Antagonism

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In phytopathology, antagonism refers to the action of any organism that suppress or interfere the normal growth and activity of a plant pathogen, such as the main parts of bacteria or fungi.

These organisms can be used for pest control and are referred to as ``Biological Control Agents´´. They may be predators, parasites, parasitoides, or pathogens that attack harmful insect, weed or plant disease.

'Antagonism - Mechanism'

Antibiosis example- enzymes, toxins, antibiotics. Direct parasitism example- biotrophic or necrotrophic. competition example- for nutrients. Induced resistance(indirect).

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