Location: Tucson, AZ. I planted a mulberry bush about 4 years ago. The tree itself is thriving. But each late winter/spring (for 2 years now), I get berries even before the leaves show up. Then the leaves come out in full force and the berries drop off, all dried up and shriveled. Should I be covering the tree with shadecloth or something in the late winter, when temps get into the 80's in Feb and March, to slow down the early berry production?
Certified GKH Gardening Expert
This article will help you with fruit drop.