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Suresh Chand, D.
- Yield Loss in Two Rice Cultivars by the Small Rice Grasshopper, Oxya nitidula (Walker)
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Authors
Affiliations
1 Arunachal Pradesh Research Centre, Zoological Survey of India, Itanagar-791113, IN
2 G.S. Gill Research Institute, Guru Nanak College, Chennai–600 042, IN
1 Arunachal Pradesh Research Centre, Zoological Survey of India, Itanagar-791113, IN
2 G.S. Gill Research Institute, Guru Nanak College, Chennai–600 042, IN
Source
Journal of Environment and Sociobiology, Vol 7, No 1 (2010), Pagination: 65-68Abstract
Present investigation aimed at evaluating the yield loss of two rice cultivars CO43 and CO45 by the small rice grasshopper Oxya nitidula (Walker). Three different growth stages of the cultivars were selected 31 days after sowing (DAS), 46 DAS, and 61 DAS for evaluating the damage potential by the small rice grasshopper. Infestation was carried out at different population level, 2 insects/cage, 4 insects/cage, 6 insects/ cage and 8 insects/cage. Damage caused by the insects was directly related to the grains harvested on the two rice cultivars. The result suggests that grain loss increased with increasing number of insects infesting the plant. At 31 DAS treatment damage was more, compared to other DAS treatments.Keywords
Oryza sativa, Oxya nitidula, Yield Loss.- Spatial Distribution Pattern of Some Plant Species in the Vandalore Reserve Forest:Food Preferences of Diabolocatantops pinguis (Orthoptera:Acrididae)-A Paradigm Study
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Authors
Affiliations
1 Zoological Survey of India, M-Block, New Alipore, Kolkata-700 053, IN
2 G.S. Gill Research Institute, Guru Nanak College, Velachery, Chennai 600 042, IN
1 Zoological Survey of India, M-Block, New Alipore, Kolkata-700 053, IN
2 G.S. Gill Research Institute, Guru Nanak College, Velachery, Chennai 600 042, IN