Citation
Lim J . L ., . and Tan K . H ., . (1986) The effect of Pseudomonas aeruginosa on the larvae of Spodoptera mauritia Boisd. [Proceedings Paper]
Abstract
An outbreak of disease in the laboratory culture of S. mauritia led to the investigation of the pathogens involved. The pathogen was found to be P. aeruginosa and the source of infection was from grasses contaminated with the bacteria. Healthy caterpillars were reinfected with the isolated bacteria in order to prove Koch's postulates. The symptoms of the disease included the loss of response to external stimuli sluggish movements loss of appetite. The caterpillars also changed from a healthy green colour to yellow and yellow brown when infected. Dose response studies revealed that the first and second instar larvae were the most susceptible stages to infection by P. aeruginosa as compared to the later instars. However high mortality was also observed in the final instar larvae where majority of the larvae died at the prepupa stage. The possibility of P. aeruginosa being used as a biological control agent against S. mauritia was discussed.
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Abstract
An outbreak of disease in the laboratory culture of S. mauritia led to the investigation of the pathogens involved. The pathogen was found to be P. aeruginosa and the source of infection was from grasses contaminated with the bacteria. Healthy caterpillars were reinfected with the isolated bacteria in order to prove Koch's postulates. The symptoms of the disease included the loss of response to external stimuli sluggish movements loss of appetite. The caterpillars also changed from a healthy green colour to yellow and yellow brown when infected. Dose response studies revealed that the first and second instar larvae were the most susceptible stages to infection by P. aeruginosa as compared to the later instars. However high mortality was also observed in the final instar larvae where majority of the larvae died at the prepupa stage. The possibility of P. aeruginosa being used as a biological control agent against S. mauritia was discussed.
Additional Metadata
| Item Type: | Proceedings Paper |
|---|---|
| Additional Information: | 18 ref. Summary En |
| AGROVOC Term: | SPODOPTERA |
| AGROVOC Term: | PSEUDOMONAS |
| AGROVOC Term: | ORGANISMOS PATOGENOS |
| AGROVOC Term: | ORGANISMOS PARA CONTROL BIOLOGICO |
| Geographical Term: | MALAYSIA |
| Depositing User: | Ms. Norfaezah Khomsan |
| Last Modified: | 24 Apr 2025 05:25 |
| URI: | http://webagris.upm.edu.my/id/eprint/14006 |
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