Room for plant derived pesticides in agroecological management of crop pests? Experience from some African cropping systems

Ratnadass Alain. 2013. Room for plant derived pesticides in agroecological management of crop pests? Experience from some African cropping systems. In : Proceedings of The First International Conference on Pesticidal Plants (ICPP) Vol.1 : Harnessing pesticidal plant technologies for improved livelihoods, Nairobi, Kenya, 21-24 january 2013. Joshua O. Ogendo ; Catherie W. Lukhoba ; Philip K. Bett ; Alex K.. Egerton : Egerton university, 179-183. ISBN 978-9966-033-00-0 International Conference on Pesticidal Plants (ICPP). 1, Nairobi, Kenya, 21 Janvier 2013/24 Janvier 2013.

Résumé : Plant-derived pesticides are part of the toolbox of IPM and organic agriculture, as substitutes to synthetic chemical pesticides. On the other hand, for the very same reason (substitution rather than re -design), they are less in line with the agroecological approach.We however provide examples of the potential role of such plantderived pesticides (with emphasis on extracts of neem and Jatropha), in a strategy of pest management via agroecological pathways.These encompass seed -dressing for black-beetle management on upland rice in Madagascar, and sprays for manageme nt of sorghum stem-borers in Cameroon, of sorghum panicle-feeding bugs in Mali and of cowpea pestsin Niger.The way the plant -derived pesticide-based tactics can be synergistic rather than conflicting with the agroecological pest management strategy is disc ussed mainly along two lines: i) Potential integration of botanical pesticide -producing plants in the cropping system (e.g. Jatropha live - hedges around vegetable market -gardens inthe Sahel)- ii) Pro's and con's of the use of such repellent, deterrent, and/or biocidal extracts in an "assisted" push-pull strategy.

Classification Agris : H01 - Protection des végétaux - Considérations générales
F08 - Systèmes et modes de culture
Q60 - Traitement des produits agricoles non alimentaires

Auteurs et affiliations

• Ratnadass Alain, CIRAD-PERSYST-UPR HortSys (FRA) ORCID: 0000-0002-8873-5671

Source : Cirad - Agritrop (https://agritrop.cirad.fr/572846/)

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