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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 5
Evaluation of management practices against bollworms in cotton

Suman Devi and Roshan Lal

The present study was conducted at Chaudhary Charan Singh Haryana University, Hisar, in experimental area of Department of Entomology during the Kharif season of 2016-17. The main aim of the study was to reduce the maximum use of pesticides because these pesticides induce pest resurgence, environmental pollution and toxic residue in food. Efforts were being made to encourage those pest management practices which are eco-friendly for everyone. It was found that spotted bollworm minimum boll damage (10.09 percent damage/ 50 boll/ plot) was in treatment T2 (Spinosad alone) followed by T3 (Spinosad alternated with Nimbecidine) i.e. 10.13%, T1 (Nimbecidine) i.e. 10.14, T6 (Intercrop alternated with Trichogramma release and nimbecidine) i.e. 12.24%, T4 (Trichogramma release) i.e. 13.33%, T5 (Intercrop) i.e. 14.81% and maximum was found in untreated check i.e. 15.62%. All the treatments were significantly different as compared to T7 except treatment T5. Treatments T1, T2 and T3 were found statistically at par from each other while significantly different from T4, T5 and T6. Similarly T4 and T5 were statistically at par with each other. In case of pink bollworm, T2 (10.53 percent/50 bolls/plot) was found as the most effective practice as compared to untreated check. However T1 (11.87 percent/50 bolls/plot) and T3 (11.47 percent/50 bolls/plot) were found statistically at par with T2. T4 (15.60 percent/50 bolls/plot), T5 (17.33 percent/50 bolls/plot) and T6 (16.53 percent/50 bolls/plot) were found statistically at par with each other. Among all treatments chemical was best followed by botanical, botanical + chemical, intercrop + trichogramma + botanical, biological control and alone intercrop.
Pages : 879-881 | 539 Views | 37 Downloads
How to cite this article:
Suman Devi, Roshan Lal. Evaluation of management practices against bollworms in cotton. J Entomol Zool Stud 2017;5(5):879-881.
Journal of Entomology and Zoology Studies
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