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Ambethgar, V.
- Effect of Selected Fungicides onIn vitro Vegetative Growth of Beauveria bassiana (Balsamo) Vuillemin, a Pathogen of Rice Leaf Folders
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PDF Views:134
Authors
Affiliations
1 Regional Research Station, Tamil Nadu Agricultural University, Vridhachalam 606001, Tamil Nadu, IN
2 Centre for Plant Protection Studies, Tamil Nadu Agricultural University, Coimbatore 641003, Tamil Nadu, IN
3 National Bureau of Agriculturally Important Insects, Post Bag No. 2491, H. A. Farm Post, Hebbal, Bellary Road, Bangalore 560024, Karnataka, IN
1 Regional Research Station, Tamil Nadu Agricultural University, Vridhachalam 606001, Tamil Nadu, IN
2 Centre for Plant Protection Studies, Tamil Nadu Agricultural University, Coimbatore 641003, Tamil Nadu, IN
3 National Bureau of Agriculturally Important Insects, Post Bag No. 2491, H. A. Farm Post, Hebbal, Bellary Road, Bangalore 560024, Karnataka, IN
Source
Journal of Biological Control, Vol 24, No 1 (2010), Pagination: 85-87Abstract
The toxic effect of 10 fungicides on mycelial growth of Beauveria bassiana (isolate BbCm KKL 1100), a pathogen of rice leaf folders, was evaluated in vitro at three concentrations each: the normal field application rate (I.0X), 10-fold lower rate (0.1X) and 10-fold higher rate (10.0X) on agar plates. The fungicides tested were antagonistic to B. bassiana and inhibited the mycelial growth of either partially or completely depending on the concentration. At 10-fold higher concentration, all 10 fungicides caused total inhibition of mycelial growth. Two fungicides, viz., benomyl and hexaconazole, caused total inhibition of the fungus in all the three concentrations tested. Three fungicides viz., edifenphos, iprobenphos and mancozeb, appeared to be fungistatic at normal field dose (1.0X). Benomyl, carbendazim, hexaconazole, propiconazole and tricyclazole caused total inhibition of mycelial growth at 1.0X, while chlorothalonil, copper oxychloride and edifenphos were comparatively less toxic to B. bassiana causing 63.0, 72.6 and 76.3 per cent mycelial inhibition, respectively at 0.1X.Keywords
Beauveria bassiana, Fungicides, Mycelial Growth, Rice Leaf Folders.- Biological Compatibility of Beauveria bassiana (Balsamo) Vuillemin Isolate with Different Insecticides and Neem Formulations Commonly Used in Rice Pest Management
Abstract Views :330 |
PDF Views:138
Authors
Affiliations
1 Regional Research Station, TNAU, Vridhachalam 606001, Tamil Nadu, IN
2 Center for Plant Protection Studies, TNAU, Coimbatore 641003, Tamil Nadu, IN
3 Biological Control, ICAR, Bangalore 560024, Karnataka, IN
1 Regional Research Station, TNAU, Vridhachalam 606001, Tamil Nadu, IN
2 Center for Plant Protection Studies, TNAU, Coimbatore 641003, Tamil Nadu, IN
3 Biological Control, ICAR, Bangalore 560024, Karnataka, IN
Source
Journal of Biological Control, Vol 23, No 1 (2009), Pagination: 11-15Abstract
Compatibility of Beauveria bassiana (Balsamo) Vuillemin (isolate BbCm KKL 1100) with twelve insecticides and three neem formulations was examined on agar plate to develop suitable combinations for the management of insect pests in rice fields. All chemical and botanical insecticides inhibited mycelial growth of B. bassiana either partially or completely depending on their concentrations (10X, 1X and 0.1X, where X = treated concentration). Chemical insecticides completely inhibited the mycelial growth of B. bassiana, while the neem formulations inhibited 70-86% biomass production of the fungus at 10X concentration. At 1X concentration, carbofuran caused total inhibition, but all other insecticides caused 47.4-75.5% inhibition. However, at 0.1X concentration, only neem seed kernel extract, chlorpyriphos and dimethoate exhibited 22.2%, 27.3% and 32.6% mycelial inhibition, respectively, and these could be used with B. bassiana in the field condition.Keywords
Beauveria bassiana, Compatibility, Insecticides, Neem Products and Rice Pests.References
- Aguda, R. M., Rombach, M. C. and Shepard, B. M. 1986. Effect of neem oil on germination and sporulation of the entomogenous fungus, Metarhizium anisopliae. International Rice Research, Newsletter, 11: 34-35.
