Bio-Efficacy and Phytotoxicity of Chlorantraniliprole 18.5% SC against Diamondback Moth (Plutella xylostella Linn.) in Cabbage

Author: Suvarna Patil, R.B. Hirekurubar, Raghunatha R., Arunkumar B., Aswathanarayana Reddy, Mastiholli A.B., Shantappa T. and Shridhar D.

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Abstract

A field experiment was conducted to evaluate the bio-efficacy of new molecule of insecticide chlorantraniliprole 18.5% SC against Plutella xylostella L. infesting cabbage at Regional Horticultural Research and Extension Centre, Dharwad, Karnataka during 2019-2020. Treatments included of new molecule of chlorantraniliprole 18.5% SC along with two conventional insecticides. Results revealed that all the insecticidal treatments were significantly superior over untreated control. Among the insecticidal treatments, significantly highest per cent larval reduction of P. xylostella over control was recorded in chlorantraniliprole 75 ml/ha (81.91 % with 2.73 larvae/plant), chlorantraniliprole 50 ml/ha (79.99 % with 3.02 larvae/plant) and chlorantraniliprole 25 ml/ha (69.64 % with 4.58 larvae/plant) followed by chlorantraniliprole 18.5% SC (Market standard) 50 ml/ha (77.34 % with 3.42 larvae/plant), Indaxacarb 14.5 % SC 266 ml/ha (71.50 % with 4.30 larvae/plant) and Novaluron 10% EC 750 ml/ha (65.61 % with 5.16 larvae/ plant). The efficacy of insecticides also reflected on marketable yield of cabbage heads. The highest yield of 285.81 q/ha with 51.12 % increase in yield over control was recorded in the treatment of chlorantraniliprole18.5% SC @ 75 ml/ha followed by chlorantraniliprole18.5% SC@ 50 ml /ha with yield of 278.99 q/ha with 47.51% increase in yield over control and Indoxacarb 14.5 % SC 266 ml/ha with yield of 258.46 q/ha with 36.66 % increase in yield over control.

Keywords

Insecticide, cabbage, chlorantraniliprole18.5% SC, Diamondback moth, Plutella xylostella

Conclusion

It is evident from the present investigation that Chlorantraniliprole 18.5% SC @ 50 ml/ha and 75 ml/ha was found best and effective treatment for management of Diamondback moth in cabbage with higher yield (278.99 q/ha and 285.81 q/ha respectively) and highest per cent reduction in population over control (79.99 and 81.91 respectively). These treatments were found at par with each other and with Chlorantraniliprole 18.5% SC (market sample) @ 50 ml/ha and statistically superior than Indoxacarb 14.5% SC @ 266 ml/ha, Chlorantraniliprole 18.5% SC @ 25 ml/ha and Novaluron 10% EC @ 750 ml/ha. Thus, Chlorantraniliprole 18.5% SC @ 50 ml/ha could be recommended for safe use in cabbage for effective control of Diamondback moth (Plutella xylostella) and safer to natural enemies.

References

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How to cite this article

Suvarna Patil, R.B. Hirekurubar, Raghunatha R., Arunkumar B., Aswathanarayana Reddy, Mastiholli A.B., Shantappa T. and Shridhar D. (2023). Bio-Efficacy and Phytotoxicity of Chlorantraniliprole 18.5% SC against Diamondback Moth (Plutella xylostella Linn.) in Cabbage. Biological Forum – An International Journal, 15(5): 1439-1442.