Mycelia and spent fermentation broth ofBeauveria bassianaincorporated into synthetic diets affect mortality, growth and development of larvalHelicoverpa zea(Lepidoptera: Noctuidae)
| Autor: | Brian M. Leckie, William E. Klingeman, Carl J. Jones, Roberto M. Pereira, Kimberly D. Gwinn, Bonnie H. Ownley |
|---|---|
| Rok vydání: | 2008 |
| Předmět: | |
| Zdroj: | Biocontrol Science and Technology. 18:697-710 |
| ISSN: | 1360-0478 0958-3157 |
| Popis: | Beauveria bassiana endophytically colonises corn (Zea mays) reducing tunneling from European corn borer (Ostrinia nubilalis). Endophytic colonisation of other plants by B. bassiana has been reported, and potentially, may reduce insect feeding on these plants. We evaluated the effects on larval growth and development, and mortality of different rates of dried, ground mycelia and water-soluble metabolites from fermentation broth culture of different isolates of B. bassiana incorporated into a synthetic diet and fed to neonate bollworm, Helicoverpa zea larvae. Development was delayed, weights of larvae were lower, and mortality was high for larvae fed the highest rates (1.0 and 5.0%, w/v) of mycelia incorporated diet compared to control. Insects fed diets containing mycelia of B. bassiana isolate 11-98 had the greatest mortality. Mortality was 100% for larvae fed 5% (w/v) mycelia incorporated diet of isolate 11-98, and 61% for isolate 3-00. For insects fed low rates (0.1 to 0.5%, w/v) of mycelia inc... |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|