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Routray, S.
- Effect of Aphis craccivora Koch. Reared on Different Host Plants on the Biology of Cheilomenes sexmaculata (Fabricius)
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Authors
Affiliations
1 Department of Entomology, S. V. Agricultural College, Tirupati - 517 501, ANGRAU, Andhra Pradesh, IN
2 Department of Entomology, College of Agriculture, OUAT, Bhubaneswar-3, IN
1 Department of Entomology, S. V. Agricultural College, Tirupati - 517 501, ANGRAU, Andhra Pradesh, IN
2 Department of Entomology, College of Agriculture, OUAT, Bhubaneswar-3, IN
Source
Journal of Biological Control, Vol 30, No 1 (2016), Pagination: 19-24Abstract
Biology of Cheilomenes sexmaculata (Fabricius) was studied on aphids reared on different host plants. The total life cycle of C. sexmaculata ranged from 19.56 days to 27.87 days when aphids fed to this were reared on six different host plants viz., cowpea, groundnut, cotton, sunflower, greengram and blackgram. Adult male longevity varied from 11.00 to 14.00 days. Adult female longevity varied from 14.00 to 17.00 days. Shortest larval duration (6.75 days) was noticed on cowpea and longest larval duration (8.25 days) was noticed on groundnut. On cotton and sunflower 25 per cent larval mortality each were noticed. The head capsule width of first, second, third and fourth instar larvae of C. sexmaculata were 0.28±0.09 mm, 0.42±0.06 mm, 0.58±0.01 mm and 0.63±0.03 mm respectively when fed to aphids from nucleus culture.Keywords
Aphis craccivora, Cheilomenes sexmaculata, Host Plants, Larval Duration, Larval Mortality.References
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- Eswaramoorthy S, Kurup NK, Santhalakshmi G. 1998. Biology and predatory potential of the lady bird beetle Cheilomenes sexmaculata (Fab.) (Coleoptera: Coccinellidae) on sugarcane aphids. J Biol Control 12(1): 47–50.
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- Kumar A, Prasad CS, Tiwari GN. 2013. Biology and feeding potential of Cheilomenes sexmculata (Fab.) on bean aphid, Aphis craccivora Koch and mustard aphid (Liphaphis erysimi L.). Trends in Biosci. 6(1): 33–35.
- Lalithambika KR. 2012. Biology, predation efficiency and pesticide susceptibility of coccinellid predator, Cheilomenes sexmaculata (Fabricius) (Coccinellidae: Coleoptera) on cowpea. M. Sc. Thesis. Acharya N G Ranga Agricultural University, Hyderabad, India.
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- Patel DP. 1998. Bionomics and predatory potential of Menochilus sexmaculatus Fab. and Chrysoperla carnea St. reared on maize aphid (Rhopalosiphum maidis Fitch) along with their comparative susceptibility to some neem based pesticides. M.Sc. (Agri.) thesis, Gujarat Agricultural University, Sardar Krushinagar, India.
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- Management of Insecticide Resistance in Insect
Abstract Views :209 |
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Authors
D. Dey
1,
S. Routray
1
Affiliations
1 Department of Entomology, College of Agriculture, Orissa University of Agriculture and Technology, Bhubaneswar (Odisha), IN
1 Department of Entomology, College of Agriculture, Orissa University of Agriculture and Technology, Bhubaneswar (Odisha), IN
Source
Rashtriya Krishi (English), Vol 11, No 1 (2016), Pagination: 22-23Abstract
Resistance has been defined as a developed ability in a strain to tolerate doses of toxicants which would prove lethal to the majority of individuals in normal population of the same species (Anonymous,1957), World Health Organization (WHO), Expert Committee on Insecticides, (1957). Insecticides resistance management (IRM) strategies are becoming more important in agricultural production system. Pest resistance to a insecticide can be managed by reducing selection pressure by the insecticide on the pest population.Preventing and managing resistance to insecticides is an important stewardship practice that ensure insect control products will remain effective long term.In other words, the situation when all the pest except the most resistant ones are killed by a given chemical should be avoided.Resistance to insecticides was first documented in 1914 by A. L. Melander in the Journal of Economic Entomology.References
- Hoy, M.A. (1995). Multitactic resistance management: An approach that is long overdue? Fla. Entomol., 78: 443 - 451.
- Melander, A.L. (1914). Can insects becomes resistant to sprays. J. Econ. Entomol.
- Roush, R.T. and Tabashnik, B. E. (1990). Pesticide resistance in arthropods. Chapman and Hall, NEW YORK, U.S.A.
- http://entomologytoday.files.wordpress.com/2014/04/melander-jee-1914.pdf.
- Snails and Slugs as Crop Pests
Abstract Views :214 |
PDF Views:0
Authors
S. Routray
1,
D. Dey
1
Affiliations
1 Orissa University of Agriculture and Technology, Bhubaneswar (Odisha), IN
1 Orissa University of Agriculture and Technology, Bhubaneswar (Odisha), IN
Source
Rashtriya Krishi (English), Vol 11, No 1 (2016), Pagination: 40-41Abstract
Snails and slugs are part of the class of creatures called gastropods. Gastropod comes from the Greek wordsgastros (stomach) and podos (foot). They are the animals without backbones, having asymmetrical, unsegmented and spirally coiled body. When snails have a well-developed shell, slugs have only a rudimentary shell often enclosed in a visceral hump. Snails and slugs are hermaphrodites but there is reciprocal exchange of spermatozoa as they mature before development of eggs. Self-fertilization is prevented. They have good protection against dehydration; hence they avoid direct sunlight and environments with a low relative humidity. They hide during day time in moist places or under debris and feed mainly at night when the temperature drops and humidity rises. Snails secrete light yellow slime and slugs secrete colourless slime which becomes silvery after drying.References
- Aravind, N.A., K.P. Rajashekhar and Madhyastha, N.A . (2010). A review of ecological studies on patterns and processes of distribution of land snails of the Western Ghats, India. Proceeding of World Congress of Malacology, 222pp.
- Atwal, A.S. and Dhaliwal, G.S. (2010). Birds, mammals, snails and slugs.Agricultural Pests of South Asia and Their Management. Kalyani Publishers, 519pp.
- Habitat Manipulation for Effective Biological Control
Abstract Views :192 |
PDF Views:0
Authors
Affiliations
1 Department of Entomology, Orissa University of Agriculture and Technology, Bhubaneswar, (Odisha), IN
1 Department of Entomology, Orissa University of Agriculture and Technology, Bhubaneswar, (Odisha), IN
Source
Rashtriya Krishi (English), Vol 12, No 1 (2017), Pagination: 43-44Abstract
Habitat manipulation involves altering the cropping system to conserve, augment or enhance the effectiveness of a natural enemy. Habitat manipulation also called as ecological engineering, aims to improve the living conditions for natural enemies within the agro ecosystem, by introducing resources needed for fulfilment of their vital requirements.References
- Kumar, L., Yogi, M.K. and Jagdish, J. (2013). Habitat Manipulation for Biological Control of Insect Pests: A Review. Res. J. Agric. & Forestry Sci., 1(10): 27-31.
- Nilsson, U., Porcel, M., Swiergiel, W. and Wivstad, M. (2016). Habitat manipulation– as a pest management tool in vegetable and fruit cropping systems, with the focus on insects and mites. ISBN 978-91-576-9402-7. pp. 9-14.