Question

Define Bio-control. Which fungus is used for the treatment of plant diseases?

Answer 1

Hint: The organism that suppresses the pest or pathogen is referred to as the biological control agent (BCA). Mycorrhizal plants are often more resistant to diseases, such as those caused by microbial soil-borne pathogens.

Complete answer:
To solve this question, we have to know about bio-control. Biological control is the phenomenon of controlling disease by applying biological agents to a host animal or plant that prevents the development of disease by a pathogen. Considering plant diseases the biocontrol agents are commonly fungal or bacterial strains extracted from the rhizosphere or endosphere. Viruses may also utilize bio-control agents and there is a beginning of interest in the utilization of bacterial viruses for curing of plant diseases.
The phenomenon bio-control applies to the utilization of bacterial antagonists to dominate diseases and also use the pathogens which are host specific to control weed growth. Biological control mentions the meaningful use of resident living organisms, other than disease resistant host plants, to dominate the functions and populations of one or multiple plant pathogens.

Mycorrhizae are the fungi used in the treatment of plant diseases.

Note:A mycorrhiza is a symbiotic attachment between a green plant and a fungus. These associations have been found to assist in plant defense both above and belowground. Mycorrhizas release enzymes that are harmful or toxic to nematodes.