River birch help
I just planted a balled and burlaped three trunk river birch two of three trunks seem to be doing ok but one of them and a branch in the same location from a different trunk are dropping leaves. It happens very quickly and it's only about half of the limb very small growth and buds close to the trunk are still green. I've attached pictures. There is hardly any yellowing the just dry to dry in a days time. The are it is in is a moist area and gets irrigated for the lawn daily. It gets sun from morning until about 2 then it's shaded. Does it need more/ less water? I haven't seen any info online for the rapid brown leaves only yellow than dropping. Any help would he great.