Abstract

CHOQUETARQUI, Daniel; ALMANZA, Lourdes  and  LOZA-MURGUIA, Manuel. Selection of three strains creole Beauveria bassiana (Balsamo) Vuillemin as an alternative for biological control of coffee berry borer, Hypothenemus hampei (Ferrari 1867) (Coleoptera: Scolytidae) at different temperatures. J. Selva Andina Res. Soc. [online]. 2011, vol.2, n.1, pp.17-25. ISSN 2072-9294.

In the world there is great demand for coffee (Coffea arabica) across Europe and America, and coffee producing countries like Brazil, Colombia, and low producers. Bolivia is a country that produces coffee, produces 90% instead of the Yungas of La Paz department. One of the biggest problem for producers is to attack the coffee berry borer that will affect the performance to drop, and producers are seeing thus applying chemicals to eliminate this pest, but the taste is no longer the same and now there is now demand for organic coffee as producers seek to eliminate the scourge of environmentally friendly manner. Thus he found one of the ways you can remove it with an entomopathogenic fungus Beauveria bassiana that is killing the fruit contact the coffee berry borer (Hypothenemus hampei), is present in the form of a creamy yellow cotton that does not affects the environment and is wicked for warm-blooded animals. But how to play this fungus is not known at what temperature can be reproduced only has information that germinate at 23 ° C to 25 o C but in a different area, that is why research is done. That's why were submitted to different temperatures (15oC, 18oC, 21oC, 24oC, 27oC, 30oC). In three different places (Carmen Pampa, Irupana, Asunta) at different temperatures and altitudes. The results were that a thickened first all well but after time passed were changing the behavior and the best result was at 24oC, initially in the germination started badly but the results of growth rate was 2.21mm/day the concentration of conidia was 2.0 conidia / ml, followed by the temperature of 18 o, 21 o, 27 o, the growth rate ranging from 1.43 to 1.85 mm/day, and the concentration is 1.50 to 1.70 conidia/mL. The place was better behaved Asunta fungus followed by Carmen Pampa.

Keywords : Bauberia bassiana; entomopathogenic fungi; Hypothenemus hampei; Yungas; Coffea arabica.

        · abstract in Spanish     · text in Spanish     · Spanish ( pdf )