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.
|Title of host publication||Proceedings of a meeting of the WGs|
|Subtitle of host publication||Management of plant diseases and arthropod pests by BCAs and their integration in agricultural systems|
|Editors||Yigal Elad, Ilaria Pertot, Annie Enkegaard|
|Place of Publication||Darmstadt|
|Number of pages||5|
|Publication status||Published - 2004|
|Event||Integration 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 2004 → 13 Jun 2004
|Period||9/06/04 → 13/06/04|
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.