The effect of two pesticides (Vitavax-300 and Gaucho) on rhizobia and on the nodulation of four legumes

Authors

  • Pasi Miettinen Ministry of Agriculture and Forestry, Helsinki, Finland
  • Plutarco E. Echegoyen Centro Agronómico Tropical de Investigación y Ensaňanza, 7170 Turrialba, Costa Rica
DOI: https://doi.org/10.23986/afsci.72736

Abstract

The application of seed-protecting pesticides is often a prerequisite for raising legumes in the tropics. However, these chemicals may influence the development of root nodule symbiosis. In the present study, high concentrations of Gaucho insecticide (imidacloprid) and Vitavax-300 fungicide (carboxin and captan) clearly inhibited the growth of root nodule bacterium under laboratory conditions. However, they did not effect to the nodulation or biomass production of Arachis pintoi, Arachis hypogaea, Mucuna pruriens or Desmodium ovalifolium raised in a green house in eastern Costa Rica. Explanations for these results are discussed.

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Issue
Vol. 5 No. 2 (1996)
Section
Articles

Published

1996-03-01

How to Cite

Miettinen, P., & Echegoyen, P. E. (1996). The effect of two pesticides (Vitavax-300 and Gaucho) on rhizobia and on the nodulation of four legumes. Agricultural and Food Science, 5(2), 203–207. https://doi.org/10.23986/afsci.72736

Copyright (c) 2024 Pasi Miettinen, Plutarco E. Echegoyen

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