|Author: ||J.S. Dhiman|
Research on biological control (BC) of soil-borne plant pathogens affecting fruit plants has been concentrated on the use of species of Trichoderma, Aspergillus, Trichothecium and Epicoccum in India.
There are some reports on the use of antagonistic bacteria like Bacillus subtilis, Enterobacter aerogenes, Pseudomonas fluorescence, Streptomyces species and actinomycetes in disease control.
The Trichoderma grown on wheat-bran saw-dust medium can be exploited for commercial use against fruit crop diseases.
The specific need of India is of complete disease control, which the biological agent seldom offers due to the problems associated with distribution of pathogen propagules in soil.
Most of the BC reports are based on in vitro work which often fails under field conditions.
The agroclimatic variations make the BC efficiency differ with the place.
Therefore, epidemiological research is needed to define more clearly the conditions required for the successful use of antagonists.
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