author(s)
Kodjo Adaba Tano Thierry, Kwadjo Koffi Eric, Doumbia Mamadou and Kra Kouadio Dagobert

abstract
Coconut (Cocos nucifera) cultivation, the main coastal crop in Côte d'Ivoire, is compromised by the coconut lethal yellowing disease. Nedotepa curta (Homoptera: Cicadellidae) carries the phytoplasma responsible for this disease. This study focused on the life history of this potential vector and the seasonal impact on some of its biological parameters in Grand-Lahou. Individuals of N. curta were placed in rearing units made by mosquito nets, set on some coconut palms leaflets and followed until the females laid egg. Emerged larvae were followed until adult stage, at each season of the year. As a result, the average number of eggs laid was 26.95 ± 1.20 eggs per batch. Eggs hatch on average 9.65 ± 0.67 days after laying. The total duration of larval development, which occurs in five stages, was 23.41 ± 2.72 days on average, with the duration of stage 1 and stage 5, respectively the shortest (3.75 ± 0.79 days) and the longest (6.65 ± 0.78 days). The larval survival rate is higher than 90% for all stages of development. Dry seasons induce reduction of embryonic and larval development, while promoting an increase in the hatching rate.