En las zonas productoras de papa (Solanum tuberosum Linneo) del Perú, dos especies de polilla de la papa están presentes: Phthorimaea operculella Zeller (Lepidoptera: Gelechiidae) y Symmetrischema tangolias Gyen (Gelechiidae). Para contrarrestar sus efectos dañinos, los productores de papa espolv...
Mamani, D.
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Sporleder, M.
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Kroschel, J.
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[Efecto de materiales inertes de formulas bioinsecticidas en la proteccion de tuberculos almacenados contra las polillas de papa.]
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Efecto de materiales inertes de formulas bioinsecticidas en la proteccion de tuberculos almacenados contra las polillas de papa.
This study sought to promote proper and safe pesticide-handling practices by providing data needed to guide pesticide regulation policy and training for extension staff and farmers. A household survey was conducted in three major potato-growing agroecological zones of Uganda. Two hundred and four...
Okonya, J.
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Kroschel, J.
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[A cross-sectional study of pesticide use and knowledge of smallholder potato farmers in Uganda.]
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A cross-sectional study of pesticide use and knowledge of smallholder potato farmers in Uganda.
Phthorimaea operculella granulovirus (PhopGV) is infectious for larvae of different Gelechiidae insect species, including Tuta absoluta and Phthorimaea operculella. As these are major economic pests in North and sub‐Saharan Africa as well as in the Mediterranean area, the development of locally s...
Ben Tiba, S.
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Larem, A.
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Laarif, A.
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Fritsch, E.
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Undorf-Spahn, K.
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Ekesi, S.
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Wennmann, J.T.
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Kroschel, J.
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Fattouch, S.
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Jehle, J.A.
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Mohamed, S.A.
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[The potential of novel African isolates of Phthorimaea operculella granulovirus for the control of Tuta absoluta.]
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The potential of novel African isolates of Phthorimaea operculella granulovirus for the control of Tuta absoluta.
The Andean potato tuber moth, Symmetrischema tangolias (Gyen) [Lepidoptera, Gelechiidae], is an economically important pest of potato (Solanum tuberosum L.) in the mid-elevated Andean region and an invasive pest of partially global importance. Determination of the pest's population life table par...
Sporleder, M.
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Schaub, B.
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Aldana, G.
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Kroschel, J.
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[Temperature-dependent phenology and growth potential of the Andean potato tuber moth, Symmetrischema tangolias (Gyen) (Lep., Gelechiidae).]
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Temperature-dependent phenology and growth potential of the Andean potato tuber moth, Symmetrischema tangolias (Gyen) (Lep., Gelechiidae).
Integrated pest management (IPM) versus farmers’ pest management practices were evaluated in potato (Solanum tuberosum L.) in the central coast of Peru. IPM technologies consisted of seed treatment, insect pest, and disease scouting using action thresholds for decision making to apply pesticides,...
Mujica, N.
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Kroschel, J.
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[Ecological, economic, and environmental assessments of integrated pest management in potato: A case study from the Canete Valley, Peru]
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Ecological, economic, and environmental assessments of integrated pest management in potato: A case study from the Canete Valley, Peru
The Andean region is the most important center of potato diversity in the world. The global warming trend which has taken place since the 1950s, that is 2-3 times the reported global warming and the continuous presence of extreme events makes this region a live laboratory to study the impact of c...
Quiróz, R.
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Ramírez, D.
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Kroschel, J.
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Andrade-Piedra, J.L.
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Barreda, Carolina
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Condori, B.
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Mares, V.
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Monneveux, P.
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Pérez, W.
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[Impact of climate change on the potato crop and biodiversity in its center of origin]
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Impact of climate change on the potato crop and biodiversity in its center of origin
Rios, A.A.
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Kroschel, J.
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[Evaluation and implications of Andean potato weevil infestation sources for its management in the Andean region.]
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Evaluation and implications of Andean potato weevil infestation sources for its management in the Andean region.
Heavy infestations of stored potato (Solanum tuberosum L.) tubers by the two potato tuber moth species Symmetrischema tangolias (Gyen) and Tecia solanivora (Povolny) frequently occur in Andean potato‐growing regions of Ecuador. The aim of the study was to develop a biological control strategy for...
Schaub, B.
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Kroschel, J.
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[Developing a biocontrol strategy to protect stored potato tubers from infestation with potato tuber moth species in the Andean region.]
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Developing a biocontrol strategy to protect stored potato tubers from infestation with potato tuber moth species in the Andean region.
Biotic constraints cause major crop losses and, hence, food insecurity in sub-Saharan Africa. This study documented the popularity, production constraints, pests and diseases, farmers’ perceptions on the severity of biotic constraints and the impact of related crop losses on household food securi...
Okonya, J.
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Ocimati, W.
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Nduwayezu, A.
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Kantungeko, D.
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Niko, N.
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Blomme, Guy
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Legg, J.P.
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Kroschel, J.
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[Farmer reported pest and disease impacts on root, tuber, and banana crops and livelihoods in Rwanda and Burundi.]
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Farmer reported pest and disease impacts on root, tuber, and banana crops and livelihoods in Rwanda and Burundi.
This paper evaluates the determinants of decision-making in relation to the production of four crops (banana, cassava, potato, and sweet potato). Understanding the division of labor and decision-making in crop management may lead to designing better interventions targeted at improving efficiency ...
Okonya, J.S.
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Mudege, Netsayi N.
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Rietveld, A.M.
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Nduwayezu, A.
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Kantungeko, D.
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Hakizimana, B.M.
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Nyaga, J.N.
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Blomme, Guy
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Legg, J.P.
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Kroschel, J.
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[The role of women in production and management of RTB crops in Rwanda and Burundi: Do men decide, and women work?]
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The role of women in production and management of RTB crops in Rwanda and Burundi: Do men decide, and women work?