Disease management – Principles Exclusion of the Pathogen/avoidance,/eradication/protective of pathogens
Disease management – Principles Exclusion of the Pathogen: The aim is to prevent entry of a pathogen in a field or area (state, country) suppose free from that pathogen. 1. Quarantine : Plant quarantine aims at preventing entry of the pathogens from infested areas into non-infested area. 2. Inspection and Certification: The crops grown exclusively for seed are periodically inspected for presence of diseases that are disseminated by seed. Necessary precautions are taken to remove the diseased plants. The method is supposed to prevent regional and inter-regional spread of the pathogen. Seed Treatment Seeds, tubers, grafts, bulbs and other propagative materials can be given heat, gas or chemical treatments to exclude the pathogen present in or over them. Seed treatment is mandatory for seed agencies supplying certified seed. 4. Eradication of Insect vectors: Since the flight of insects cannot be checked so the crop should be given preve...