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Louisiana Plant Health Management: Solving Plant Health Problems Caused by Biotic and Abiotic Stresses
Lichens are fascinating organisms. They are composed of two different organisms – a fungal partner and a photosynthetic partner in a symbiotic relationship.
Symptoms and look-alikes.
Oleander leaf scorch (OLS) is a deadly disease of oleander that was first reported in California in the early 1990s.
Rose rosette disease is caused by a virus known as Rose rosette virus. It is a devastating disease of roses – particularly since all cultivars are susceptible.
Bacterial gall on Loropetalum (Loropetalum chinense) is caused by a plant pathogenic bacterium called Pseudomonas savastanoi.
Sweet olive is susceptible to a bacterial disease called leaf scorch, which is caused by Xylella fastidiosa.
Boxwood blight, also known as box blight, is a fungal disease caused by Calonectria pseudonaviculata (Cylindrocladium pseudonaviculata, C. buxicola).
Like Spanish moss, ball moss is an epiphyte and belongs to family Bromeliaceae.
