Abstract

FERNANDEZ TURRO, A et al. EFFECT OF LIGHT INTENSITY AND THE APPLICATION OF Beauveria bassiana ON POPULATIONS OF Hypothenemus hampei (Ferr.) (COLEOPTERA: SCOLYTIDAE). Rev. Protección Veg. [online]. 2008, vol.23, n.3, pp.160-175. ISSN 1010-2752.

A trial was carried out in areas of the UBPC "Gabriel Lamot" of the Coffee Enterprise Yateras, Guantánamo province, in 2004, to evaluate the effect of the indirect diffuse light intensity management within the coffee plantation and the application of the entomopathogenic fungus Beauveria bassiana on populations of Hypothenemus hampei Ferr. (Coleoptora: Scolytidae). The experimental plots were arranged in a split plot design with two factors. ¨Factor 1¨ was the management of the indirect diffuse light intensity within the coffee plantation and ¨Factor 2¨ consisted of six variants of application of B. bassiana. A significant decrease of the percentage of affectation by H. hampei in the field at levels of 0,6 and 2,1%, respectively, could be achieved with shade management in the coffee plantation in a range between 60-70% and direct applications to the foliage of this bioproduct at a concentration of 10⁹ spores.mL^-1 at intervals of 30-40 days after mass flowering.

Keywords : Hypothenemus hampei; Coffea arabica; Beauveria bassiana; shade management.

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