- Ambethgar, V. 1996. Occurrence of the white muscardine fungus, Beauveria bassiana (Bals.) Vuill. on the rice leaf folder, Cnaphalocrocis medinalis Guenee. Annals of Plant Protection Sciences, 4: 183-184.
- Anderson, T. E., Hajek, A. E., Roberts, D. W., Preisler, H. K. and Robertson, J. L. 1989. Colorado potato beetle (Coleoptera: Chrysomelidae): Effects of combinations of Beauveria bassiana with insecticides, Journal of Economic Entomology, 82: 83-89.
- Cadatal, T. D. and Gabriel. B. P. 1970. Effect of chemical pesticides on the development of fungi pathogenic to some rice insects. Philippines Entomologist, 1: 379-395.
- Clark, R. A., Casagrande, R. A. and Wallace, D. B. 1982. Influence of pesticides on Beauveria bassiana a pathogen of the Colorado potato beetle, Environmental Entomology, 11: 67-70.
- Foschi, S. and Grassi, S. 1985. Results of treatment with Beauveria bassiana (Balsamo) Vuill. and Metarhizium anisopliae (Metsch.) Sorokin on Ostrinia nubilais Hub. Difesa delle Piante, 8: 301- 308.
- Ferron, P. 1978. Biological control of insect pests by entomogenous fungi. Annual Review of Entomology, 23: 409-442. Gupta, R. B. L., Sharma, S. and Yadava, C. P. S. 2002. Compatibility of two entomofungi Metarhizium anisopliae and Beauveria bassiana with certain fungicides, insecticides and organic manures. Indian Journal of Entomology, 64: 48-52.
- Hassan, S. A. 1989. Testing methodology and the concept of the IOBC / WPRS Working Group, pp. 1-8.
- In: Jepson, P. C. (Ed.). Pesticides and Non-Target Invertebrates. Intercept, Wimborne, Dorset. Hazarika, L. K. and Puzari, K. C. 1990. Beauveria bassiana (Bals.) Vuill. for biological control of rice hispa (RH) in Assam, India. International Rice Research Newsletter, 15: 31.
- Hokkanen, H. M. T and Kotiluoto, R. 1992. Bioassay of the side effects of pesticides on Beauveria bassiana and Metarhizium anisopliae: standardized sequential testing procedure. World Pesticide Research Science Bulletin,11: 148-151.
- Moorhouse, E. R., Gillespie, A. T., Sellers, E. K. and Charnley, A. K. 1992. Influence of fungicides and insecticides on the entomogenous fungus, Metarhizium anisopliae, a pathogen of the vine weevil, Otiorhynchus sulcatus. Biocontrol Science and Technology, 2: 49-58.
- Nayak, P. and Srivastava, R. P. 1979. Occurrence of Beauveria bassiana (Bals.) Vuill. on certain rice pests. Indian Journal of Entomology, 41: 99-100.
- Olmert, I. and Kenneth, R. G. 1974. Sensitivity of entomopathogenic fungi, Beauveria bassiana, Verticillium lecanii and Verticillium sp. to fungicides and insecticides. Environmental Entomology, 3: 33- 39.
- Rama Mohan Rao, P. 1989. Studies on culture techniques, safety and control potential of certain entomopathogenic fungi of rice pests. Ph. D. Thesis, Tamil Nadu Agricultural University, Coimbatore, India. Rao, P. S. 1975. Widespread occurrence of Beauveria bassiana on rice pests. Current Science, 44: 441- 442.
