Abstract

GONZALEZ CARDONA, Carolina; ARISTIZABAL HINCAPIE, Juan Camilo  and  ARISTIZABAL LOAIZA, Manuel. Biological evaluation of the management of borers and phytopathogenic nematodes of plantain (Musa AAB). Acta Agron. [online]. 2009, vol.58, n.4, pp.260-269. ISSN 0120-2812.

This work was carried out at the ‘Montelindo’ farm, municipality of Palestina (Department of Caldas, Colombia, located at 5° 05' N and 75° 40' W, at 1010 m.a.s.l., 23.5 °C, with 2100 mm of annual rainfall, and relative humidity of 76%), in order to generate information on the management of borers and parasitic nematodes of the plantain. A completely randomised block experimental design was used, with four treatments per block, three replicates and 24 plants per replicate. For the management of borers, applications of Carbofuran, Beauveria bassiana and Metarhizium anisopliae were made into column type traps. To control nematodes soil applications of Carbofuran and two commercial strains of Paecilomyces linacinus were made. The number of adult borers in the traps, the infection of these by the fungi used, and the population of nematodes in both soil and roots were evaluated. It was found that the traps treated with Carbofuran were significantly more effective for insect capture. In the lab, it was established that M. anisopliae had better capacity to infect adult insects in the field. P. lilacinus was ineffective at reducing nematode populations. The nematode population was lower in soil and roots of plants treated with Carbofuran. The predominant genera of nematodes were Radopholus, Pratylenchus, Meloidogyne and Helicotylenchus.

Keywords : Paecilomyces lilacinus; Beauveria bassiana; plantain; musa; Cosmopolites sordidus; Rhadopolus similis.

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