Location: Horticultural Crops Disease and Pest Management Research Unit
Title: Occurence and distribution of Globodera SPP. in BoliviaAuthor
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SAINZ, C - Consultant |
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VILLARROE, C - Consultant |
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Zasada, Inga |
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DANDURAND, L - University Of Idaho |
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KUHL, J - University Of Idaho |
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SILVESTRE, R - University Of Idaho |
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Hesse, Cedar |
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Peetz, Amy |
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BENEDETTI, T - Oregon State University |
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Baker, Hannah |
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SUBBOTIN, S - California Department Of Food And Agriculture |
Submitted to: Nematropica
Publication Type: Peer Reviewed Journal Publication Acceptance Date: 8/3/2023 Publication Date: 9/7/2023 Citation: Sainz, C., Villarroe, C.L., Zasada, I.A., Dandurand, L.M., Kuhl, J., Silvestre, R., Hesse, C.N., Peetz, A.B., Benedetti, T., Baker, H.V., Subbotin, S.A. 2023. Occurence and distribution of Globodera SPP. in Bolivia. Nematropica. 53:82-88. Interpretive Summary: Potato cyst nematodes (PCN), microscopic worms that attack plants, are a major constraint to the production of potatoes globally. A survey was conducted to provide up-to-date information on the distribution and identity of PCN in Bolivia. It was found that PCN is widespread in the country and that there are at least two different types of PCN in the country. This information will be used by farmers and researchers to develop management strategies to reduce the impact of PCN on potato production in Bolivia. Technical Abstract: Potato is an important crop for thousands of small-holder farmers in Bolivia. The potato cyst nematodes (Globodera rostochiensis and G. pallida) have been reported in most cultivated areas of Bolivia and are a significant constraint to the production of potato in the country. A survey was conducted in 2022 to provide a current understanding of the identity, distribution and occurrence of Globodera spp. in Bolivia. Soil samples were collected from 144 potato fields and Globodera spp. cysts were found in 82% of the samples. There were significantly higher population densities of Globodera spp. in the departments of La Paz, Cochabamba, and Chiquisaca (297 to 1,008 cysts/250 g soil) compared to Potosí and Tarija (~85 cysts/250 g soil) (P < 0.001). Based upon molecular identification, G. rostochiensis was the most prevalent species in Bolivia found in 66% of cyst samples or 88% of fields. These findings provide a starting place for additional research in Bolivia to develop new way to reduce the negative impact of Globodera spp. on potato production and the livelihood of Bolivian farmers. |