Biological control is a method of plant disease management by inhibiting plant pathogens, improving plant immunity, and/or modifying the environment through the effects of beneficial microorganisms, compounds, or healthy cropping systems. A wide variety of bacterial genera, including Agrobacterium, Alcaligenes, Arthrobacter, Bacillus, Enterobacter, Erwinia, Pseudomonas, Rhizobium, Serratia, Stenotrophomonas, Streptomyces, and Xanthomonas have been described to have plant disease protection activity against fungal and bacterial pathogens.

A wide variety of bacterial genera, including Agrobacterium, Alcaligenes, Arthrobacter, Bacillus, Enterobacter, Erwinia, Pseudomonas, Rhizobium, Serratia, Stenotrophomonas, Streptomyces, and Xanthomonas have been described to have plant disease protection activity against fungal and bacterial pathogens. Biological control is a method of plant disease management by inhibiting plant pathogens, improving plant immunity, and/or modifying the environment through the effects of beneficial microorganisms, compounds, or healthy cropping system.Biological control or biocontrol is a method of controlling pests, such as insects, mites, weeds, and plant diseases, using other organisms. It relies on predation, parasitism, herbivory, or other natural mechanisms, but typically also involves an active human management role. First successful classical biological control of a weed (prickly pear) was achieved unintentionally in India when cochineal insect, Dactylopius ceylonicus was mistakenly introduced from Brazil in place of D. cacti to produce dye from Opuntia vulgaris. This incident led to biological control of weeds. The control of the growth of an insect or pest by using a biological agent or living organism. This process is also referred to as biological control. Biocontrol is used to get pest-free fields. It is a very effective and long-term method to remove invasive plants.

On the other hand, biological control methods include the usage of bio-pesticides that are less toxic for the environment. Bio-pesticides is Bacillus thuringiensis, which is an insect pathogen that kills a wide range of insect larvae. Biological products for disease management include biofungicides, biobactericides, and bionematicides to manage fungi, bacteria, and nematodes, respectively. Product development is based on different modes of action that target the pathogen, plant, or environment. Biological control is a method of plant disease management by inhibiting plant pathogens, improving plant immunity, and/or modifying the environment through the effects of beneficial microorganisms, compounds, or healthy cropping systems. Biological control or biocontrol is a method of controlling pests, such as insects, mites, weeds, and plant diseases, using other organisms. It relies on predation, parasitism, herbivory, or other natural mechanisms, but typically also involves an active human management role. Biological control, the use of living organisms to control pests the natural enemy such as a parasite, predator, or disease organism is introduced into the environment of a pest or, if already present, is encouraged to multiply and become more effective in reducing the number of pest organisms. A common biocontrol agent for control of plant diseases is Trichoderma. Trichoderma is a free-living fungus that is used for foliar application, seed treatment and soil treatment for suppression of various disease-causing fungal pathogens. A wide variety of bacterial genera, including Agrobacterium, Alcaligenes, Arthrobacter, Bacillus, Enterobacter, Erwinia, Pseudomonas, Rhizobium, Serratia, Stenotrophomonas, Streptomyces, and Xanthomonas have been described to have plant disease protection activity against fungal and bacterial pathogens. Microbial biological control agents (MBCAs) are applied to crops for biological control of plant pathogens where they act via a range of modes of action. Some MBCAs interact with plants by inducing resistance or priming plants without any direct interaction with the targeted pathogen.