Structure of the weed in Solanaceae Crops in Divo, Sinfra and Djebonoua (Côte D’ivoire)

The study focused on the structure of the weed of Solanaceae crops (eggplant, chilli and tomato) in Côte d'Ivoire, specifically in Divo, Sinfra and Djebonoua. Its objective is to characterize the weed using botanical and biological parameters. Thus, itinerant surveys were carried out during the 2013 cropping season in Solanaceae crops. This work permits to identify 40 weed species belonging to 32 genera distributed in 20 families. The dominant families are: Euphorbiaceae, Cyperaceae, Poaceae, Asteraceae, Amaranthaceae and Malvaceae. Among these families, the Asteraceae and Poaceae are the most diversified. Biologically, the therophytes clearly dominate this flora followed by nanophanerophytes. The study area has a heterogeneous floristic distribution. The composition, richness and diversity of flora, the biological spectrum and the similarity between the weed of the different towns have been determined in the Solanaceae crops. These data are necessary for the implementation of effective weed management strategies.