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by ISHWAR PRAKASH SHARMA, Yogendra Singh Gusain, Anil Kumar Sharma
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Symbiotic soil microorganisms such as Arbuscular mycorrhiza (AM) and plant growth promoting rhizobacteria (PGPRs) have potential to control soil-borne diseases. Among all soil borne diseases root-knot disease is a most hazardous in agriculture fields which is caused by Meloidogyne spp. In general, these symbiotic soil microorganisms and Meloidogyne spp. share same niche in the soil and roots. These symbiotic organisms induce and/or synthesize various growth promoting and biocontrolling chemicals which are very useful to sustainable agriculture and environment.  Hence, they may be most effective and important biocontrol tools for the managements of such hazardous diseases in agricultural fields. Mostly all the agricultural crops are adversely affected by at least a root-knot nematode and globally higher yield loss recorded every year. Both symbiotic microorganisms are responsible for the managing agricultural diseases due to developing resistance in plants against pathogens. This article strongly supports these soil symbionts to managing root-knot disease which are economically and environmentally secure natural biocontrol tool against the soil borne pathogens.