In Phytopathology is the name of a disease of many plants, which usually occurs in the trunks and branches of fruit trees. It can be initiated into the wounds of the poorly treated grafts. Rubber patches form on wounds, where fungi thrive. It is rotting of the base of the trunk, the neck of the plant and adventitious roots. The most widespread consequence is inadequate development and premature fall of the fruits. Finally there is death of the plant. It is usually caused by fungi of the genus Phytophthora (species nicotiane and citrosphthora), which in turn facilitate the spread of other pathogenic fungi found in the soil such as those of the genera Fusarium and Penicillium. .
