Zida I., Bastide B., Sawadogo A., Seghieri Josiane. (2024). Distribution and pest status of edible caterpillar, Cirina butyrospermi Vuillet (Lepidoptera : Attacidae) in Southwest of Burkina Faso : case of the transect Koumbia-Dano. International Journal of Tropical Insect Science, [Early access], p. [11 p.]. ISSN 1742-7584.
Titre du document
Distribution and pest status of edible caterpillar, Cirina butyrospermi Vuillet (Lepidoptera : Attacidae) in Southwest of Burkina Faso : case of the transect Koumbia-Dano
Zida I., Bastide B., Sawadogo A., Seghieri Josiane
Source
International Journal of Tropical Insect Science, 2024,
[Early access], p. [11 p.] ISSN 1742-7584
Cirina butyrospermi Vuillet (Lepidoptera: Attacidae) is an insect whose larvae feed only on shea leaves [Vitellaria paradoxa C.F. Gaertn. (Sapotaceae)]. The last larval stages (L4 and L5) of this insect are harvested and used as food and in a lesser extent, as feed in Southwest of Burkina Faso. However, the distribution and density of C. butyrospermi edible caterpillar have not yet been investigated in Southwest of Burkina Faso. The objective of this work is to evaluate the density and damage of shea caterpillars in the shea parklands located along the Koumbia-Dano environmental and ethnical transect, during three consecutive shea caterpillar seasons (2020, 2021 and 2022). The density of individuals/square meter of shea leaves of each of the five larval stages, including dead larvae, was evaluated on the sampled shea trees. The infestation rate and the severity of defoliation were also investigated. The density of edible larval stages (L4 and L5) ranged from 2.95 +/- 3.35 to 29.50 +/- 25.49 individuals/m2 of shea leaves according to the study sites and the year. The percentage of shea tree infested with caterpillars and the attack severity varied from 35.57 to 57.50% and from 8.71 to 25.50%, respectively, depending on the study sites and the year. Further investigation is necessary to determine the cause of the larvae mortality and the reasons for the heterogeneous distribution of C. butyrospermi along the transect.
Plan de classement
Nutrition, alimentation [054]
;
Sciences du monde animal [080]
;
Etudes, transformation, conservation du milieu naturel [082]
