Summer rains bring out the best in desert plants, evidenced by the lush green that appears after monsoon season settles in.
However, if you have plants in your Tucson and Green Valley landscaping that are not native or desert adapted, this is also the time of year Texas Root Rot appears.
How can you tell? Texas Root Rot affected plants will seemingly die overnight. One morning you will walk outside and see the entire tree or shrub completely wilted. This sudden event means that by the time you notice there is a problem, the plant is a goner.
Texas Root Rot is a soil borne disease, for which there is no cure. The upside to this, is it only affects species of trees that are difficult to grow here anyway. Susceptible species include the ash, California pepper, African sumac and all stone fruit trees, such as peach, plum and apricots.
NEVER replant another susceptible species in a planting hole where Texas Root Rot is a known problem. If you really want to replant the area, it’s best to have the roots of the dead plant examined under a microscope by the University of Arizona Extension Service, to determine if that indeed was the problem. Other things can cause wilting, such as under or over-watering.