Comparative bioefficacy of Paecilomyces fumosoroseus and Metarhizium anisopliae var. major on Crocidolomia binotalis (Lepidoptera:Pyralidae).
The bioefficacy of the entomopathogenic fungi Paecilomyces fumosoroseus (Wise) and Metarhizium anisopliae var major Sorokin was compared using Crocidolomia binotalis Zeller (CWW). Exposures to sprays of 20ml-1 to 2 x 10 spores ml-1 resulted in mean larval mortality ranging from 10.3 to 100.0% 12 day...
| Main Authors: | , |
|---|---|
| Format: | Conference or Workshop Item |
| Language: | English |
| Online Access: | http://psasir.upm.edu.my/id/eprint/31450/ |
| _version_ | 1848846957340000256 |
|---|---|
| author | Hashim, Norzita Ibrahim, Yusof |
| author_facet | Hashim, Norzita Ibrahim, Yusof |
| author_sort | Hashim, Norzita |
| building | UPM Institutional Repository |
| collection | Online Access |
| description | The bioefficacy of the entomopathogenic fungi Paecilomyces fumosoroseus (Wise) and Metarhizium anisopliae var major Sorokin was compared using Crocidolomia binotalis Zeller (CWW). Exposures to sprays of 20ml-1 to 2 x 10 spores ml-1 resulted in mean larval mortality ranging from 10.3 to 100.0% 12 days after treatment. At concentrations higher than 2 x 10 spores ml-1, larval mortality was recorded in excess of 80% for both entomopathogenic fungi. Most of these larvae were observed to be moribund two days after treatment. Estimates of mean effective dose ED50 computed for P.fumosoroseus was 1926 spores ml-1 with 95% fudicial limits between 700.2-4580 spores ml-1, and this was much lower than that of M. anisopliae which was 20,000 spores ml-1 with 95% fiducial limits between 9443-41530 spores ml-1. Potency of infection by P.fumosoroseus was superior as all its series of concentrations took a much shorter time to reach mean lethal time to infectivity (LT50) compared to M.anisopliae. |
| first_indexed | 2025-11-15T09:10:58Z |
| format | Conference or Workshop Item |
| id | upm-31450 |
| institution | Universiti Putra Malaysia |
| institution_category | Local University |
| language | English |
| last_indexed | 2025-11-15T09:10:58Z |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | upm-314502014-06-04T03:49:27Z http://psasir.upm.edu.my/id/eprint/31450/ Comparative bioefficacy of Paecilomyces fumosoroseus and Metarhizium anisopliae var. major on Crocidolomia binotalis (Lepidoptera:Pyralidae). Hashim, Norzita Ibrahim, Yusof The bioefficacy of the entomopathogenic fungi Paecilomyces fumosoroseus (Wise) and Metarhizium anisopliae var major Sorokin was compared using Crocidolomia binotalis Zeller (CWW). Exposures to sprays of 20ml-1 to 2 x 10 spores ml-1 resulted in mean larval mortality ranging from 10.3 to 100.0% 12 days after treatment. At concentrations higher than 2 x 10 spores ml-1, larval mortality was recorded in excess of 80% for both entomopathogenic fungi. Most of these larvae were observed to be moribund two days after treatment. Estimates of mean effective dose ED50 computed for P.fumosoroseus was 1926 spores ml-1 with 95% fudicial limits between 700.2-4580 spores ml-1, and this was much lower than that of M. anisopliae which was 20,000 spores ml-1 with 95% fiducial limits between 9443-41530 spores ml-1. Potency of infection by P.fumosoroseus was superior as all its series of concentrations took a much shorter time to reach mean lethal time to infectivity (LT50) compared to M.anisopliae. Conference or Workshop Item PeerReviewed Hashim, Norzita and Ibrahim, Yusof Comparative bioefficacy of Paecilomyces fumosoroseus and Metarhizium anisopliae var. major on Crocidolomia binotalis (Lepidoptera:Pyralidae). In: Symposium on Biological Control in the Tropics, 18-19 Mar. 1999, Serdang, Selangor. (pp. 151-153). English |
| spellingShingle | Hashim, Norzita Ibrahim, Yusof Comparative bioefficacy of Paecilomyces fumosoroseus and Metarhizium anisopliae var. major on Crocidolomia binotalis (Lepidoptera:Pyralidae). |
| title | Comparative bioefficacy of Paecilomyces fumosoroseus and Metarhizium anisopliae var. major on Crocidolomia binotalis (Lepidoptera:Pyralidae). |
| title_full | Comparative bioefficacy of Paecilomyces fumosoroseus and Metarhizium anisopliae var. major on Crocidolomia binotalis (Lepidoptera:Pyralidae). |
| title_fullStr | Comparative bioefficacy of Paecilomyces fumosoroseus and Metarhizium anisopliae var. major on Crocidolomia binotalis (Lepidoptera:Pyralidae). |
| title_full_unstemmed | Comparative bioefficacy of Paecilomyces fumosoroseus and Metarhizium anisopliae var. major on Crocidolomia binotalis (Lepidoptera:Pyralidae). |
| title_short | Comparative bioefficacy of Paecilomyces fumosoroseus and Metarhizium anisopliae var. major on Crocidolomia binotalis (Lepidoptera:Pyralidae). |
| title_sort | comparative bioefficacy of paecilomyces fumosoroseus and metarhizium anisopliae var. major on crocidolomia binotalis (lepidoptera:pyralidae). |
| url | http://psasir.upm.edu.my/id/eprint/31450/ |