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The Triple Bagging Story in Rural Areas of Niger: Answers to Questions Asked by Farmers and Extension Agents About Technology. Testing triple bags in lab Following triple bag use at village level Addressing some farmers ’ questions. 1. Testing PICS bag in Lab.
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The Triple Bagging Story in Rural Areas of Niger:Answers to Questions Asked by Farmers andExtension Agents About Technology Testing triple bags in lab Following triple bag use at village level Addressingsomefarmers’ questions
1. Testing PICS bag in Lab Comparing 50kg/100kg PICS bags • 90 to 99% adult and larvae mortality in a bag • Cowpea can be stored for up to two or three years without loss • O2 decreases rapidly (6 hrs after sealing the bags)
2. Following PICS bag in Niger Villages • Trials conducted in 107 villages; O2 and CO2 levels comparable to lab experiment • No reports of cowpea damage due to bruchids, PICS bags are well accepted by farmers • Quality of cowpea better (283 villages surveyed) PICS Bags Conclusion: Putting infested grain in PICS bags stops losses
3. Addressingfarmers questions? • Doesexposure to lowoxygen affect cowpeaseed germination? • Are PICS bags more effective than traditional methods? • Does PICS technologysupress all bruchid population after on seasonstorage? • Can we open our bag duringstorage? • Can weaddphostoxintablet in our PICS bag for betterresults? • How can I preventholes in my plastic inner and external bag? • Can I re-use my PICS bag for more than one year? • Can I use PICS bagswithotherscommodities?
Doesexposure to lowoxygen affect cowpeaseed germination? • Are PICS bags more effective than traditional methods? • Does PICS technologysupress all bruchid population after on seasonstorage? • Can we open our bag duringstorage? • Can weaddphostoxintablet in our PICS bag for betterresults? • How can I preventholes in my plastic inner and external bag? • Can I re-use my PICS bag for more than one year? • Can I use PICS bagswithotherscommodities?
Germination tests of cowpea grain Conclusion: Germination is not affected when cowpeas are stored in PICS bags
Doesexposure to lowoxygen affect cowpeaseed germination? • Are PICS bags more effective than traditional methods? • Does PICS technologysupress all bruchid population after on seasonstorage? • Can we open our bag duringstorage? • Can weaddphostoxintablet in our PICS bag for betterresults? • How can I preventholes in my plastic inner and external bag? • Can I re-use my PICS bag for more than one year? • Can I use PICS bagswithotherscommodities?
Comparing PICS technologywith 5 othermethods Monthly records of percentage of cowpeawithseed for eachtreatments Conclusion: PICS bags perform as well as other methods, INCLUDING phostoxin
Doesexposure to lowoxygen affect cowpeaseed germination? • Are PICS bags more effective than traditional methods? • Does PICS technologysupress all bruchid population after one seasonstorage? • Can we open our bag duringstorage? • Can weaddphostoxintablet in our PICS bag for betterresults? • How can I preventholes in my plastic inner and external bag? • Can I re-use my PICS bag for more than one year? • Can I use PICS bagswithotherscommodities?
TotalNumbers of living (Inactive) adults per bag after 6 months (54 bags, 23 villages) Conclusion: Few adult bruchids survive after 6 months storage in PICS bags
Doesexposure to lowoxygen affect cowpeaseed germination? • Are PICS bags more effective than traditional methods? • Does PICS technologysupress all bruchid population after one seasonstorage? • Can we open our bag duringstorage? • Can weaddphostoxintablet in our PICS bag for betterresults? • How can I preventholes in my plastic inner and external bag? • Can I re-use my PICS bag for more than one year? • Can I use PICS bagswithotherscommodities?
Comparingmultiply-opened and unopened PICS bags –5 monthsstorage Conclusion: If necessary bags can be quickly opened and closed once a week
Doesexposure to lowoxygen affect cowpeaseed germination? • Are PICS bags more effective than traditional methods? • Does PICS technologysupress all bruchid population after one seasonstorage? • Can we open our bag duringstorage? • Can weadd phostoxin to PICS bag for betterresults? • How can I preventholes in my plastic inner and external bag? • Can I re-use my PICS bag for more than one year? • Can I use PICS bagswithotherscommodities?
Comparing PICS bag with and withoutphostoxin Conclusion: Phostoxin is NOT necessary and is a waste and a danger.
Doesexposure to lowoxygen affect cowpeaseed germination? • Are PICS bags more effective than traditional methods? • Does PICS technologysupress all bruchid population after one seasonstorage? • Can we open our bag duringstorage? • Can weaddphostoxintablet in our PICS bag for betterresults? • Can I preventholes in my plastic inner and externalbags? • Can I re-use my PICS bag for more than one year? • Can I use PICS bagswithotherscommodities?
Number of holes and abrasion on HDPE layer of PICS bagsfilledwithinfestedcowpea and closedatdifferent time Conclusion: It is best to close bags immediately after filling and keep them closed.
Doesexposure to lowoxygen affect cowpeaseed germination? • Are PICS bags more effective than traditional methods? • Can we open our bag duringstorage? • Can weaddphostoxintablet in our PICS bag for betterresults? • How can I preventholes in my plastic inner and external bag? • Can I re-usemy PICS bag for two or more years? • Can I use PICS bagswithotherscommodities?
Survey conducted in 49 villages in March and April 2010 O2 and CO2 levels in New and re-usedbags Cowpeaquality in re-usedbags Conclusion: Used bags perform as well as new bags
Doesexposure to lowoxygen affect cowpeaseed germination? • Are PICS bags more effective than traditional methods? • Can we open our bag duringstorage? • Can weaddphostoxintablet in our PICS bag for betterresults? • How can I preventholes in my plastic inner and external bag? • Can I re-use my PICS bag for more than one year? • Can I use PICS bagswithothercommodities?
Farmers are experimenting the technology on other commodities: • Bambara groundnut-VignasubterraneaL. Verdc • Seed of Hibiscus sabdariffa(Roselle) • Maize • Sorghum Bambara groundnut Callosobruchusmaculatus A trader from Dan Kassari using PICS bag for voandzou storage Conclusion: There is need. Research is underway. We are hopeful.
With each new crop or product: • Does PICS bagging stop the insect problem? • 2. Is grain moisture and molds a problem? • 3. Will PICS stored seeds germinate? • 4. Are processing, cooking time, etc. affected? • 5. Would PICS intervention be economical?
Thanks to the PICS family! • Laurie Kitch • Dick Shade • Georges Ntoukam • MoffiTa’Ama • Jane Wolfson • Bill Moar • Tim Mack • Jess Lowenberg- DeBoer • L. Amadou • Heather Fabries • Bokar Moussa • Tahirou Abdoulaye • Dieudonné Baributsa • Katy Ibrahim • UtiangUgme • GitalIlyasu • Larry Murdock • Ousmane Coulibaly • Kerstin Hell • VenuMargam • Joe Huesing • Marissa McDonough • Clementine Dabire • BoukarOusmane • Clement Faye • John Kumi • BakaryThiero