Publications des scientifiques de l'IRD

Kankonda O. M., Akaibe B. D., Sylvain N. M., Le Rü Bruno. (2018). Response of maize stemborers and associated parasitoids to the spread of grasses in the rainforest zone of Kisangani, DR Congo : effect on stemborers biological control. Agricultural and Forest Entomology, 20 (2), p. 150-161. ISSN 1461-9555.

Titre du document
Response of maize stemborers and associated parasitoids to the spread of grasses in the rainforest zone of Kisangani, DR Congo : effect on stemborers biological control
Année de publication
2018
Type de document
Article référencé dans le Web of Science WOS:000429089600003
Auteurs
Kankonda O. M., Akaibe B. D., Sylvain N. M., Le Rü Bruno
Source
Agricultural and Forest Entomology, 2018, 20 (2), p. 150-161 ISSN 1461-9555
The challenge with respect to nourishing the human population should be met in the context of global environmental change. Land-use change has the potential to affect insect pest-natural enemy interactions. In the Democratic Republic of Congo, the rainforest zone is subjected to intense anthropogenic disturbances that lead to the spread of habitats with a higher proportion of grasses in the landscape. Such a land-use change raises the question of its effects on the biological control of insect pests. The proximity of varying vegetation types around agroecosystems is expected to influence species fitting differently and hence the population dynamics of insect pests and their biological control. Thus, the response of maize stemborers and their parasitoids to the spread of habitats with a higher proportion of grasses was assessed along an anthropogenic disturbance gradient in the rainforest zone of Kisangani, Democratic Republic of Congo. The present study identified a decreased density of stemborers and infestation rates on maize as a result of an increased larval/pupal parasitism in wild habitats as the amount of grasses increased in the landscape. This effect was attributed to an increased parasitoid diversity subsequent to the settlement of an abundant and diverse stemborer community in wild habitats.
Plan de classement
Sciences du monde végétal [076]
Description Géographique
REPUBLIQUE DEMOCRATIQUE DU CONGO
Localisation
Fonds IRD [F B010072706]
Identifiant IRD
fdi:010072706
Contact