Evaluation of different bio Pesticides against Mango Hoppers in Eastern Uttar Pradesh

Author: Aryan Arya, Ritesh Kumar, Pawan Kumar, Saroj Chauhan and Ishtiyaq Ahad

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Abstract

The management of mango hopper was investigated using chemical pesticides, entomopathogens, and botanicals under field circumstances over the period of 2022-2023 at Vindhyavasini Park (Mango Orchard) located in Gorakhpur University, Gorakhpur. The experimental findings revealed that the pesticide treatment involving imidacloprid 17.8 SL at a concentration of 0.007% exhibited superior efficacy compared to all other pesticide treatments. This was evident from the highest observed mortality rates of the hopper on days 1, 3, 7, and 15 after spraying during the first, second, and third applications. The mean mortality percentages for these applications were 89.42%, 93.92%, and 95.92%, respectively. The next most effective treatment, NSKE 5%, demonstrated a mean mortality of 77.58%, 73.67%, and 78.50% for the corresponding applications. The mortality percentage in the botanical treatment using NSKE (Neem Seed Kernel Extract) was seen to be high, with values of 77.58%, 73.67%, and 78.50% recorded during the first, second, and third spray applications, respectively. The efficacy of the entomopathogenic fungus Lecanicillium lecanii 1.15%WP in managing the mango hopper was seen to be superior. The mean mortality rates 71.00%, 68.25%, and 70.75% were recorded during the first, second, and third rounds of spray treatment, respectively, under field condition.

Keywords

Entomopathogens, Mango hopper, Bio-pesticides, NSKE and Lecanicillium lecanii

Conclusion

The insecticide efficacy study in 2022-23 displayed that the first spray, second spray and third spray overall per cent reduction of the mango hopper was more in imidacloprid (88.90%), (88.55%) and (87.40%) and followed by NSKE (87.25%), (85.40%) and (84.61%), Lecanicillium lecanii (86.02%), (84.24%) and (82.92%). The least was recorded in neem leaf extract (81.01%), (76.88%) and (75.38%) followed by neem oil (81.88%), (77.75%) and (76.80%). Mortality of hopper per cent high in first spray, followed by second spray. Over all treatments in superior treatment was imidacloprid followed by NSKE and Lecanicillium lecanii.

References

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How to cite this article

Aryan Arya, Ritesh Kumar, Pawan Kumar, Saroj Chauhan and Ishtiyaq Ahad (2023). Evaluation of different bio Pesticides Against Mango Hoppers in Eastern Uttar Pradesh. Biological Forum – An International Journal, 15(10): 408-414.