Gnénakan Yeo^1,, Kouamé Konan Didier², N’Cho Achi Laurent³, Allé Yamoussou Joseph¹, Fondio Lassina⁴

An inventory of the sugarcane parasitic nematode population in Ferkessédougou was carried out during the 2020-2021 and 2021-2022 cropping seasons. The aim of this research was to study the prevalence and abundance of the main parasitic nematodes associated with sugarcane. To this end, samples of sugarcane roots were taken from 10 agronomic trials. Nematodes were extracted from the roots of 15 cultivated varieties, at depths ranging from 02 to 10 cm. The results show twelve (12) genera of parasitic nematodes. The existence of a diversity of plant-parasitic nematodes of sugarcane was confirmed. Radopholus, Pratylenchus, Meloidogyne, Hoplolaimus, Hirschmanniella, Caloosia, Xiphinema and Tylenchulus were frequent and abundant, as they were observed in over 50% of root samples at population levels above 20 nematodes/g root. Varieties M1400/86, FR96070 and M2238/89 recorded the most plant-parasitic nematodes in the roots, with total densities of 52161.48, 28214.29 and 24528.10 nematodes/100g roots respectively. These 8 groups of nematodes can be considered the most damaging to sugarcane cultivation in the Ferkessédougou region, where they are important.

Sugarcane parasitic nematodes, diversity, Pratylenchus, Meloidogyne, Côte d’Ivoire