Citas bibligráficas
Aliaga, J., Cruz, J. (2009). Determinación de las CL50 y CL90 del hongo Beauveria bassiana CBLE-265 para el control de las plagas Spodoptera frugiperda y Aphis craccivora [Tesis, Universidad Nacional Mayor de San Marcos]. https://hdl.handle.net/20.500.12672/1637
Aliaga, J., Cruz, J. Determinación de las CL50 y CL90 del hongo Beauveria bassiana CBLE-265 para el control de las plagas Spodoptera frugiperda y Aphis craccivora [Tesis]. PE: Universidad Nacional Mayor de San Marcos; 2009. https://hdl.handle.net/20.500.12672/1637
@misc{renati/480168,
title = "Determinación de las CL50 y CL90 del hongo Beauveria bassiana CBLE-265 para el control de las plagas Spodoptera frugiperda y Aphis craccivora",
author = "Cruz Gutiérrez, Joel Simei",
publisher = "Universidad Nacional Mayor de San Marcos",
year = "2009"
}
-- The plague Spodoptera frugiperda (Lepidopteroa: Noctuidae), is a polyphagous species that is widespread throughout in all Americans countries, causing great losses in yields of several crops. The plague Aphis craccivora cause damage to the annual crops as alfalfa, beans, artichoke, tomato and others, by feeding on sap, causing deformations in the buds and the leaves curl and the death of the plant; also, excreted a honeydew that encourages the development of species of fungi causing fumagin, affecting the photosynthesis of the plant. Among the control alternatives with lower environmental impact, research was conducted to evaluate the susceptibility of these two plagues at the strain Beauveria bassiana CBLE-265, produced by the National Service of Agrarian Health (SENASA), in order to determine the LC50 and LC90 of the strain against the plague Spodoptera frugiperda and the plague Aphis craccivora. To define the concentrations was based on the commercial dose of the product. For inoculation were sprayed solutions at different concentrations of Beauveria bassiana CBLE-265 with manual spray to the larva of I, II and III stage of Spodoptera frugiperda, then placed in acrylic racks with artificial diet for its evaluation, whereas Aphis craccivora were sprayed at the nymphs, were in pots with alfalfa for its evaluation. Using the Probit program were analyzed mortality data from bioassay of the 5th day until they reach the adult stage, determined through projections the median lethal concentration and lethal concentration ninety. For stage I of Spodoptera frugiperda, the value of LC50 was 1,90 x 1024 conidia/g and the value of LC90 was 2,30 x 1031 conidia/g, for stage II, the value of LC50 was 7,90 x 1024 conidia/g and the value of LC90 was 9,10 x 1031 conidia/g. While for the nymphs of Aphis craccivora had no effect of the strain studied, so it is concluded that the strain of Beauveria bassiana CBLE-265 is not adequate to control both plagues, not having a significant effect.
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