The solution to tree crowding is tree removal the year the lower limbs touch. It is best to remove trees immediately after a heavy crop. The winter of 1995-96 will be an excellent time to remove trees because the 1996 crop is going to be very low in Texas. Cotton Root Rot. There are many disease which are serious problems for Texas pecan growers.
Death comes fast in late summer with all the leaves turning brown and remaining on the tree.
This is a major cause of tree death in Mexico where a combination of high soil pH, high soil temperature and poor drainage occur. Under these conditions, it is almost impossible to control Cotton Root Rot. In Texas, the problem occurs mainly in the southern counties, near Mexico where similar conditions exist. Rapid tree death in late summer or early fall with no shoots developing from the tree crown is the most common symptom. The fungus can be identified with a microscope.