Effect of Temperature and Humidity on Spinosad for Beetle Control
Author Information
Author(s): Athanassiou Christos G., Kavallieratos Nickolas G., Yiatilis Alcebiades E., Vayias Basileios J., Mavrotas Constantin S., Tomanović Željko
Primary Institution: Agricultural University of Athens
Hypothesis
The efficacy of spinosad against stored-grain beetles is influenced by temperature and humidity.
Conclusion
Spinosad is effective against stored-grain beetles, with efficacy varying significantly based on temperature and humidity levels.
Supporting Evidence
- Mortality of R. dominica reached 100% at 30°C and 55% humidity after 21 days.
- S. oryzae mortality increased with temperature, reaching 94% at 30°C.
- T. confusum showed low mortality even at high doses of spinosad.
- P. truncatus mortality exceeded 87% at 0.1 ppm after 14 days.
Takeaway
This study shows that spinosad works better to kill grain-eating beetles when it's hot and dry.
Methodology
The study involved bioassays with spinosad applied at various doses to different beetle species under controlled temperature and humidity conditions.
Limitations
The study focused on specific beetle species and conditions, which may not generalize to all stored-product pests.
Statistical Information
P-Value
p<0.0001
Statistical Significance
p<0.0001
Digital Object Identifier (DOI)
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