Symptoms and causes. Symptoms. Pemphigus vulgaris Pemphigus is a rare skin disorder characterized by blistering of your skin and mucous membranes. The most common type is pemphigus vulgaris, which involves painful sores and blisters on your skin and in your mouth.
Grafted tomatoes are quite different from the average, regular tomato. Because each plant consists of two plants, fused together, they require some different care and in turn, they give different results.
Alternaria solani is a fungal pathogen, that produces a disease in tomato and potato plants called early blight.The pathogen produces distinctive bullseye patterned leaf spots and can also cause stem lesions and fruit rot on tomato and tuber blight on potato.lternaria solani is a fungal pathogen, that produces a disease in tomato and potato plants called early blight.