According to Encyclopedia Britannica- Plant disease is an impairment of the normal state of a plant that interrupts or modifies its vital functions. The effects of a disease that can be observed are called the symptoms. A disease can be identified depending on the symptoms as different diseases show different symptoms. …

Over-wintering and/or over-summering of pathogen Over-seasoning is an evolutionary developed technique followed by many pathogens to survive the adverse period of their life cycle. It has been developed in the pathogens so that they can complete their life cycle and can spread their infections in the next year. The pathogens …

Infection When the inoculum starts procuring nutrients from the susceptible tissues of the host, the infection starts. This is the first stage from where the disease starts to develop. As the pathogen devours soluble products from the cell, various symptoms start appearing. Discolorness, malformation, necrotic areas are common in the …