The vast majority of diagnostic questions I receive each year are related to trees with health issues. Many of these issues could be avoided by proper (and consistent) care of the tree from the day it is planted. Sometimes things do go wrong, and knowing what to do can be instrumental in reviving the health of a tree. Trees have the amazing ability to “compartmentalize” diseased and damaged tissue, and to produce healthy tissue around it. If a tree has been stressed by environmental issues such as compaction in the [...]

Anyone who has planted Periwinkle, or Annual Vinca, in the spring in Central Texas will tell you “that plant always dies when I plant it”. Well, there is a reason for that! Periwinkle, especially in the “old” days, before resistant varieties were available, was never grown until the cool wet weather of spring was behind us. It absolutely thrives in the scorching hot summers, but give it rain and cool weather, and disease takes over!                 Phytophthora fungus is the causal organism for [...]

Those of you who have heard the adage “February through June DO NOT PRUNE” probably know that it is in reference to the spread of Oak Wilt in  relation to the timing of pruning of susceptible trees. With Oak Wilt appearing in so many locations in Central Texas, it is safer to complete pruning by February 1st, before the temperatures become milder and the Nitidulid Beetle begins to become active after the winter. This beetle is responsible for transmitting the Oak Wilt Fungus from fungal mats on Red Oaks to [...]