Organic growers have available a large array of biopesticides that may be applied for the management of plant diseases. Pseudomonas chlororaphis isolates are used as biopesticides in agriculture as they protect plants from various microbial diseases, insects, and nematodes. These isolates directly suppress microbial pathogens, insects, and nematodes by producing a variety of metabolites. The most widely used microbial pesticides are subspecies and strains of Bacillus thuringiensis, or Bt. Each strain of this bacterium produces a different mix of proteins and specifically kills one or a few related species of insect larvae.

Bio pesticides are living organisms which can intervene the life cycle of insect pests in such a way that the crop damage is minimized. The agents employed as biopesticides, include parasites, predetors and disease causing fungi, bacteria and viruses, which are the natural enemies of pests. Different organisms such as beetles, wasps, mites and fungi can be used as biocontrol agents to stop introduced weeds and insects from damaging natural habitats, taonga species, and farms in an environmentally friendly way. 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. Biological control included bacteriotherapy, bacteriophage therapy, malaria therapy, probiotics, and the use of living maggots. In all cases the organisms themselves rather than a product of their metabolism were used as the potentially curative agent. 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. In organic farming, a solution of Azotobacter and synthetic nitrogenase is used to control different insects, weeds, and nematodes. The use of biopesticides protects against fluoroacetamide and other chemicals from contaminating the soil. Additionally, they are less likely to affect both human and animal skin.

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. Biocontrol agents or microbial antagonists prevent infection of the host plant by the pathogen, or establishment of the pathogen in the host plant. The principal mechanisms for the control have been assumed to be those that act primarily upon the pathogens. 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. Biological control agents such as these include predators, parasitoids, pathogens, and competitors. Biological control agents of plant diseases are most often referred to as antagonists. Biological control agents of weeds include seed predators, herbivores, and plant pathogens. Microbial biopesticides contain microorganisms as the main active ingredient that function as biological control agents, affecting the pathogen directly or indirectly through the compounds they produce or by stimulating specific plant responses. The most widely used microbial pesticides are subspecies and strains of Bacillus thuringiensis, or Bt. Each strain of this bacterium produces a different mix of proteins and specifically kills one or a few related species of insect larvae. Biopesticides also exist for the management of weeds, insects, and nematodes. While generally a logical fit for managing diseases in organic crops, there are some biopesticides that are NOT approved for organic production. In organic farming, a solution of Azotobacter and synthetic nitrogenase is used to control different insects, weeds, and nematodes. The use of biopesticides protects against fluoroacetamide and other chemicals from contaminating the soil. Additionally, they are less likely to affect both human and animal skin.

Dear Dr Eslam Mohamed Albastawisi thank you for your contribution to the discussion

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 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. Biocontrol agents or microbial antagonists prevent infection of the host plant by the pathogen, or establishment of the pathogen in the host plant. The principal mechanisms for the control have been assumed to be those that act primarily upon the pathogens. Microbial biopesticides contain microorganisms as the main active ingredient that function as biological control agents, affecting the pathogen directly or indirectly through the compounds they produce or by stimulating specific plant responses. Biological control agents such as these include predators, parasitoids, pathogens, and competitors. Biological control agents of plant diseases are most often referred to as antagonists. Biological control agents of weeds include seed predators, herbivores, and plant pathogens. Biological control is one of the control measures viz. through the use of microorganisms to suppress the growth and development of bacterial plant pathogen and ultimately reduce the possibility of disease onset. Biopesticides also exist for the management of weeds, insects, and nematodes. While generally a logical fit for managing diseases in organic crops, there are some biopesticides that are NOT approved for organic production. In organic farming, a solution of Azotobacter and synthetic nitrogenase is used to control different insects, weeds, and nematodes. The use of biopesticides protects against fluoroacetamide and other chemicals from contaminating the soil. Additionally, they are less likely to affect both human and animal skin. Bio pesticides are living organisms which can intervene the life cycle of insect pests in such a way that the crop damage is minimized. The agents employed as biopesticides, include parasites, predetors and disease causing fungi, bacteria and viruses, which are the natural enemies of pests.