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Modelling of Infection Mildew of Taro (Phytophthora colocasiae)

Abstract : Mildew taro caused by Phytophthora colocasiae affection is the most devastating of taro cultivation in Cameroon since 2010. It has been studied in leading the influence that can have a parameter considered favourable in the kinetics of the disease, and secondly, the interaction between plots through zoospores that can move from one field to another while estimating their dispersal throughout the plant. These models have allowed us to demonstrate that the duration of pathogen latency period, the number of sporangia produced on the surface of a lesion as well as the severity of the infection taken individually, are parameters to be taken into account in the development of a variety resistant to late blight taro. The dynamics of the fungus over time is represented by a matrix. The latter was used to establish a detailed estimate of the number of new infections caused by a sporangium placed in a landscape of healthy leaves. This number is known as the net rate of breeding base name (R0). The incidence and severity of disease are significantly reduced when the rate is less than or equal to one. So our approach can be used to guide research programs or evaluate the effectiveness of control strategies to design throughout the plant.
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https://hal.inria.fr/hal-01860784
Contributor : Jean-Luc Gouzé <>
Submitted on : Friday, May 28, 2021 - 1:47:09 PM
Last modification on : Friday, May 28, 2021 - 1:48:43 PM

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Léonel Gautier Djouokep, Charles Asseng Carnot, Samuel Bowong Tsakou, Zachée Ambang, Fabrice Monkam Tchamaha. Modelling of Infection Mildew of Taro (Phytophthora colocasiae). Plant, Science Publishing Group, 2016, 4 (6), pp.56-70. ⟨10.11648/j.plant.20160406.13⟩. ⟨hal-01860784⟩

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