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Remadevi, O. K.
- Epidemic Outbreak of Lac Insect, Kerria lacca (Kerr.) , on Santalum album (Sandal) and its Control
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Indian Forester, Vol 123, No 2 (1997), Pagination: 143-147Abstract
An epidemic outbreak of lac insect Kerria lacca on sandal and its host trees at Gottipura and Nallal in Hoskote range (Karnataka) is reported. It is found that 24.5% of the trees were heavily affected (9.3% of which are dead), 25.5% had medium attack and 50% were completely free. To control the lac infestation, the affected branches were lopped off, burnt and an insecticide viz., Ekalux 20AF 0.5% mixed with 0.05% sticker was sprayed on the tree. The treated trees were watered. This has completely controlled the lac infestation on sandal. A second spray with any insecticides, like Rogor 30 EC, Fenvalerate, Cypermethrin or Dimethoate, may be sprayed after formation of new flush of leaves, to check further secondary infection.
- A New Record of the Insect Defoliator, Pteroma plagiophleps Hamp. (Lepidoptera: Psychidae) from Mangroves along the Goa Coast (India)
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Indian Forester, Vol 121, No 2 (1995), Pagination: 153-155Abstract
No abstract- A Study on Tourist Visitations in Protected Areas of Central Western Ghats in Karnataka
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Indian Forester, Vol 137, No 4 (2011), Pagination: 403-410Abstract
A study was undertaken to find out various aspects of tourist visitations to the protected areas in Central Western Ghats of Karnataka. The rich biodiversity in this region attract lot of tourists and nature lovers. Kudremukh National Park, Someshwar sanctuary and Mookambika sanctuary were selected as study area. Data on number of visitors taken from records of Forest Department and a questionnaire based study was conducted to gather information on socio-economic status of visitors, their willingness to pay for visiting the sanctuaries, their preference to see wildlife and their impression on the hospitality and facilities in the sanctuaries. The study showed that majority of the visitors is attracted by the rich wildlife and scenic beauty in the area. Most of the visitors wanted to see tiger during the visit. Only 5.6 % of the visitors regarded butterflies as part of wildlife and wanted to see them. Gender details, educational and economic profile of visitors as well as their willingness to pay for visiting the sanctuaries and thus supporting conservation measures were analysed.Keywords
Ecotourism, Conservation, Tourist Attractions, Visitor Satisfaction- Toximetric Studies on Some Major Bamboo Pathogens
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Indian Forester, Vol 139, No 9 (2013), Pagination: 814-820Abstract
Nigrospora oryzae was found to be an important causal agent of leaf spot disease on Bambusa nutan, Fusarium oxysporum on B. balcooa with more than 50% severity and F. verticilliodes on Dendrocalamus asper as the causal agents for emerging and growing culm rot with 100% severity in some areas. Bio- control study was conducted to know the antagonistic activity of six Trichoderma species namely T. hamatum, T. harzianum, T. viride, T. virens, T.koningii and T. pseudokoningii and the anti-fungal activity of leaf and bark extracts of Cleistanthus collinus and Prosopis juliflora against the fungal pathogens was tested. Highest inhibition was obtained with T. harzianum for all test pathogens. Though both bark and leaf extract of C. collinus and P. juliflora exhibited inhibition against test pathogens. Highly significant growth inhibition (>95%) was achieved by both leaf and bark extract of P. juliflora against N. oryzae. Even lowest concentration of leaf extract (0.01%) showed discernible effect. The effectiveness of plant extract for F. oxysporum and F. verticilliodes were between 50-65%.Keywords
Bamboo Pathogens, Trichoderma spp., Cleistanthus collinusand Prosopis juliflora- New Report of Aulonosoma insignis Grouvelle (Coleoptera: Passandridae) as a Larval Ectoparasitoid of Sinoxylon anale Lesne (Coleoptera: Bostrichidae)
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Authors
Affiliations
1 Wood Biodegradation Division, Institute of Wood Science and Technology, 18th Cross, Malleswaram, Bangalore 560001, Karnataka, IN
1 Wood Biodegradation Division, Institute of Wood Science and Technology, 18th Cross, Malleswaram, Bangalore 560001, Karnataka, IN
Source
Journal of Biological Control, Vol 26, No 1 (2012), Pagination: 75-76Abstract
The powder post beetle, Sinoxylon anale Lesne, is an economically important coleopteran pest of plantation timber causing significant reduction in wood biomass. It is a common bostrichid which occurs throughout India within forests, tomber depots and saw mills. During a survey in ITC Timber yards, Bhadrachalam, India, in 2007-2008, the larvae of the passandrid, Aulonosoma insignis were observed to be ectoparasitic on the larvae of S. anale infesting wooden logs of subabul (Leucaena leucocephala (Lam.) de wit).Keywords
Sinoxylon anale, Aulonosoma insignis, Ectoparasite, Coleoptera, Timber and Leucaena leucocephala.Full Text
References
- Beeson CFC. 1941. The ecology and control of the forest insects of India and the neighbouring countries. Government of India (1961) reprint, 761 pp.
