hewing gum is different from other. confections because it contains gum. base, which is the insoluble rubbery mass, called a cud or bolus, that remains in the. mouth. Historically, people have chewed. various insoluble materials for eons to. cleanse the mouth and teeth and to abate. thirst.
Late blight in both tomatoes and potatoes is caused by the oomycete Phytophthora infestans, and is a worldwide destructive disease. Under favorable weather conditions, tomato and potato crops can be destroyed within days. Cool, moist conditions are considered most favorable for late blight to develop and spread.
Black spots on your tomato leaves and stem could be a fungal disease. These are commonly called leaf blights or leaf spots. Below is a link to a picture of what the symptoms of this disease typically looks like. These diseases are promoted by cool, wet conditions like we had this spring.