Incidence of Leucinodes orbonalis, Guenée (Lepidoptera: Crambidea) in Eggplant Crops in Côte d’Ivoire

African eggplant, Solanum aethiopicum is a most important vegetable in Côte d'Ivoire. It is commercially very accessible and profitable for farmers. It is attacked by several insect pests, including Leucinodes orbonalis. A study was carried out in the locality of Azaguié Ahoua located in the southern of Côte d’Ivoire, to determine the incidence of L. orbonalis on eggplant crops. Four elementary plots, each containing 48 plants, constituted the experimental field. Sampling consisted of randomly selecting 24 plants and counting infested and uninfested shoots. During the fruiting phase, in addition to counting the shoots, infested and uninfested fruits were also counted. Infestation rates of shoots and fruits were calculated. The average infestation rate of shoots, low at the beginning of pre-flowering (7.43 ± 1.2%), gradually increased to a peak of 65.34 ± 3.27 % at full fruiting phase. The average infestation rate of fruits at the beginning of fruiting phase (21.72 ± 1.48 %) also increased, reaching a peak of 83.15 ± 2.24 % at full fruiting. Then, average infestation rates of shoots and fruits decreased to reach low average infestation rates at the end of the cycle of brinjal plants with 14.43 ± 1.36 % and 16.83 ± 1.54 % respectively.