- Ribba, G., Marcandier, S., Richard, G. and Larget, I. 1983. Susceptibility of the maize pyralid (Ostrinia nubilalis) (Lepidoptera: Pyralidae) to entomopathogenic hyphomycetes. Entomophaga, 28: 55-64.
- Statistical Analysis Systems Institute, Inc. 1982. SAS user’s guide: Statistics, 1982 ed. SAS Institute Inc., Cary, N.C. 583 pp.
- Pathogenicity of Certain Indigenous Isolates of Entomopathogenic Fungi against Rice Leaf Folder, Cnaphalocrocis medinalis (Guenee)
Abstract Views :235 |
PDF Views:115
Authors
Affiliations
1 Regional Research Station, TNAU, Vridhachalam - 606001, Tamil Nadu, IN
2 Agriculture College and Research Institute, TNAU, Madurai - 625104, Tamil Nadu, IN
3 Project Directorate of Biological Control, Bangalore- 560024, Karnataka, IN
4 Centre for Plant Protection Studies, TNAU, Coimbatore - 641003, Tamil Nadu, IN
1 Regional Research Station, TNAU, Vridhachalam - 606001, Tamil Nadu, IN
2 Agriculture College and Research Institute, TNAU, Madurai - 625104, Tamil Nadu, IN
3 Project Directorate of Biological Control, Bangalore- 560024, Karnataka, IN
4 Centre for Plant Protection Studies, TNAU, Coimbatore - 641003, Tamil Nadu, IN
Source
Journal of Biological Control, Vol 21, No 2 (2007), Pagination: 223-234Abstract
The pathogenicity of 42 local isolates of entomopathogenic fungi including Beauveria bassiaua (22), Metarlizium anisopliae (three), M. flavoriride (one), Nomuraea rileyi (four), Paecilomyces sp. (one), Aspergillus spp. (five), Fusarium spp. (three), Zoophthora radiants (two) and Entomoplithora sp. (one) originating from a range of insect species were evaluated against third instar larvae of Cnaphalocrocis medinalis. All the isolates tested were pathogenic to the pest at varying degrees. In single-dose (1 × 107conidia/ml) time-mortality assay, only five isolates of B. bassiaua, viz., BbCm KKL 1100, BbCm TVR 0101, BbCm ADT 0101 (isolated from C. medinalis), BbMp KKL 1195 (isolated from Marasmia partialis) and BbOn KKL 0597 (isolated from Oxya nitidnla), were superior to all other isolates with BbCm KKL 1100 having the lowest LT50 value of 7.81days. In the multiple dose assays (ranging from 1 × 104 to 1 × 109 conidia/ml), the Karaikal isolate of B. bassiaua (BbCm KKL 1100 isolated from C. medinalis) was found to be the most virulent. The LC50 value estimated at 13 days post-inoculation from three independent bioassays for this isolate was 2.8 × 103 conidia/ml. This was closely followed by BbOn KKL 0597 (isolated from Oxya uitidula) with a LC50 of 2.2 × 104 conidia/ml. Based on the time-dose mortality factor, the B. bassiaua isolate BbCm KKL 1100 has been selected as a potential microbial agent for further investigations in field conditions.Keywords
Cnaphalocrocis medinalis, Entomopathogenic Fungi, Pathogenicity.- Virulence of Entomopathogenic Fungi to Cashew Stem and Root Borer, Plocaederus Ferrugineus linnaeus (coleoptera: Cerambycidae) under Laboratory Conditions
Abstract Views :191 |
Authors
Affiliations
1 Regional Research Station, Tamil Nadu Agricultural University Vridhachalam 606001, Tamil Nadu, IN
1 Regional Research Station, Tamil Nadu Agricultural University Vridhachalam 606001, Tamil Nadu, IN