International Journal of Plant Protection

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Evaluation of Indigenous Technical Knowledge (ITK) against Rice Leaf Folder, Cnaphalocrosis medinalis (Guen.) at Southern Parts of Chhattisgarh, India


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1 Department of Agricultural Entomology, Indira Gandhi Krishi Vishwavidyalaya, Raipur (C.G.), India
     

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Among various factors responsible for low yield, losses due to insect-pests attack are of prime importance. Paddy crop is attacked by more than hundred insect species, of which fifteen are of major economic importance. Among these insect-pests, leaf folder, Cnaphalocrosis medinalis Guen is noticed as regular insect-pest at baster plateau zone. Present studies on evaluation of efficacy of indigenous technology against leaf folder. The results revealed that significantly least infestation (3.16%) with the highest grain yield, gross return and CB ratio of 38.32 q/ha, Rs. 50,199.20 and 2.39, respectively recorded in standard check chemical i.e. chlorpyriphos 20 EC. Among the ITK components, Neem had least leaf infestation (9.52%) with highest grain yield (31.52 q/ha), maximum gross return (Rs. 41,291.20) and maximum CB ratio (2.05).

Keywords

Leaf Folder, ITK, Grain Yield, Gross Return, CB Ratio.
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  • Evaluation of Indigenous Technical Knowledge (ITK) against Rice Leaf Folder, Cnaphalocrosis medinalis (Guen.) at Southern Parts of Chhattisgarh, India

Abstract Views: 254  |  PDF Views: 0

Authors

Chandra Shekhar Netam
Department of Agricultural Entomology, Indira Gandhi Krishi Vishwavidyalaya, Raipur (C.G.), India
A. K. Gupta
Department of Agricultural Entomology, Indira Gandhi Krishi Vishwavidyalaya, Raipur (C.G.), India
Chandramani Sahu
Department of Agricultural Entomology, Indira Gandhi Krishi Vishwavidyalaya, Raipur (C.G.), India

Abstract


Among various factors responsible for low yield, losses due to insect-pests attack are of prime importance. Paddy crop is attacked by more than hundred insect species, of which fifteen are of major economic importance. Among these insect-pests, leaf folder, Cnaphalocrosis medinalis Guen is noticed as regular insect-pest at baster plateau zone. Present studies on evaluation of efficacy of indigenous technology against leaf folder. The results revealed that significantly least infestation (3.16%) with the highest grain yield, gross return and CB ratio of 38.32 q/ha, Rs. 50,199.20 and 2.39, respectively recorded in standard check chemical i.e. chlorpyriphos 20 EC. Among the ITK components, Neem had least leaf infestation (9.52%) with highest grain yield (31.52 q/ha), maximum gross return (Rs. 41,291.20) and maximum CB ratio (2.05).

Keywords


Leaf Folder, ITK, Grain Yield, Gross Return, CB Ratio.

References