IPM in cotton and cashew

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Developing alternatives to cotton pesticides in Benin (Dutch Embassy in Benin),Impact of different control methods on bollworm numbers and cotton yield in Northern Benin,Development of delivery systems,Feasibility for IPM of cashew pests (BMZ):new challenges in insect ecology.

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IPM in cotton and cashew

  1. 1. IPM in cotton and cashew Manuele Tamò insect ecologist R4D week, Nov 23 2009 International Institute of Tropical Agriculture – Institut international d’agriculture tropicale – www.iita.org
  2. 2. Developing alternatives to cotton pesticides in Benin (Dutch Embassy in Benin)Cotton bollworm, Helicoverpa armigeraSingle most important pest in cottonResistant to most common synthetic pesticides and 1st gen. bt-cotton International Institute of Tropical Agriculture – Institut international d’agriculture tropicale – www.iita.org
  3. 3. - biopesticides:entomopathogens, neem oil- trap plants: sunflowers,marigolds- conservation of locallyavailable natural enemies(parasitoids, spiders etc.)- integration of all theseoptions International Institute of Tropical Agriculture – Institut international d’agriculture tropicale – www.iita.org
  4. 4. Impact of different control methods on bollworm numbers and cotton yield in Northern BeninMilieux paysans (Banikoara)Pratiques Godou Ounet Goumonri Founougo Nombre Rendements Nombre Rendements Nombre Rendements Nombre Rendements moyen de H. moyen (kg/ha) moyen de H. moyen (kg/ha) moyen de H. moyen (kg/ha) moyen de H. moyen armigera par armigera par armigera par armigera par (kg/ha) cotonnier cotonnier cotonnier cotonnierHuile de neem 0,090 ± 0,031 a 990 ± 248 a 0,056 ± 0,033 a 460,4 ± 99 0,967 ± 0,160 a 333 - 410,4 ± 69Metarhizium 0,124 ± 0,034 a 1238 ± 35 a 0,061 ± 0,035 a 212,5 ± 6 1,000 ± 0,180 a 238 - 218,8 ± 38anisopliaeBeauveria 0,071 ± 0,051 a 998 ± 43 a 0,045 ± 0,028 a 495,8 ± 84 1,096 ± 0,191 a 340 - 379 ± 65bassianaConventionnel 0,200 ± 0,108 a 1154,2 ± 211 a 0,085 ± 0,037 a 517 ± 214 1,033 ± 0,165 a 538 - 556 ± 232 International Institute of Tropical Agriculture – Institut international d’agriculture tropicale – www.iita.org
  5. 5. How to scale out these options:Neem oil:- no need to scale out !- market driven, as long as one can make a profit- monitor spill-over effect on other cash cropsMycopesticides:- more complicated- registration, patenting, quality control issues- economic benefit: investment for productionTrap plants:- added value (selling of sunflower seeds)Strategic partnerships:NARS (other countries), NGOs, private sector, ‘champions’ International Institute of Tropical Agriculture – Institut international d’agriculture tropicale – www.iita.org
  6. 6. The parasitoid Habrobracon brevicornis International Institute of Tropical Agriculture – Institut international d’agriculture tropicale – www.iita.org
  7. 7. Development of delivery systems: phase IICountry Villages Producers keeping release bags Release bags Evaluation Number of millet installed (villages assessed) spikes observed Men Women Release villages Control villagesNiger 90 470 25 1303 24 8 14400Burkina Faso 51 235 20 690 23 5 16350Mali 31 83 10 465 31 8 17750Total 172 788 55 2458 78 21 48500 International Institute of Tropical Agriculture – Institut international d’agriculture tropicale – www.iita.org
  8. 8. Feasibility for IPM of cashew pests (BMZ): new challenges in insect ecology Apate terebrans in action International Institute of Tropical Agriculture – Institut international d’agriculture tropicale – www.iita.org
  9. 9. The (invasive?) cashew leafminer Eteoryctis syngramma (Meyrick) International Institute of Tropical Agriculture – Institut international d’agriculture tropicale – www.iita.org
  10. 10. Scaling out based on results from feasibility study Leafminer: classical biological control (inoculative releases) Helopeltis bugs: augmentative biocontrol + biopesticides Apate borer: aggregation pheromones + biopesticides International Institute of Tropical Agriculture – Institut international d’agriculture tropicale – www.iita.org

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