Prevalence of tomato’s bacterial and fungi diseases in inera farako-ba station in Burkina Faso

Abstract

In Burkina Faso, plant pathogens constitute constraints on tomato production. This study makes the diagnostic on the majority of diseases at the experimental station in Farako-Bâ. The incidence and severity were evaluated in a expérimental design to evaluate the agronomic performances of 208 tomato accessions. An inventory of fungal and bacterial species was made from symptomatic samples. Morphological characterization was carried out using isolates of the majority species. The following fungal diseases: early blight, Sigatoka blight, corynesporiosis, fusarium wilt and gray mold have been identified with respective incidences of 45%, 34%, 13%, 5% and 3%. Furthermore, bacterial diseases such as bacterial speck, bacterial scab, bacterial canker and bacterial wilt appear on the studied tomato plants with respective prevalences of 58%, 26%, 15% and 1%. The severity of all these diseases on the different accessions gradually evolves until reaching a high number of leaves, stems and fruits. The induced lesions were significantly different between the strains. Given the importance of the disease, molecular characterization of the species is necessary to envisage effective control.