Year: 2015 | Month: March | Volume 8 | Issue 1
Evaluation of suitable antagonists in the management of early blight of tomato cultivar CO-3
DOI:10.5958/2230-732X.2015.00017.0
Abstract:
Early blight of tomato is one of the most destructive diseases caused by Alternaria solani causing considerable loss to quality and quantity of fruits. To avoid chemical fungicides in the management of this menace, soil borne rhizospheric organisms were isolated and evaluated against the pathogen. Different antagonists i.e Aspergillus sp. Trichoderma sp. Pseudomonas sp. and Bacillus sp. were used against most virulent isolates of A. solani under in vitro and in vivo conditions. Maximum in vitro inhibition of mycelial growth of Alternaria solani was observed in case of Trichoderma sp. (87.69%) followed by Aspergillus sp. (84.23%) as compared to control. Under glass house conditions Trichoderma sp. exhibited a similar efficacy with a percent disease control ranging from 82.6-91.3.
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