Refine your search
Collections
A B C D E F G H I J K L M N O P Q R S T U V W X Y Z All
Murali Krishna, T.
- Evaluation of Oil Formulations of Nomuraea rileyi (Farlow) Samson against Spodoptera litura under Laboratory Conditions
Abstract Views :469 |
PDF Views:2
Authors
Affiliations
1 Department of Entomology, S.V. Agricultural College (A.N.G.R.A.U.), Tirupati (A.P.), IN
1 Department of Entomology, S.V. Agricultural College (A.N.G.R.A.U.), Tirupati (A.P.), IN
Source
International Journal of Plant Sciences, Vol 10, No 1 (2015), Pagination: 29-32Abstract
Three oil formulations of entomopathogenic fungus Nomuraea rileyi were evaluated for their efficacy along with crude formulation against third instar Spodoptera litura during 2011-2012 at the Department of Entomology, S.V. Agricultural College, Tirupati. Mean larval mortalities of 96.67, 93.33, 86.67 and 76.67 per cent, respectively were recorded with groundnut, sunflower, coconut oil based formulations and crude formulation of N. rileyi at highest concentration i.e., 1 x 108 spores ml-1 at 10 DAT. More than 70 per cent larval mortalities of S. litura were obtained with the concentrations above 1 x 106 spores per ml in case of groundnut oil and sunflower oil based formulations. The mortalities gradually reduced with concentration showing the least at 1 x 102 spores ml-1. Incubation period, was in negative correlation with the concentration of N. rileyi in all the formulations. Pupal mortalities and malformed adults emergence showed positive association with concentration of N. rileyi against S. litura larvae.Keywords
N. rileyi, Oil Formulation, Lab Evaluation, S. litura.References
- Babi Neeraja, D. (2008). Studies on mass production and pathogenicity of Nomuraea rileyi (Farlow) Samson : An entomopathogenic fungus. M.Sc. (Ag.) Thesis, Acharya N.G. Ranga Agricultural University, Hyderabad, A.P. (INDIA).
- Gundannavar, K.P. (2001). Utilization of entomopathogenic fungi in the management of Helicoverpa armigera (Hubner) in pigeonpea ecosystem. M.Sc. (Ag.) Thesis, University of Agricultural Sciences, Dharwad, KARNATAKA (INDIA).
- Hedgecock, S., Moore, D., Higgins, P.M. and Prior, C. (1995). Influence of moisture content on temperature tolerance and storage ofMetarhizium flavoviridae conidia in an oil formulation. Biocontrol Sci.& Technol., 5: 371-377.
- Kamala Jayanthi, P.D.K and Padmavathamma, K. (1996). Effect of microbial agents on different developmental stages of tobacco caterpillar, Spodoptera litura. Indian J. Plant Protec., 24(1): 102-109.
- Lalitha, C. (2007). Studies on the Entomopathogenic fungus Nomuraea rileyi (Farlow) samson with special reference to Spodoptera litura Fabricius. M.Sc. (Ag.) Thesis, Acharya N.G. Ranga Agricultural University, Hyderabad (A.P.) INDIA.
- Lopez, L.C.C. and Boucias, D.G. (1994). Studies on the cellular reactions of Spodoptera exigua larvae infected with the fungus Nomuraea rileyi. J. Invertebrate Pathol., 63(1): 101-102.
- Nagaraja, S.D. (2005). Effect of formulations of Nomuraea rileyi and spray equipments in the management of tobacco caterpillar in groundnut and pod borer in chickpea ecosystem. M.Sc (Ag.) Thesis, University of Agricultural Sciences, Dharwad, KARNATAKA (INDIA).
- Prior, C., Carey, M., Moore, D. and Bateman, R.P. (1988). The enhanced infectivity of Metarhizum flavoviridae in oil formulations to desert locusts at low humidities. Ann. Appl. Biol., 122:145-152.
- Ramakrishnan, N., Saxena, V. S. and Dhingra, S. (1983). Insecticide resistance in the population of Spodoptera litura (Fab.) in Andhra Pradesh. Pesticides, 18: 23-24.
- Ramegowda, G.K. (2005). Aerobiology, epizootiology and utilization of Nomuraea rileyi (Farlow) Samson. Ph. D. Thesis, University of Agricultural Sciences, Dharwad, KARNATAKA (INDIA).
- Siva Sankaran, P., Easwaramoorthy, S. and David, H. (1990). Pathogenicity and host range of Beauveria bassiana a fungal pathogen of Chilo infuscatellus Snellen. J. Biol. Control, 4 (1) : 48-51.
- Siva Sankaran, P., Easwaramoorthy, S. and Deniel, H. (1998). Influence of temperature and RH on the growth, sporulation and pathogenicity of Nomuraea rileyi. J. Biol. Control, 12(1): 71-76.
- Vimaladevi, P.S., Prasad, Y.G. and Chowdary, A. (2002). Effect of drying and formulation of conidia on virulence of the entomofungal pathogen Nomuraea rileyi (Farlow) Samson. J. Biol. Control, 16(1): 43-48.
