OCCURRENCE AND DISTRIBUTION OF GLOBODERA SPP. IN BOLIVIA

Authors

  • C. Sainz
  • C. L. Villarroe
  • I. A. Zasada
  • L. M. Dandurand
  • J. Kuhl
  • R. Silvestre
  • C. Hesse
  • A. B. Peetz
  • T. Benedetti
  • H. V. Baker
  • S. A. Subbotin

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 (P < 0.001) higher population densities of Globodera spp. in the departments of La Paz, Cochabamba, and Chuquisaca (297 to 1,008 cysts/250 cm3 soil) compared to Potosí and Tarija (~85 cysts/250 cm3soil). Based upon molecular identification, both G. rostochiensis and G. pallida were found, with G. rostochiensis being the most prevalent species in Bolivia found in 87% of infested fields. These findings provide an updated assessment of the current status of Globodera spp. in Bolivia.

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Published

2023-09-07

Issue

Section

ELECTRONIC ARTICLE/ARTICULO ELECTRONICO