caa a22 4500 386375852 CHVBK 20180307112018.0 cr unu---uuuuu 161130e198904 xx s 000 0 eng 10.1017/S1742758400010407 doi S1742758400010407 pii (NATIONALLICENCE)cambridge-10.1017/S1742758400010407 Oloo G. W. International Centre of Insect Physiology and Ecology (ICIPE), P.O. Box 30772, Nairobi, Kenya The role of local natural enemies in population dynamics of Chilo partellus (Swinh.) (Pyralidae) under subsistence farming systems in Kenya [Elektronische Daten] [G. W. Oloo] The present article is one of a series of papers in preparation in which an ecological approach to developing a sound biocontrol programme for cereal stem borers is proposed and outlined. The proposed approach involves detailed population estimation and analysis in relation to crop phenology to determine the role of local natural enemies, evaluation of biocontrol potential of promising biocontrol agents, developing mass rearing and release technology and monitoring the impact of the biocontrol programme. In the example used to illustrate the first step in such a programme, life table analysis of data from a 2-year study on Chilo partellus on maize and sorghum under subsistence agriculture in Western Kenya, showed local predators (and unidentified factors) to contribute up to 97.6 % of generation mortality of the borer in the age interval from egg to early instar larva, while parasitoids and pathogens contributed less than 1 % mortality in the various life stages. Hence, a programme involving conservation and augmentation of local predators and introduction of selected exotic parasitoids of this borer seems appropriate. This represents an attempt to apply life table analysis, taking into account plant phenology, in studying interacting populations under subsistence farming conditions. Copyright © ICIPE 1989 Population dynamics nationallicence Chilo partellus nationallicence local natural enemies nationallicence ecological life tables nationallicence biocontrol nationallicence subsistence farming systems nationallicence International Journal of Tropical Insect Science Cambridge University Press 10/2(1989-04), 243-251 1742-7584 10:2<243 1989 10 JTI https://doi.org/10.1017/S1742758400010407 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1017/S1742758400010407 text/html Onlinezugriff via DOI NATIONALLICENCE 100 1- Oloo G. W. International Centre of Insect Physiology and Ecology (ICIPE), P.O. Box 30772, Nairobi, Kenya NATIONALLICENCE 773 0- International Journal of Tropical Insect Science Cambridge University Press 10/2(1989-04), 243-251 1742-7584 10:2<243 1989 10 JTI CC0 http://creativecommons.org/publicdomain/zero/1.0 nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-cambridge