Biocontrol Science and Technology (2012) 22, 1075-1091

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David Sánchez-Roblero, Graciela Huerta-Palacios, Javier Valle, Jaime Gómez and Jorge Toledo (2012)
Effect of Beauveria bassiana on the ovarian development and reproductive potential of Anastrepha ludens (Diptera: Tephritidae)
Biocontrol Science and Technology 22 (9), 1075-1091
Abstract: We investigated the virulence of a native strain of Beauveria bassiana on the mortality, ovarian development, oogenesis, survival, fecundity and fertility of 4-, 8- and 12-day-old Anastrepha ludens females. In the first study, this strain caused 85% mortality in 8-day-old treated females, with a median lethal concentration (LC50) of 3.1×108 (2.1×108-4.7×108) conidia/mL and a median lethal time (LT50) of 6.5 days. In the second study, the ovarian development and oogenesis of A. ludens females treated with 1×109 conidia/mL were monitored daily in sacrificed flies. The fungus infection did not significantly affect ovarian development of the treated females, although there was a delay in vitellogenesis and a reduction in the quantity of mature basal oocytes and oviposition index in these flies. Moreover, the lowest net fecundity was found in 4-, 8- and 12-day-old treated females, and reduced fertility was observed in 4-day-old treated females. An application to test the potential use of this strain under field conditions is discussed.
(The abstract is excluded from the Creative Commons licence and has been copied with permission by the publisher.)
Link to article at publishers website
Database assignments for author(s): Jorge Toledo

Research topic(s) for pests/diseases/weeds:
biocontrol - natural enemies
Research topic(s) for beneficials or antagonists:
general biology - morphology - evolution

Pest and/or beneficial records:

Beneficial Pest/Disease/Weed Crop/Product Country Quarant.

Anastrepha ludens
Beauveria bassiana (entomopathogen) Anastrepha ludens Mexico