Eficacia de fluensulfona en el control de Globodera pallida (stone) Behrens en el cultivo de papa (Solanum tuberosum L.) en Nariño (Colombia)

Abstract

This research study assessed the efficacy of applying the nematicide fluensulfone to control the pathogenic nematode Globodera pallida that infects potato crops (Parda Suprema variety) in the municipality of Aldana, Nariño State (Colombia). A randomized complete block experimental design with four replications was established in a lot with a history of high nematode infestations. The treatments consisted of different doses and application times of fluensulfone, commercial doses of cadusafos, and a control. The results showed that, for nematode population and yield (t ha-1), the fluensulfone treatments (0.5 and 1.5 l ha-1) applied 20 and 40 days after planting were statistically equal to the application of cadusafos (9 kg ha-1), but surpassed the control by more than 6 t ha-1 of first-category tuber production. It is concluded that fluensulfone can be used to control G. pallida by reducing its population, resulting in higher yields. (English) [ABSTRACT FROM AUTHOR]