In this episode of the Southwest Yard & Garden series, John White discusses common plant problems with the help of Dr. Natalie Goldberg an extension plant pathologist. The common shrub problem discussed is Powdered mildew, which is shown on a japonica shrub. The common tree problem discussed is cotton slime flux or bacterial wet wood on a cottonwood tree. They begin by describing the common symptoms to look out for as well as conditions for infection and growth in the dry southern climate. They then continue to diagnose the stage of infection and conclude by explaining any preventative or controlled methods that are possible for handling the infections.