Timing of pruning Elephant Heart Plum Tree
I've heard to avoid pruning plum trees until June to avoid silverleaf disease (at least, that's what I remember the disease to be), but by then there are many plums developing and it's harder to see with all the foliage. Is it really that big an issue, or would February or early March be ok?
Marion County Oregon
Below is a link to information on this disease from the PNW Disease Management Handbook. I think the key thing is to prune during dry weather, whatever the time of year. Have a look and feel free to write with further questions.