Project
Incidence of Cereal Stemborer Parasitoids and Establishment of Cotesia flavipes (Hymenoptera: Braconidae) in Eastern Uganda
Details
Project Code:
Not Available
Start Date:
1993
End Date:
1998
CRSP Phase:
Phase 1
Budget:
Not Available
Countries:
Uganda
Participants
Lead University:
Ohio State University
Other Partners:
Makerere University, Namulonge Agricultural and Animal Research Institute (NAARI) (Uganda);International Centre of Insect Physiology and Ecology (ICIPE) (Kenya)
Principal Investigator(s):
None
Co-Principal Investigator(s):
S. Kyamanywa, T. Matama-Kauma, J. Ogwanga (Uganda); H. Wilson (US)
Overview
Maize productivity in Uganda is constrained by insect pests among other factors. The lepidopterous stalk borers are the most damaging pests on maize in Uganda. A study was conducted in two districts (Iganga and Kumi) of Eastern Uganda to investigate establishment of the exotic parasitiod Cotesia flavipes and the impact of both the local and exotic parasitoids on stalk borer population in Eastern Uganda.
Objectives
To investigate establishment of the exotic parasitiod Cotesia flavipes and the impact of both the local and exotic parasitoids on stalk borer population in Eastern Uganda.
Outcomes
Results so far obtained indicate that Chilo partelus was the dominant stem borer species followed by B. fusca. Larval parasitism by a local parasitiod, Cotesia sesamia was low (7.7%) and it occurs in very low populations. Therefore if it's to be utilised in the control of B. fusca, it requires augmentation. The introduced parastiod, C.flavipes had a higher parasitism of 30.3% in Kumi and 7% in Iganga. This suggests that C. flavipes is a promising parastiod for C. partelus, it is very likely to established in Eastern Uganda.