- Mathew G. 1985. Some coleopteran predators associated with timber pests in Kerala (India). Entomon 10 : 179–181.
- Remadevi OK. 2002. Powder post beetle attack on plantation timber in depots and its management. My Forest 38: 23–27.
- Stebbing EP. 1914. Indian forest insects of economic importance – Coleoptera. H.M.’s Secretary of State for India in Council, 117 pp.
- Effects of Different Adjuvants on the Growth and Sporulation of the Entomopathogenic Fungus, Metarhizium anisopliae (METSCH)
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Authors
Affiliations
1 Department of Entomology, Ashoka Trust for Research in Ecology and the Environment, Royal Enclave, Srirampura, Jakkur P.O., Bengaluru-560064, IN
1 Department of Entomology, Ashoka Trust for Research in Ecology and the Environment, Royal Enclave, Srirampura, Jakkur P.O., Bengaluru-560064, IN
Source
Indian Forester, Vol 140, No 1 (2014), Pagination: 93-97Abstract
Assessment of the effect of formulation components on viability of fungal conidia is imperative prior to their use in formulations. A range of adjuvants were evaluated for their effect on growth and sporulation of three Metarhizium isolates to identify an appropriate adjuvant for developing a liquid formulation. Oils such as neem oil, pongam oil, eucalyptus oil, SG oil, coconut oil and diesel, each at 0.1, 0.5 and 1.0% and mineral oil at 1,2,3,4&5% concentrations and surfactants such as glycerol at 0.1, 0.2, 0.5, 0.8&1.0% and tween-80 at 0.01, 0.02, 0.05&0.08% concentrations were tested to find out the most appropriate adjuvant and its optimum concentration required for making liquid formulations of Metarhizium. Even though biomass and sporulation in mineral oil formulation was slightly superior to pongam oil formulation, the insecticidal activity of pongam oil endows an added advantage for its use in formulations for controlling insect pests. The observations on biomass produced after 7 days of treatment with surfactants revealed that treatments with tween-80 at 0.08 and 0.05% and glycerol at 1.0 and 0.8% were significantly superior to untreated control.Keywords
Metarhizium, Anisopliae, Entomopathogens, Formulation, Oil , Surfactants.References
- Alves, R.T., Bateman, R.P., Gunn, J., Prior, C. and Leather, S.R. (2002). Effects of different formulations on viability and medium term storage of Metarhizium anisopliae conidia. Neotropical entomology, 31(1): 91-99.
- Alves, R.T., Bateman, R.P., Prior, C. and Leather, S.R. (1998). Effect of simulated solar radiation on conidial germination of Metarhizium anisopliae in different formulations. Crop Protection, 17: 675–679.
- Balachander, M., Remadevi, O.K., Sasidharan, T.O. and Sapna Bai, N. (2009). Infectivity of Metarhizium anisopliae (Deuteromycotina: Hyphomycetes) isolates to the arboreal termite, Odontotermes sp. (Isoptera: Termitidae). Inter. J. Trop. Ins. Sci. (Cambridge), 29(4): 202-207.
- Bharathi, H.T. (2005). Isolation and characterization of entomopathogenic fungi and their effectiveness. Ph.D thesis. University of Agricultural Sciences, Dharwad. 129pp.
- Burgess, H.D. (1998). Formulation of Microbial Biopesticides. Kluwer Academic Publishers. London, U.K. 412 pp.
- Chavan, B.P. and Kadam, J.R. (2008). Effect of various adjuvants on growth and development of the entomopathogenic fungus, Verticillium lecanii(Zimmermann) Viegas. Journal of Biological Control, 22(2):375-381.
- Daoust, R.A. and Roberts, D.W. (1983). Studies on the prolonged storage of Metarhizium anisopliae conidia: effect of growth substrate on conidial survival and virulence against mosquitoes. Journal of InvertebratePathology, 41:161-170.
