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Application strategies by selective medium treated with entomopathogenic bacteria Coptotermes curvignathus
- Source :
- Royal Society Open Science, Vol 8, Iss 4 (2021)
- Publication Year :
- 2021
- Publisher :
- The Royal Society, 2021.
-
Abstract
- The success of microbial termiticides in controlling termites depends on the ability of microbes to grow in different media and the functionality of the microbes as a resistant barrier or toxic bait. This study was conducted to understand the mortality rate and behaviour changes of the subterranean termite Coptotermes curvignathus Holmgren introduced with different concentrations of Serratia marcescens strain LGMS 1 and Pseudomonas aeruginosa strain LGMS 3 using wood and soil as bacterial transfer medium. In general, higher concentration of bacteria in soil caused a reduction in tunnelling activity and wood consumption and an increase in mortality. However, application on wood revealed a different outcome. Wood treated with S. marcescens of 10 6 CFU ml −1 concentration proved to be more efficient as bait than higher concentration applications as it caused a high mortality rate while still highly palatable for termites. Wood or soil treated with S. marcescens concentration higher than 10 9 CFU ml −1 creates a high toxicity and repellent barrier for termites. Pseudomonas aeruginosa of 10 9 CFU ml −1 concentrations applied on wood served as a slow-acting toxic bait. However, the ability for S. marcescens and P. aeruginosa to survive on wood is low, which made the bait unable to retain a useful level of toxicity for a long period of time and frequent reapplication is needed.
- Subjects :
- 0106 biological sciences
Science
Biological pest control
medicine.disease_cause
01 natural sciences
03 medical and health sciences
Coptotermes curvignathus
application strategies
bacterial transfer medium
Long period
medicine
Food science
Serratia marcescens
030304 developmental biology
0303 health sciences
Multidisciplinary
biology
Pseudomonas aeruginosa
biology.organism_classification
010602 entomology
Toxicity
Bacteria
Subjects
Details
- Language :
- English
- ISSN :
- 20545703
- Volume :
- 8
- Issue :
- 4
- Database :
- OpenAIRE
- Journal :
- Royal Society Open Science
- Accession number :
- edsair.doi.dedup.....9748a3e48ff56402c1c100f2bc20d1cc