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Insect-borne plant diseases recur commonly in wild plants and in agriculturalcrops, and are responsible for severe losses in terms of produce yield andmonetary return. Mathematical models of insect-borne plant diseases aretherefore an essential tool to help predicting the progression of an epidemicdisease and aid in decision making when control strategies are to beimplemented in the field. While retaining a generalized applicability of theproposed model to plant epidemics vectored by insects, we specificallyinvestigated the epidemics of Flavescence dor\'ee phytoplasma (FD) in grapevineplant Vitis vinifera specifically transmitted by the leafhopper Scaphoideustitanus. The epidemiological model accounted for life-cycle stage of S.titanus, FD pathogen cycle within S. titanus and V. vinifera, vineyard setting,and agronomic practices. The model was comprehensively tested againstbiological S. titanus life cycle and FD epidemics data collected in variousresearch sites in Piemonte, Italy, over multiple years. The work presented hererepresents a unique suite of governing equations tested on existing independentdata and sets the basis for further modelling advances and possibleapplications to investigate effectiveness of real-case epidemics controlstrategies and scenarios.

Conceptual and mathematical modeling of insect-borne plant diseases: theory and application to flavescence doree in grapevine