The section on utilizing host plant resistance includes identification of resistant sources, mapping QTLs and their validation, identification of candidate gene(s) and their introgression through marker-assisted selection. In this review, we provide an up-to-date comprehensive description of host-pathogen interactions, various control measures such as cultural, chemical, and biological as well as utilizing host plant resistance. As there are no sources of complete resistance, management through chemical control has been the most adopted method for sheath blight management. Its diverse host range and ability to remain dormant under unfavorable conditions make the pathogen more difficult to manage. Use of high yielding semi dwarf cultivars with dense planting and high dose of nitrogenous fertilizers accentuates the incidence of sheath blight in rice. Sheath blight caused by necrotrophic fungus Rhizoctonia solani Kühn is one of the most serious diseases of rice. 2Division of Plant Pathology, ICAR-Indian Agricultural Research Institute, New Delhi, India.1Division of Genetics, ICAR-Indian Agricultural Research Institute, New Delhi, India.

Manoranjan Senapati 1 Ajit Tiwari 1 Neha Sharma 1 Priya Chandra 2 Bishnu Maya Bashyal 2 Ranjith Kumar Ellur 1 Prolay Kumar Bhowmick 1 Haritha Bollinedi 1 K.

Bacterial blight coffee