Effect of temperature and host plant leaf morphology on the efficacy of two entomopathogenic biocontrol agents of Thrips palmi (Thysanoptera: Thripidae)
The efficacy of two entomopathogenic biocontrol agents, Steinernema feltiae (Filipjev) and Verticillium lecanii (Zimmerman) Viégas (reclassified now as Lecanicillium muscarium (Petch) Zare & Gams), against Thrips palmi Karny was investigated. Assessments of the effect of temperature on the effic...
Saved in:
Published in | Bulletin of entomological research Vol. 95; no. 4; pp. 321 - 327 |
---|---|
Main Authors | , , |
Format | Journal Article |
Language | English |
Published |
Cambridge, UK
Cambridge University Press
01.07.2005
|
Subjects | |
Online Access | Get full text |
Cover
Loading…
Summary: | The efficacy of two entomopathogenic biocontrol agents, Steinernema feltiae (Filipjev) and Verticillium lecanii (Zimmerman) Viégas (reclassified now as Lecanicillium muscarium (Petch) Zare & Gams), against Thrips palmi Karny was investigated. Assessments of the effect of temperature on the efficacy of S. feltiae indicated that higher mortality of T. palmi was recorded at 20°C compared to either 15 or 25°C, whereas significantly higher T. palmi mortality followed application of L. muscarium at 25°C. Testing the control agents efficacy on three host plants; chrysanthemum, sweet pepper and cucumber, under constant temperature and high humidity conditions produced no significant difference in the level of T. palmi larval mortality on each host plant. Incorporating the chemical insecticide imidacloprid with both biological agents in a combined control strategy increased T. palmi juvenile mortality. The potential role of S. feltiae and L. muscarium within integrated pest management programmes for the control of T. palmi is discussed. |
---|---|
Bibliography: | PII:S0007485305000313 ark:/67375/6GQ-RXPK2PGG-X ArticleID:00031 istex:1E63A286CF9CD3D1C499B63B2A8AB48D7DF3A7EE ObjectType-Article-1 SourceType-Scholarly Journals-1 ObjectType-Feature-2 content type line 23 |
ISSN: | 0007-4853 1475-2670 |
DOI: | 10.1079/BER2005363 |