Control of Helicoverpa armigera with synthetic insecticides and Their Impacts on Tomato Yield
DOI:
https://doi.org/10.33687/ricosbiol.03.04.0046Keywords:
Helicoverpa armigera , TOMATOES , SYNTHETIC INSECTICIDES, TOMATO YIELDAbstract
The present study was carried out at the Abdul wali khan university mardan during 2024 to compare the efficiency of botanical and synthetic insecticides against Helicoverpa armigera This work therefore, compared the several insecticides used in eradicating Helicoverpa armigera and its effect on the tomato yield and quality. Naturally, we included a no-treatment control group to which we compared the effects of Spinosad, Imidacloprid, Chlorpyrifos, Lambda-cyhalothrin and their combination. The findings show that there is an extensive variation in the efficacy in controlling common pests and percentage of fruit infestation between the treatments.
When it comes to the most effective treatment spinosad proved to be the most effective with mean value of 0.52 larvae per plant in case of HM. This treatment completely eliminated larvae within 7 days and had the least infestation rate on the fruit at 10.00%, with only 11.33 fruits infected on average. On the other hand, results obtained from the combination Imidacloprid + Lambda-cyhalothrin treated plots had a significantly higher level of performance because the average larvae density was 3.52, which equal to 64.40% reduction and an infestation index of 27.07. Chlorpyrifos + Lambda-cyhalothrin also gave good results with a mean larval population of 2.62 and 70.20% larval mortality and 22.25% fruit infestation rate.
Imidacloprid used alone produced a mean larval population of 5.10 ± 0.24 and a percentage reduction of 53.80% while Lambda-cyhalothrin yielded a mean larval population of 4.45 ± 0.02 and a percentage reduction of 59.20%. Chlorpyrifos alone was a moderate control with a mean larval population of 4.47 and a percent reduction of 58.40 with a fruit infestation percent of 15.25 percent. The results indicated that the untreated control treatment had the highest arrested larvae and fruit damage, with 32.25 larvae and 34.66 infested fruits..
Overall, Spinosad emerged as the most effective insecticide for controlling H. armigera, significantly reducing both larval populations and fruit infestation rates. The combined treatments also showed promising results, though they were less effective than Spinosad. These findings highlight the potential of targeted insecticide use in improving tomato yield and quality by managing H. armigera more effectively
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References
1. Abbas, G., Khan, M. I., & Niaz, S. (2015). Efficacy of different insecticides against Helicoverpa armigera (Hubner) in cotton. Journal of Agricultural Research, 53(2), 119-125.
2. Akbar, W., Hussain, M., & Shaukat, M. K. (2014). Comparative efficacy of different insecticides against Helicoverpa armigera (Hubner) on tomato. Pakistan Journal of Entomology, 36(1), 45-52.
3. Dialoke, E. I. (2017). Control of Helicoverpa armigera (Hubner) in tomato using natural and synthetic insecticides. International Journal of Pest Management, 63(3), 190-197.
4. Gerald, M., & Frank, R. (2005). Impact of Helicoverpa armigera infestation on tomato fruit quality and yield. Crop Protection, 24(10), 945-952.
5. Gajete, G. (2004). Management strategies for Helicoverpa armigera in tomato cultivation. Horticultural Science Review, 16(2), 59-67.
6. GOP. (2018). Pakistan Economic Survey 2017-18. Government of Pakistan, Ministry of Finance, Islamabad.
7. Hassan, S. (1992). Effectiveness of natural insecticides in pest management. Journal of Environmental Science, 12(4), 233-241.
8. Inayatullah, C. (2007). Economic losses due to Helicoverpa armigera in tomato production in Pakistan. Agricultural Economics, 39(1), 78-85.
9. Kumar, P., & Sarada, K. (2015). Efficacy of various insecticides in controlling tomato fruit borer, Helicoverpa armigera. Indian Journal of Entomology, 77(2), 156-160.
10. Latif, M., Shaukat, M. K., & Khan, M. I. (1997). Management of tomato fruit borer, Helicoverpa armigera. Pakistan Journal of Biological Sciences, 5(3), 564-569.
11. Mandloi, S. (2013). Nutritional composition of tomatoes and their role in health. Journal of Nutritional Science and Dietetics, 19(4), 245-258.
12. Mustafiz, M., Rahman, M. M., & Haque, M. M. (2015). Effect of neem extract and other natural products against Helicoverpa armigera. Journal of Plant Protection Research, 55(1), 85-91.
13. Natekar, P. K., & Sharma, M. (1987). Pesticide resistance in Helicoverpa armigera and its management. Pesticide Science, 20(5), 323-330.
14. Patel, R., Bhardwaj, S., & Singhal, A. (2016). Control measures for Helicoverpa armigera in tomato cultivation. Journal of Crop Protection, 22(3), 291-299.
15. Rahman, M., Hussain, M., & Sultana, T. (2011). Cost-benefit analysis of different pest management strategies in tomato cultivation. Journal of Economic Entomology, 104(3), 799-806.
16. Rahman, M., Hossain, M., & Khan, N. (2014). Neem Seed Extract as a biopesticide for tomato pests. Asian Journal of Plant Sciences, 13(1), 25-32.
17. Rani, U., Banu, M., & Bhat, J. (2018). Comparative efficacy of Chlorantraniliprole and other insecticides on Helicoverpa armigera. International Journal of Agricultural Science, 18(4), 257-263.
18. Sharma, K. (2002). Economic impact of Helicoverpa armigera on tomato production. International Journal of Pest Management, 48(2), 101-107.
19. Safna, K., Rathi, A., & Kumar, V. (2018). Cost-benefit ratio analysis of Chlorantraniliprole in tomato pest management. Journal of Applied Entomology, 142(7), 715-722.
20. Sreedhar, K. (2019). Effectiveness of Spinosad and other insecticides against Helicoverpa armigera in tomato. Pest Management Science, 75(6), 1620-1628.
21. Usman, M., Ahmed, M., & Rizvi, A. (2012). Comparative efficacy of botanicals and synthetic insecticides for controlling tomato fruit worm. Journal of Agriculture and Food Chemistry, 60(1), 128-136.
22. Wijnands, J. (2001). Global tomato industry and trade. Food and Agriculture Organization of the United Nations
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