Protection of entomopathogenic conidia against chemical fungicides afforded by an oil-based formulation
Autor: | Marcos Faria, Giuliano Pauli, Gabriel Moura Mascarin, Rogério Biaggioni Lopes |
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Rok vydání: | 2011 |
Předmět: | |
Zdroj: | Biocontrol Science and Technology. 21:125-137 |
ISSN: | 1360-0478 0958-3157 |
Popis: | We evaluated the protection afforded by an oil formulation against non-compatible fungicides in mixtures with conidia of the entomopathogenic fungi Metarhizium anisopliae (Ma) and Beauveria bassiana (Bb). Under laboratory conditions, viability of unformulated (aqueous suspensions) Ma conidia was harmed by recommended label doses of carbendazim (not tested for Bb), and both Ma and Bb conidia were affected by triadimefon. On the other hand, effect of fungicides was usually nil or minimal on conidia formulated as oil-containing suspensions (emulsifiable oil + water). Germination rates for unformulated and oil-formulated Ma conidia subjected to carbendazim were reduced by 77.3 and 12.1%, respectively, compared to their fungicide-free counterparts. Germination rates at 16 h post-inoculation for unformulated and oil-formulated Bb conidia subjected to triadimefon were reduced by 20.5 and 5.5%, respectively, compared to their fungicide-free counterparts. No differences were observed at 20 h post inoculat... |
Databáze: | OpenAIRE |
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