- Testing the Pathogenecity of Nomuraea rileyi (Farlow) Samson against Castor Semilooper, Achaea janata Linnaeus
Abstract Views :208 |
PDF Views:115
Authors
Affiliations
1 Department of Entomology, S.V. Agricultural College, Tirupati 517 502, IN
1 Department of Entomology, S.V. Agricultural College, Tirupati 517 502, IN
Source
Journal of Biological Control, Vol 27, No 4 (2013), Pagination: 349–353Abstract
The larvae of II, III and IV instars of Achaea janata treated with subculture I, II and insect cultures of Nomuraea rileyi indicated larval mortalities to be positively correlated with the concentrations of all the three cultures. First subculture and insect culture were almost equally efficacious in causing the disease. Slightly lowered mortality were recorded with subculture II. Reduction in larval mortality was noticed with advancement of the age in A. janata larvae. Almost 100 per cent larvae were dead with 1x108 spores ml-1 concentration when treated in II intar and it was 5-15 per cent when treated in III and IV instars. However, relatively lower concentrations like 1x104 - and 1x105 spores ml-1 also recorded mortality of 50 per cent and above. The lowest concentration of 1x102 spores ml-1 resulted in 20-30 per cent larval mortality.Keywords
Nomuraea rileyi, Subculture, Insect Cultures, Achaea janata, Pathogenicity, Larval Mortality.References
- Boman HG. 1981. Insect responses to microbial infections. pp. 769–784. In: Burges H.D. (ed.) Microbial Control of Pests and Plant Diseases, 1970–1980, Academic Press London
- Fargues J, Rodriguez, RD. 1980. Susceptibility of the larvae of Spodoptera littoralis (Noctuidae: Lepidoptera) to the entomopathogenic hyphomycete, Nomuraea rileyi. Entomophaga 37: 545–554.
- Faria MR, De Tigno, Millani MS, Lecuona RE 1993. Natural incidence of Nomuraea rileyi (Farlow) Samson in a population of Anticarsia gemmatalis Hubner in Federal district. Anais da Sociedade Entomologica do Brazil 22: 385–388.
- Goh HG, Park JD, Choi KM, Lee SG. 1992 Effectiveness of selected insecticides and Nomuraea rileyi against beet army worm, Spodoptera exigua Hubner. Crop Prot. 34: 96–100.
- Gopalakrishnan C, Narayanan K. 1989. Epizootiology of Nomuraea rileyi (Farlow) Samson in field populations of Helicoverpa armigera in relation to three host plants. Biol Control 30: 50–52.
- Habib MEM, Patel PN. 1990. Pathogenicity of Nomuraea rileyi (Farlow) Samson to larvae of Spodoptera frugiperda. Revista de Agricultura Piracicaba 65: 83–90.
- Khan AR, Rajak RC. 1986 Influence of relative humidity on Beauveria bassiana infectivity in gram pod borer, Helicoverpa armigera. Symp Pers Mycol Res. 1: 218–223.
- Kulkarni NS, Lingappa S. 2002. Pathogenicity of entomopathogenic fungus, Nomuraea rileyi (Farlow) Samson on lepidopteran pests. Karnataka J Agric Sci. 15: 293–298.
- Lezama R, Alatorre R, Hernandaz JL. 1993. In vitro sensitivity of fall army worm larvae Spodoptera frugiperda to the fungi Paecilomyces fumosoroseus and Nomuraea rileyi. Agropecuari 2: 90–99.
- Morrow BJ, Boucias DG, Health MA. 1989. Loss of virulence in an isolate of an entomopathogenic fungus, Nomuraea rileyi after serial in vitro passage. J Econ Ent. 82: 404–407.
- Pallavi B, Kulkarni SA, Kulye MS, Chavan SB, Girish Kulkarni, Armugham, Rajendran Yadav PD, Yogesh Deshpande MV. 2008. Effect of repeated in vitro subculturing on the virulence of Metarhizium anisopliae against Helicoverpa armigera. Biocont Sci Techn. 18: 337–355.
- Rao UG, Phadke CH 1977 A muscardine disease of tobacco leaf eating caterpillar. Curr Sci. 46: 648–649.
- Vimaladevi PS. 1994. Conidial production of the entomopathogenic fungus Nomuraea rileyi and its evaluation for control of Spodoptera litura on Ricinus communis. J Inv Pathol. 63: 145–150.
- Bio-Efficacy of Certain Botanicals and Bio-Pesticides against Tobacco Caterpillar, Spodoptera litura Fab. in Rabi Groundnut
Abstract Views :360 |
PDF Views:214
Authors
Affiliations
1 Department of Entomology, S.V. Agricultural College, ANGRAU, Tirupati-517502 Andhra Pradesh, IN
1 Department of Entomology, S.V. Agricultural College, ANGRAU, Tirupati-517502 Andhra Pradesh, IN