My mulberry tree leaves are curling fully or partially from the new growth. I can see it right now in 1/3 of the branches. There are no insects near or on the leaves. I water every 3rd day about 100 litter as it is sandy soil and tree trunk is about 1.5 to 2 inch.
There are actually 2 mulberry trees, same size, same soil, same care routine. One is fine, but only this one has the problem. What could be the reason?
