An Economic Analysis of White Grub Infestation on Sugarcane in Northern Karnataka
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Date
2016-06
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University of Agricultural Science, Dharwad
Abstract
Sugarcane has been identified as an important commercial crop. Sugarcane production has hampered due to white grub infestation. The overall objective of the study was to analyse the economic impact of white grub infestation on sugarcane in northern Karnataka. The study was conducted in three districts of northern Karnataka, viz. Belagavi, Bagalkote and Vijayapur. Stratified random sampling method was employed for the selection of districts (3), taluks (6), villages (2) and farmers (144). The study is based on primary data collected from 120 farmers having fields with white grub infested sugarcane crop (FFWWGISC) and 24 farmers having fields with white grub non-infested sugarcane crop (FFWWGNISC) for the crop year 2015-16. Descriptive statistics, partial budgeting technique and technological adoption index were employed.
The results revealed that proportion of sugarcane area infested was higher in Belagavi district (54.16 %) followed by Bagalkote (49.61 %) and Vijayapur districts (39.38 %). Majority (64.17 %) of the farmers opined that infestation was due to deficit soil moisture. The per ha net loss occurrence ( 48,257) was due to the incidence of white grub in FFWWGISC. A majority of the sample FFWWGISC realized the gross income of 2,58,586 per ha from Co-92005 sugarcane variety in case of without infestation and the same farmers have experienced the yield loss of 1,13,698 due to without control of white grub. A white grub management practice in sugarcane crop was found profitable by using the biological method and thereby reduce the economic loss. Technological adoption index was highest in case of cultural method (27.08 %) followed by chemical method (22.33 %), biological method (18 %) and mechanical method (17.50 %).
Metarhizium anisopliae demand is more and supply is less in study area. There is a need to increase the production in all the Metarhizium anisopliae production centres to meet the farmers need.
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