Management of false wire worm, Gonocephalum beetle (Tenebrionidae: coleoptera) in chickpea raised under residual moisture conditions
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Abstract
False wire worm, Gonocephalum indicum, incidence was observed for the first time in severe form in Rabi 2008-09 on chickpea, confined to saline tracts of Vidarbha (MS). Gonocephalum adults inflicts injury near collar region of chickpea resulting in collapsing and drying of plants translating into re-sowing of crop due to poor plant
stand. Field study revealed 5.8 – 32.3% damaged plants with lowest damage in Module 9 (Seed treatment with clothianidin 2 gm/kg seed + spaying of chlorpyriphos 2 ml/liter water 20 days after crop emergence), Module 10 (Application of phorate granules 10 kg/ha at sowing + spraying of chlorpyriphos 2 ml/liter water 20 days after crop emergence) and Module 11(Seed treatment with clothianidin 2 gm/kg seed + application of clothianidin granules 200 gm/ha 20 days after crop emergence) with 5.8, 6.2 and 8.7% affected plants. The % drying of plants due to injury was in the range of 4.3 – 21.6 % with lowest in Module 11, Module 10 and Module 9 with 4.3, 6.0 and 6.2 % drying of plants, respectively. Superiority of Module 9 (20.4 q/ha) and Module 11 (19.7 q/ha) was evident in yield, whereas, lowest yield was observed in control plot (13.2 q/ha). Module 9 and Module 11 registered higher net returns of Rs. 13887 and Rs. 9948 per ha, respectively, whereas, Module 9 and Module 10 had highest ICBR of 1: 6.0 indicating the suitability of modules in terms of bioefficacy and cost effectiveness for the management of Gonocephalum in problematic area.
Article Details
Article Details
Chickpea, False wireworm, Gonocephalum, Modules for management
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