Several Mussidia species occur in West and East Africa, but only the ear-borer, Mussidia nigrivenella Ragonot (Lepidoptera: Pyralidae), has attained economic pest status in West Africa. During recent surveys in Kenya several parasitoid species were recovered from Mussidia species, including the egg parasitoid, Trichogrammatoidea sp. nr lutea Girault (Hymenoptera: Trichogrammatoidea). This parasitoid species is considered a potential biocontrol agent for M. nigrivenella in West Africa and development of a successful rearing system for its host, M. fiorri, will enable the mass production of this natural enemy species. The suitability of five artificial diets for the development of M. fiorii as well as optimum rearing conditions were evaluated in the laboratory. The effect of temperature and humidity on the development of M. fiorii was also studied. Mussidia fiorii successfully developed on maize leaf-, maize seed- and Canavalia ensiformes seed-based diets. The lower developmental thresholds for the egg, larvae, pupae, and egg to adult were 12.8 ± 0.25 °C, 14.4 ± 0.27 °C, 11.0 ± 0.03 °C and 13.5 ± 0.21 °C, respectively, while the thermal constants were 82.0 ± 1.61, 384.6 ± 9.4,144.9 ± 6.8 and 588.2 ± 10.8 degree-days, respectively. Information on dietary and thermal requirements will be used to optimize mass production of the host and natural enemies.
You have requested a machine translation of selected content from our databases. This functionality is provided solely for your convenience and is in no way intended to replace human translation. Neither BioOne nor the owners and publishers of the content make, and they explicitly disclaim, any express or implied representations or warranties of any kind, including, without limitation, representations and warranties as to the functionality of the translation feature or the accuracy or completeness of the translations.
Translations are not retained in our system. Your use of this feature and the translations is subject to all use restrictions contained in the Terms and Conditions of Use of the BioOne website.
Vol. 19 • No. 3