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.
Light Source. Incandescent light bulbs produce heat, which can burn tomato foliage and cause the plants to dry out too quickly. Standard fluorescent light bulbs are generally cool to the touch, so they won't overheat plants. If the foliage touches these bulbs for a short time, damage won't usually occur.