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Relative Efficacy, Helicoverpa armigera (Hubner), Tomato.


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1 Department of Entomology, N.M. College of Agriculture, Navsari Agricultural University, Navsari (Gujarat), India
     

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Field experiment conducted on relative efficacy of nine different insecticides against H. armigera (Hubner) in tomato during year 2012-13 revealed that all the nine insecticides were significantly superior to untreated control in reducing H. armigera infestation. However, flubendiamide 0.004 per cent recorded minimum larval population (0.43 larva/plant) and 10.09 per cent fruit damage on weight basis than the remaining treatments which was identical with chlorantraniliprole 0.0055 per cent (0.58 larva/plant and 10.62 % fruit damage) and spinosad 0.0068 per cent (0.68 larva/plant and 11.34 % fruit damage). Higher marketable yield recorded from treatments of flubendiamide 0.004 per cent chlorantraniliprole 0.0055 per cent and spinosad 0.0068 per cent with 25.21, 24.84 and 22.20 tonnes/ha, respectively.

Keywords

Relative Efficacy, Helicoverpa armigera (Hubner), Tomato.
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  • Relative Efficacy, Helicoverpa armigera (Hubner), Tomato.

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Authors

Archana T. Ambule
Department of Entomology, N.M. College of Agriculture, Navsari Agricultural University, Navsari (Gujarat), India
G. G. Radadia
Department of Entomology, N.M. College of Agriculture, Navsari Agricultural University, Navsari (Gujarat), India
C. U. Shinde
Department of Entomology, N.M. College of Agriculture, Navsari Agricultural University, Navsari (Gujarat), India
Dinesh L. Patil
Department of Entomology, N.M. College of Agriculture, Navsari Agricultural University, Navsari (Gujarat), India

Abstract


Field experiment conducted on relative efficacy of nine different insecticides against H. armigera (Hubner) in tomato during year 2012-13 revealed that all the nine insecticides were significantly superior to untreated control in reducing H. armigera infestation. However, flubendiamide 0.004 per cent recorded minimum larval population (0.43 larva/plant) and 10.09 per cent fruit damage on weight basis than the remaining treatments which was identical with chlorantraniliprole 0.0055 per cent (0.58 larva/plant and 10.62 % fruit damage) and spinosad 0.0068 per cent (0.68 larva/plant and 11.34 % fruit damage). Higher marketable yield recorded from treatments of flubendiamide 0.004 per cent chlorantraniliprole 0.0055 per cent and spinosad 0.0068 per cent with 25.21, 24.84 and 22.20 tonnes/ha, respectively.

Keywords


Relative Efficacy, Helicoverpa armigera (Hubner), Tomato.

References