- Easwaramoorthy, S. and Jayaraj, S. (1977). The effect of temperature, pH and media on the growth of the fungus, Cephalosporium lecanii. Journal of InvertebratePathology, 29:399-400.
- Faria, M. and Wraight, S.P. (2001). Biological control of Bemisia tabaci with fungi. Crop Protection, 20: 767–778.
- Ibrahim, L., Butt, T.M., Beckett, A. and Clark, S.J. (1999). The germination of oil-formulated conidia of the insect pathogen, Metarhizium anisopliae. Mycological Research, 103: 901–907.
- Ignoffo, C.M. (1992). Environmental factors affecting persistence of entomopathogens. Florida Entomologist, 75(4): 516-525.
- Jackson, M.A., Dunlap, C.A. and Jaronski, S.T. (2010).
- Ecological considerations in producing and formulating fungal entomopathogens for use in insect biocontrol. Biocontrol, 55: 129-145.
- Leland J.E. (2001). Environmental-Stress Tolerant Formulations of Metarhizium anisopliae var. acridum for Control of African Desert Locust (Schistocerca gregaria). Ph.D thesis, Virginia Polytechnic Institute, Virginia. 188 pp.
- Polar P., Kairo, M.T.K., Moore, D., Pegram, R. and John, S.A. (2005). Comparison of water, oils and emulsifiable adjuvant oils as formulating agents for Metarhizium anisopliae for use in control of Boophilus microplus. Mycopathologia, 160: 151-157.
- Prior, C., Jollands, P. and Le Patourel, G. (1988). Infectivity of oil and water formulations of Beauveria bassiana (Deuteromycotina: Hyphomycetes) to the cocoa weevil pest Pantorhytes plutus (Coleoptera: Curculionidae). Journal of Invertebrate Pathology, 52: 66–72.
- Remadevi, O.K., Sasidharan, T.O., Balachander, M. and Sapna Bai, N. (2010). Prospects of developing Metarhizium based mycoinsecticide for pest management in forestry. Journal of Biopesticides, 3(1): 38-41.
- Santharam, G., Easwaramoorthi, S., Regupathy, A. and Jayaraj, S. (1977). Possibility of increasing the pathogenicity of the white halo fungus, Cephalosporium lecaniion the coffee green bug, Coccus viridis during summer. Journal of Plantation Crops, 5:121-122.
- Sapna Bai, N., Sasidharan, T.O., Remadevi, O.K., Dharmarajan, P. and Balachander, M. (2010). Efficacy of Metarhizium isolates against the polyphagous defoliator pest, Spilarctia obliqua Walker (Lepidoptera: Arctiidae) on forestry species. Journal of Tropical Forest Science, 22(1): 1-7.
- Sasidharan, T.O., Remadevi, O.K., Usha Rani, R., Dharmarajan, P. and Sapna Bai, N. (2009). Evaluation of cultural characteristics and pathogenicity of some isolates of Metarhizium anisopliae against teak defoliator, Hyblaea puera Cramer. Uttar Pradesh Journal of Zoology, 29(2): 143-148.
- Wraight, S.P., Jackson, M.A. and De Kock, S.L., (2001). Production, stabilization and formulation of fungal biocontrol agents. In: Fungi as Biocontrol Agents. (Butt, T.M., Jackson, C., Magan, N. Eds.), CAB International, Wallingford, UK, pp. 253–287.
- A New Genus and Species of Pteromalidae (Hymenoptera: Chalcidoidea) Parasitic on Ghoon Borers of Bamboo in Karnataka (India)
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Authors
Affiliations
1 Systematic Entomology Laboratory, Department of Zoology, University of Calicut, Calicut, 673 635, Kerala, IN
2 Institute of Wood Science & Technology, Bangalore, 560 003, Karnataka, IN
1 Systematic Entomology Laboratory, Department of Zoology, University of Calicut, Calicut, 673 635, Kerala, IN
2 Institute of Wood Science & Technology, Bangalore, 560 003, Karnataka, IN
Source
Journal of Biological Control, Vol 22, No 2 (2008), Pagination: 247-253Abstract
Cyrtophagoides ghooubori Narcndran gen. & sp. nov. is described as a parasitoid of the Ghoon borer, Dinoderus sp., of Bamboo in Karnataka, India and compared to related genera. Heydonia indica Narendran (Pteromalidae) is newly reported from the tunnels of Dinoderus sp. and Dendrocalamus strictus (Rosch,) (Pteromalidae) is newly reported from India.Keywords
Cyrtophagoides gliooubori, Heydonia, Dinoderus, Dendrocalamus.Full Text