An Overview of Fungal Antagonists Potential as Bio control Agents Against Paddy Crop Plant Diseases Occurring in the Cauvery-Delta Zone
Journal Title: International Journal of Botany and Research (IJBR) - Year 2017, Vol 7, Issue 4
Abstract
The objective of this study is to review the research work on biological control of various paddy crop plant diseases occurring in the Cauvery-Delta Zone. Due to the presence of plant pathogens, serious losses to agricultural products occur every year. Therefore, plant diseases including pathogens can be treated using biological control methods instead of chemical control methods. According to the plant pathology, the term “bio control” refers to the use of microbial antagonists to suppress diseases. There are several modes of actions of bio control-active microorganisms in controlling plant diseases like hyper parasitism, predation, antibiosis, cross protection, competition for site and nutrient, and induced resistance. Bio control agents application can be made using various methods that include: application directly to the infection site, application at one place and occasional application. Mainly, application of bio control products can be found against seed borne and soil borne pathogens. These products have been found to be effective in protecting several major crops such as wheat, rice, corn, and cotton against pathogens. A definite improvement has been found in the biological control of plant diseases, but still requires much more development and investigations to solve the upcoming and previous issues. As a requirement of having more effective biological control strategies in the future, it is difficult to carry out more research studies on some less developed aspects of bio control, understanding the importance of the impact of environmental factors on bio control agents, mass production of bio control agents. The bio control of plant diseases have a bright and promising future outlook and with the growing demand for bio control products, it is highly remarkable to use the biological control as an effective way to control plant diseases, increase crop yield, protect the environment and biological resources and approach a sustainable agricultural system.
Authors and Affiliations
Basobi Mukherjee, N. Uma Maheswari
Keywords
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