Analysis of efficacy of a biocontrol agent to reduce the transmission of infection in damping-off epidemics

Wilfred Otten, Anne Bates, Christopher A. Gilligan

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

We demonstrate a simple analysis based on generic epidemiological processes to quantify the efficacy of Trichoderma harzianum to control damping-off disease caused by Rhizoctonia solani. The method quantifies the rate at which disease is transmitted in a population of plants, and we use the reduction in disease transmission as a measure for efficacy of the control agent. Using epidemics in replicated microcosms we show how the method can be used to quantify i) a reduction in the secondary transmission rate; ii) the effect of soil type on the efficacy of biocontrol and iii) the effect of the timing of the application on the efficacy of biocontrol.
Original languageEnglish
Title of host publicationProceedings of a meeting of the WGs
Subtitle of host publicationManagement of plant diseases and arthropod pests by BCAs and their integration in agricultural systems
EditorsYigal Elad, Ilaria Pertot, Annie Enkegaard
Place of PublicationDarmstadt
PublisherIOBC-WPRS
Pages275-279
Number of pages5
ISBN (Print)9290671708
Publication statusPublished - 2004
EventIntegration 2004: Management of plant diseases and arthropod pests by BCAs and their integration in agricultural systems - Istituto Agrario di S. Michele all’Adige (IASMA), Trentino, Italy
Duration: 9 Jun 200413 Jun 2004

Conference

ConferenceIntegration 2004
CountryItaly
CityTrentino
Period9/06/0413/06/04

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    Otten, W., Bates, A., & Gilligan, C. A. (2004). Analysis of efficacy of a biocontrol agent to reduce the transmission of infection in damping-off epidemics. In Y. Elad, I. Pertot, & A. Enkegaard (Eds.), Proceedings of a meeting of the WGs: Management of plant diseases and arthropod pests by BCAs and their integration in agricultural systems (pp. 275-279). IOBC-WPRS. http://www.iobc-wprs.org/pub/bulletins/iobc-wprs_bulletin_2004_27_08.pdf