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Journal of Entomology and Zoology Studies
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ISSN Print: 2349-6800 | ISSN Online: 2320-7078

Journal of Entomology and Zoology Studies

2017, Vol. 5, Issue 6
Field reactions of cowpea genotypes against pod borers in cowpea, Vigna unguiculata L

Naveen AS, Jayalaxmi Narayan Hegde, Shivanna BK, Sharanabasappa and Chaitanya HS

Out of the six genotypes screened for their resistance against spotted pod borer, Maruca vitrata, C-152 proved resistance with lowest mean larval population per five plants (3.21), With respect to the Gram pod borer, Helicoverpa armigera, C-152 proved resistance in recording lowest mean larval population (0.94), followed by IT 38596 (1.50), KBC-2 (1.63), DC-47-1 (1.88), South pearl (2.38) and North border (3.19) which were on par with each other. For African pea moth, Cydia ptychora, C-152 proved resistance in recording lowest mean larval population (1.31), followed by IT 38596 (1.75), KBC-2 (1.75), DC-47-1 (1.94), South pearl (2.25) and North border (2.88) which were on par with each other. In case of blue butterfly, Lampides boeticus, C-152 proved resistance in recording lowest mean larval population (1.05), followed by KBC-2 (1.33), IT 38596 (1.56), DC-47-1 (1.77), South pearl (2.10) and North border (2.39) which were on par with each other. With respect to the pod damage due to borer complex, the least per cent pod damage was noticed in C-152 (14.80) which was on par with KBC-2 (17.38). IT 38596 (18.77) and DC-47-1 (20.32) which were on par with each other. Based on the damage score, the genotypes viz., C-152 (14.80), KBC-2 (17.38) and IT 38596 (18.77) were found to be highly resistant, while DC-47-1 (20.32), South pearl (21.97) and North border (24.25) were categorized as moderately resistant. When the yield data were compared among the genotypes, the genotype C-152 recorded the highest yield of 17.32 q/ha. The genotype KBC-2 registered yield of 15.96 q/ha which was on par with C-152 (17.32 q/ha) and IT 38596 (14.85 q/ha).
Pages : 700-703 | 417 Views | 24 Downloads
How to cite this article:
Naveen AS, Jayalaxmi Narayan Hegde, Shivanna BK, Sharanabasappa, Chaitanya HS. Field reactions of cowpea genotypes against pod borers in cowpea, Vigna unguiculata L. J Entomol Zool Stud 2017;5(6):700-703.
Journal of Entomology and Zoology Studies
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