Zootal wrote:

I have a copper based fungicide, and a sulfur based fungicide. Both claim to
be the definitive cure for peach leaf curl. Does anyone know which works
better, or if both are equally effective? Last year my peaches had peach
leaf curl quite severly. I'd like to prevent it from happening this year.

From what I know, either one will work. The important thing is to apply it
before bud swell.

Sherwin