Vol. 6, Issue 1 (2019)
Incidence des insectes et des nématodes sur la production de l’aubergine Solanum aethiopicum Linné, 1756 Variété Djamba F1 dans la zone périurbaine d’Abidjan, Côte d’Ivoire
Author(s): Johnson Félicia, Gbon Gueu Adolphe, Boga Jean Pierre, Aby N’ Goran
Abstract: Cultivation of eggplant is threatened by numerous pests that cause damages on plants at all stages of their development. To reduce damages on Solanum aethiopicum Linné, 1756, varieties Djamba F1 was investigated in Bringakro, a village close to Bingerville in the District of Abidjan, Côte d’Ivoire. Thus, entomofauna and nematofauna were surveyed in eggplant cultivations by carrying out an evaluation of pest’s damages and measuring yield during 3 months from October to December. A total of 788 insects, divided into 40 genera, 29 families and 9 orders were inventoried. Coleoptera and Hymenoptera were the most abundant Orders covering respectively 48.86% and 23.86% of captured insects. In addition to these insects, a significant number of phytoparasitic nematodes of the genus Meloidogyne were extracted with an average density of 625 nematodes / 5 g of roots. These plant parasitic nematodes were responsible for a yield loss of 14.48 t / ha, or 86.37% of total losses. Losses due to insect attack are 0.68 t / ha or 4.07% of total losses. In opposition to our expectations nematodes of the genus Meloidogyne are responsible for more than 86% of the damages. Thus, nematicide treatments must be applied to the soil before cultivation of vegetables in general particularly.