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Gamarra, H.Carhuapoma, P.Kreuze, J.F.Kroschel, J.[Greenhouse Whitefly, Trialeurodes vaporariorum (Westwood)]Greenhouse Whitefly, Trialeurodes vaporariorum (Westwood)

Initial studies on snap bean production in Sumapaz, Colombia, indicated excessive use of pesticides in the region. A more in- depth investigation of how chemicals are used to control insects and diseases, and the economic and agroecological implications was thus initiated in 1989. It was found th...


Velásquez, J.G.Prada, PHenry, Guy[Snap bean pests and diseases in Sumapaz, Colombia: their present status and implications]Snap bean pests and diseases in Sumapaz, Colombia: their present status and implications

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