Antagonistic potential of biocontrol agents against Botryodiplodia theobrome causing die-back of bottle brush (Callistemon citrinus)

Chakraborty, M. R and Dutta, S. and Ojha, S. and Chatterjee, N. C. (2004) Antagonistic potential of biocontrol agents against Botryodiplodia theobrome causing die-back of bottle brush (Callistemon citrinus). Acta Botanica Hungarica, 46 (3-4). pp. 279-286. ISSN 0236-6495

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Abstract

Biological control of die-back of bottle brush (Callistemon citrinus) caused by Botryodiplodia theobrome was made with the application of antagonistic agents like Trichoderma viride, T. lignorum, T. harzianum, Aspergillus niger and Penicillium citrinum. The effect of volatile and non-volatile antibiotics of Trichoderma origin on growth inhibition of the die-back pathogen was studied. T. harzianum showed maximum growth inhibition (75.33%) of the pathogen through mycoparasitism and the non-volatiles produced by the same agent exhibited its excellent antagonism to the growth of the pathogen (91.11%) under in vitro condition and that the effect was also proved to be durable.

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