International Journal of Advanced Biochemistry Research

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Vol. 8, Issue 2, Part B (2024)

Impact of agrometeorological factors on the population dynamics of fall armyworm, Spodoptera frugiperda (J.E. Smith) in maize

Author(s): Monika Singh, Amit Kumar Singh, Ranjana Bali and Shallu Raina
Abstract: The field experiments for two consecutive years (2021 and 2022) were conducted at Entomology Farm, Sher-e-Kashmir University of Agricultural Sciences and Technology of Jammu (SKUAST-Jammu) to study the population dynamics of fall armyworm (larvae) in maize and the impact of agrometeorological factors on their population build-up. The results of the experiment depicted the commencement of fall armyworm (larvae) from 20th Standard Meteorological Week (SMW) in both the years of study (2021 and 2022). Two peak larval populations were recorded in the 25th SMW and 28th SMW in 2021 and the 26th SMW and 29th SMW in 2022. However, the lowest population was recorded in the 31st SMW in both years of experimentation. The correlation studies revealed that the mean maximum temperature had a non-significant negative correlation with the fall armyworm (larvae) population where a positive and highly significant correlation was recorded with the mean minimum temperature. Mean relative humidity (morning and evening), rainfall, and rainy days had a highly significant positive correlation with the larval population of fall armyworm. However, sunshine hours had a significant negative correlation with the fall armyworm population.
Pages: 124-127  |  205 Views  128 Downloads


International Journal of Advanced Biochemistry Research
How to cite this article:
Monika Singh, Amit Kumar Singh, Ranjana Bali, Shallu Raina. Impact of agrometeorological factors on the population dynamics of fall armyworm, Spodoptera frugiperda (J.E. Smith) in maize. Int J Adv Biochem Res 2024;8(2):124-127. DOI: 10.33545/26174693.2024.v8.i2b.604
International Journal of Advanced Biochemistry Research
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