Neotropical Entomology (2003) 32, 103-106

Sheila A. Mourão, Evaldo F. Vilela, José C. Zanuncio, Laércio Zambolim and Edmar S. Tuelher (2003)
Seletividade de Defensivos Agrícolas ao Fungo Entomopatogênico Beauveria bassiana
[Selectivity of insecticides and fungicides to the entomopathogenic fungus Beauveria bassiana]
Neotropical Entomology 32 (1), 103-106
Abstract: The relative toxicity of the insecticides organophosphates methyl-chlorpyrifos, disulfoton, ethion, methyl-parathion, the organochlorinate endosulfan and the mixture of the fungicide triadimenol and the insecticide disulfoton and the sterol demethylation inhibitor fungicide (triadimenol and tebuconazole) to the fungus Beauveria bassiana (Balsamo) Vuillemin was evaluated. Concentrations which inhibited radial mycelium growth (99%) of B. bassiana were 0.42; 1.69; 6.53; 14:42; 31.75; 7,028.96;10,326.76 and 763,959.86 mg a.i./ml of tebuconazole, methyl-parathion, triadimenol, triadimenol + disulfoton, methyl-chlorpyrifos, ethion, endosulfan and disulfoton, respectively. The effects of these products were evaluated based on percentage of inhibition of radial mycelium growth of B. bassiana on potato dextrose-agar impregnated with them, after seven days. Tebuconazole, methyl-parathion and methyl-chlorpyrifos were highly toxic to B. bassiana; endosulfan and triadimenol + disulfoton were moderately toxic; while triadimenol, ethion, and disulfoton were selective to this fungi.
(The abstract is excluded from the Creative Commons licence and has been copied with permission by the publisher.)
(original language: Portuguese)
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Database assignments for author(s): José Cola Zanuncio

Research topic(s) for pests/diseases/weeds:
biocontrol - natural enemies
Research topic(s) for beneficials or antagonists:
resistance to pesticides

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Pest and/or beneficial records:

Beneficial	Pest/Disease/Weed	Crop/Product	Country	Quarant.
Beauveria bassiana (entomopathogen)