Q.My Chinese Pinache has dry root.
How can we save our Chinese Pinache? We pruned it yesterday and a branch fell last night. We noticed the branch that fell was over the branch we pruned earlier in the day. The area where the branch broke off was dripping with water which was coming down the truck and dripping down onto the ground. The end of the branch was dry rotted and wet! Our tree is 19 years old. No other signs of disease. In August, a branch fell off the tree but we determined the branch was too heavy with leaves? We do not want to cut the tree down but we also have dogs and family members that enjoy our backyard yearlong. We are worried more branches may fall.
It sounds like it could be a Canker disease.
These links will help you.
https://www.gardeningknowhow.com/ornamental/trees/chinese-pistache/growing-chinese-pistache-tree.htm
http://ipm.ucanr.edu/PMG/GARDEN/PLANTS/chinesepistache.html
