Authors : Koshraj Upadhyay and Bhupendra Bhatta
Abstract: Rice blast caused by M. oryzae is one of the most devastating fungal disease of rice in the world. The crop suffers from the chronic fungal pathogen from seedling to adult plant stages affecting leaves, collar, node, panicle, neck, roots, seeds, etc. The main objectives of this review paper is to know the symptoms of rice blast disease, its epidemics and diffferent measures of effective disease control. Resistant varieties and chemical control are most effective means of disease control. Findings shows >100 resistant genes and 350 quantative trait loci’s for blast resistant has been identified in rice. Extensively used persistant chemicals should replaced by Neem based commercial pesticides and biocontrol agents like Pseudomonas fluorescens, Streptomyces for sustainable and ecofriendly control of rice blast havoc. Disease forecasting methods developed by researchers provides pre-information of disease occurrence that helps to design control measures combination for effective management of the disease.
Koshraj Upadhyay and Bhupendra Bhatta, 2020. Rice Blast (Magnaporthe oryzae) Management: A Review. Agricultural Journal, 15: 42-48.