1. DESPLAZAMIENTO DE CONIDIAS DE Metarhizium anisopliae var. anisopliae EN COLUMNAS DE TRES SERIES DE SUELO.
- Author
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P., Ana María Salazar, G., Macarena Gerding, I., Andrés France, P., Jorge Campos, P., Marcos Gerding, E., Marco Sandoval, and V., Viviana Becerra
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METARHIZIUM anisopliae , *BIOLOGICAL pest control , *PESTICIDES , *WHEAT diseases & pests - Abstract
The fungus Metarhizium anisopliae isolation Qu-M270 is a promising control agent for the wheat white grub (Hylamorpha elegans Burm.), a Chilean scarabeid species whose larvae feed on roots of diverse crops and move in soil up to a depth of 25 cm. In this study, the vertical movement of Qu-M270 conidias suspended in water was evaluated in three soil series from the Bío-Bío Region (36°32' S lat; 71°55' W long), Chile. Soil was obtained using PVC pipes 30 cm long by 20 cm in diameter. Conidia recovery was performed in a specific medium for Metarhizium anisopliae, by counting colony forming units in 1 g of dry soil. The Quella series (Aquic Durixerets) was more restrictive to the percolation of conidia, which were concentrated at the first 10 cm. With the Arenales series (Dystric Xeropsamments) conidia were found below 15 cm and in percolated liquids. On the other hand, the Mirador series (Ultic Palexeralf) had a uniform distribution of conidia at every depth. [ABSTRACT FROM AUTHOR]
- Published
- 2007
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