Plant Diseases/Magnolia problem
We have had 1 of 3 small magnolias go from what we thought was lack of water too,. After cutting many dead leaves off today, many branches still appear alive. However, we can also see disease growing in some. We see some branches half infected, half lively and it goes that way to the roots. Is it a fungus? I have nursed it through Texas drought for a year now, but is it done?
Thee symptoms may represent a root/soil issue. A closer exam would be required to key into the cause. You may examine the base of the tree for any evidence of bark damage. If nothing is apparent, consider contacting the Cooperative Extension Service in your county to arrange for a lab test and home visit by a staff member. An on site "house call" can often reveal some underlying issues.