Some of the mental illnesses that can be associated with the existence of synthetic marijuana abuse can include: 1  Bipolar disorder. 2  Schizophrenia. 3  Posttraumatic stress disorder. 4  Attention-deficit/hyperactivity disorder. 5  Anxiety disorders. 6  Depressive disorders. 7  Oppositional defiant disorder. 8  Conduct disorder.
Corn smut, also known as common smut, is a common disease of sweet corn caused by the fungus Ustilago maydis.This disease rarely kills corn plants, but usually causes the production of smaller ears. Corn smut commonly develops on the tassels, ears, leaves, and shoots of corn as a gall.rystal Floyd. Photo by M. Grabowski. Corn smut, also known as common smut, is a common disease of sweet corn caused by the fungus Ustilago maydis. This disease rarely kills corn plants, but usually causes the production of smaller ears.
Comments. Submit. Some varieties of sweet corn are more resistant to disease than others. Stewart's bacterial wilt, smut, common rust and sorghum downy mildew are just a few of the fungus and bacteria that can affect quality and yield of a corn crop.Wet weather, planting schedules and monthly temperatures can all play a crucial role in sweet corn disease.tewart's bacterial wilt is a fungus caused by the bacterium Xanthomonas stewartii, which is carried by corn flea beetles that overwinter in the soil. The disease is transmitted when the beetles feed on the corn seedlings in the spring. Symptoms of the disease include foliage wilting, stunted plant growth and death.