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
StatePublished - 2004
EventIntegration 2004 - Trentino, Italy

Conference

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

Fingerprint

damping off
disease transmission
biological control
methodology
secondary transmission
Rhizoctonia
Trichoderma harzianum
application timing
biological control agents
soil types

Cite this

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). Darmstadt: IOBC-WPRS.

Otten, Wilfred; Bates, Anne; Gilligan, Christopher A. / Analysis of efficacy of a biocontrol agent to reduce the transmission of infection in damping-off epidemics.

Proceedings of a meeting of the WGs: Management of plant diseases and arthropod pests by BCAs and their integration in agricultural systems. ed. / Yigal Elad; Ilaria Pertot; Annie Enkegaard. Darmstadt : IOBC-WPRS, 2004. p. 275-279.

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

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Otten, W, Bates, A & Gilligan, CA 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. IOBC-WPRS, Darmstadt, pp. 275-279, Integration 2004, Trentino, Italy, 9-13 June.

Analysis of efficacy of a biocontrol agent to reduce the transmission of infection in damping-off epidemics. / Otten, Wilfred; Bates, Anne; Gilligan, Christopher A.

Proceedings of a meeting of the WGs: Management of plant diseases and arthropod pests by BCAs and their integration in agricultural systems. ed. / Yigal Elad; Ilaria Pertot; Annie Enkegaard. Darmstadt : IOBC-WPRS, 2004. p. 275-279.

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

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N2 - 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.

AB - 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.

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BT - Proceedings of a meeting of the WGs

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Otten W, Bates A, Gilligan CA. Analysis of efficacy of a biocontrol agent to reduce the transmission of infection in damping-off epidemics. In Elad Y, Pertot I, Enkegaard A, editors, Proceedings of a meeting of the WGs: Management of plant diseases and arthropod pests by BCAs and their integration in agricultural systems. Darmstadt: IOBC-WPRS. 2004. p. 275-279.