight. I want to prune
the diseased limbs off, and know I should disinfect my pruning tools to
keep from spreading the disease to healthy trees.

So what do I use to disinfect the tools? Paint thinner? I have a big
propane burner, but don't want to take the temper out of my tools or melt
fiberglass handles.

--
http://home.teleport.com/~larryc