TY  - JOUR
N2  - Augmentative biological control by the parasitoid Habrobracon hebetor (Say) (Hymenoptera: Braconidae) is the most promising strategy to control millet head miner, Heliocheilus albipunctella (De Joannis) a major insect pest of pearl millet in the Sahel. As H. hebetor survival is somehow challenging during the nine month long off-season when the host, H. albipunctella is in diapause, there needs to be a sufficient supply of parasitoids for fresh release each year. Therefore, the aim of this study was to establish a small-scale parasitoid rearing process adjusted to the Sahel conditions that can be scaled-up as necessary. We conducted experiments to fine-tune and standardize the rearing technique of H. hebetor for cottage industrial use. The results showed that parasitoids fed with 30% honey solution and supplied daily with one late-larval-stage Corcyra cephalonica Stainton (Lepidotera, Pyralidae) produced highest number of progeny. The optimal times for mating and egg fertilization, was achieved when a male and female pair was confined for 24 h in a 30-cc vial. Our findings indicated that, compared with the conventional rearing method -2 females supplied once with 25 C. cephalonica larvae-, this new method resulted in 14-times greater parasitoid production. Furthermore parasitoid female can be stored for up to three weeks at fluctuating 23?32°C temperature and 25%?80% relative humidity for numbers accumulations prior to on-farm augmentative releases without altering its fitness.
N1  - This work was supported by the Collaborative Crop
Research Program (CCRP) of the McKnight Foundation, Minneapolis,
MN [grant numbers 09-038; 2009-2012]. The opinions expressed herein
are those of the authors and do not necessarily reflect the views of the
McKnight Foundation.
AV  - restricted
KW  - Mass rearing
KW  -  Corcyra cephalonica
KW  -  Feeding medium
KW  -  Lifespan
KW  -  Fecundity
KW  -  Burkina Faso
KW  -  Pearl millet
A1  - Kabore, A
A1  - Ba, M N
A1  - Dabire-Binso, C
A1  - Sanon, A
TI  - Towards development of a parasitoid cottage industry of the parasitoid wasp Habrobracon hebetor (say): optimum rearing and releases conditions for successful biological control of the millet head miner Heliocheilus albipunctella (De Joannis) in the Sahel
UR  - https://doi.org/10.1007/s42690-019-00005-w
JF  - International Journal of Tropical Insect Science (TSI)
SP  - 1
Y1  - 2019///
ID  - icrisat11294
EP  - 9
SN  - 1742-7584
PB  - Springer
ER  -