Vol. 7, Issue 3 (2019)
Biocontrol potency of Trichoderma isolates against tea (Camellia sp.) pathogens and their susceptibility towards fungicides
Author(s): Kishor Chand Kumhar and Azariah Babu
Abstract: A total of eleven Trichoderma species were isolated from the tea ecosystem of West Bengal, India and their in vitro evaluation was carried out against Fusarium solani and Pestalotiopsis theae, causing dieback and grey blight diseases of tea, respectively. Results of dual culture study revealed that, these indigenous isolates were found efficient in suppressing the growth of both the phytopathogens, F. solani (54.3-77.1%) and P. theae (49.3-65.8%). Of these, three Trichoderma strains (code KBN-1/14, KBN-2/14 & KBN-29) were chosen further, to study their susceptibility towards fungicides, which are generally used for the management of these phytopathogens. Results indicated that tested Trichoderma strains were highly susceptible to all three fungicides at their recommended dose of application, exhibiting very high level of growth inhibition (86.4 per cent). Thus the local Trichoderma isolates were found effective in managing the targeted phytopathogens. However, use of such fungicides either in combination or soon after the application of Trichoderma formulation should be discouraged to minimize the harmful impact on beneficial BCAs.
Pages: 4192-4195 | 485 Views 196 Downloads
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How to cite this article:
Kishor Chand Kumhar, Azariah Babu. Biocontrol potency of Trichoderma isolates against tea (Camellia sp.) pathogens and their susceptibility towards fungicides. Int J Chem Stud 2019;7(3):4192-4195.
