Is dormant oil effective against fireblight in peaches and pears?
This post was edited by 2inAlabama on Mon, Feb 25, 13 at 20:30
No, will have no effect on fire blight. There are some new materials but don't know when or if home gardener will get them.
Choosing resistant varieties is by far the home growers best defense.
And peaches don't get fire blight.
Oil is a discretionary material that is only helpful if you have issues with aphids or scale.