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Ahmed, P.
- Field Studies on the Nature of Damage Caused by Sugarcane Plassey Borer Chilo tumidicostalis Hampson (Lepidoptera:Pyralidae)
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Authors
Affiliations
1 Krishi Vigyan Kendra (A.A.U.), Tinsukia (Assam), IN
2 Department of Entomology, Assam Agricultural University, Jorhat (Assam), IN
1 Krishi Vigyan Kendra (A.A.U.), Tinsukia (Assam), IN
2 Department of Entomology, Assam Agricultural University, Jorhat (Assam), IN
Source
International Journal of Plant Protection, Vol 11, No 1 (2018), Pagination: 76-79Abstract
Field experiment was conducted to investigate the nature of damage caused by sugarcane plassey borer C. tumidicostalis. Generally, there are two phases of infestation of the pests known as primary and secondary infestation. From the investigation, it was observed that the mean number of internodes damaged was more or less similar (1 to 3 internodes) in both the primary and secondary infestation. The mean number of damaged internode was 1.88, 2.06 and 2.42 which was slightly more in the secondary infested canes with 1.78, 2.56 and 2.74 in August, September and October, respectively. However, there was a great variation in the length of spindle damaged by the larvae in primary and secondary infested cane. Similarly, the mean length of internode damaged was more in primary infested canes than secondary infested canes. The mean proportion damaged length caused by the larvae in primary infested cane was 0.46, 0.45 and 0.41 during August, September and October as against 0.18, 0.13 and 0.16 in secondary infested cane, respectively.Keywords
Plassey Borer, Primary Infestation, Secondary Infestation, Spindle.
References
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- Integrated Pest Management in Potato with Special Reference to ITK
Abstract Views :220 |
PDF Views:1
Authors
Affiliations
1 District Agriculture Office, Tinsukia (Assam), IN
2 Krishi Vigyan Kendra (A.A.U.), Tinsukia (Assam), IN
1 District Agriculture Office, Tinsukia (Assam), IN
2 Krishi Vigyan Kendra (A.A.U.), Tinsukia (Assam), IN
Source
International Journal of Plant Protection, Vol 11, No 2 (2018), Pagination: 141-145Abstract
An experiment was conducted in the Horticultural orchard of Assam Agricultural University, Jorhat from 2014-15 and 2015-16 to develop IPM module against pest and diseases of potato. Ten different IPM modules were followed against the target pest and diseases. Out of these, the IPM module consisting of soil application of MOC followed by high ridge planting and use of yellow sticky trap followed by application of malathion 5 per cent dust and Ridomil MZ-72 @ 0.01% recorded lowest infestation of mole cricket and red ant with 3.42 and 7.71 per cent, respectively with a highest yield of 248.61 q/ha. Likewise, the per cent increase in yield and benefit cost ratio was observed highest (8.54) in the module with low incidence of late blight and leaf roll disease.Keywords
IPM, Mole Cricket, Red Ant, Malathion, Ridomil MZ-72.References
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