Estimating the Economic Threshold Levels of Spodoptera frugiperda through Larval Damage and Adult Moth Trap Catches in Andhra Pradesh, India

Authors

  • B. L. Manisha Dept. of Entomology Acharya N.G. Ranga Agricultural university, Guntur, Andhra Pradesh (517 502), India https://orcid.org/0000-0001-8686-8377
  • N. C. Venkateswarlu Dept. of Entomology Acharya N.G. Ranga Agricultural university, Guntur, Andhra Pradesh (517 502), India
  • M. S. V. Chalam Dept. of Entomology Acharya N.G. Ranga Agricultural university, Guntur, Andhra Pradesh (517 502), India
  • R. Sarada Jayalakshmi Devi ice Chancellor, Acharya N.G. Ranga Agricultural university, Guntur, Andhra Pradesh (522 034), India
  • B. Raman Dept. of Entomology Acharya N.G. Ranga Agricultural university, Guntur, Andhra Pradesh (517 502), India
  • Murthy Dept. of Statistics and Computer Applications, Acharya N.G. Ranga Agricultural university, Guntur, Andhra Pradesh (517 502), India
  • K. Manjula Dept. of Entomology Acharya N.G. Ranga Agricultural university, Guntur, Andhra Pradesh (517 502), India
  • M. Rajasri Dept. of Entomology Acharya N.G. Ranga Agricultural university, Guntur, Andhra Pradesh (517 502), India
  • K. Sunil Kumar Dept. of Entomology Acharya N.G. Ranga Agricultural university, Guntur, Andhra Pradesh (517 502), India
  • N. Jashwanth Kumar Dept. of Entomology Acharya N.G. Ranga Agricultural university, Guntur, Andhra Pradesh (517 502), India
  • K.Guru Charan Dept. of Statistics and Computer Applications, Acharya N.G. Ranga Agricultural university, Guntur, Andhra Pradesh (517 502), India

DOI:

https://doi.org/10.23910/1.2024.5535a

Keywords:

Cob damage, percent leaf, phermone trap, rayalaseema region

Abstract

The experiment was conducted during kharif (June–September, 2022) in the Rayalseema region of Kurnool, Chittoor, Kadapa and Ananthapuramu districts, Andhra Pradesh, India to determine the percentage of leaf and cob damage caused by Fall armyworm. The roving surveys were carried out throughout the crop’s vegetative (7 to 45 DAS) and reproductive (50 to 70 DAS) stages in the major Maize growing areas. The findings of the roving survey on the incidence of FAW during the kharif (June–September, 2022) showed that, of the districts surveyed, Kurnool (82.62%) and Chittoor (71.20%) recorded the highest percentage of leaf damage, followed by Kadapa (65.14%) and Ananthapuramu (52.82%) during vegetative stage. The districts with the highest percentage of cob damage during the reproductive stage were Chittoor (67.99%) and Kurnool (58.88%), followed by Kadapa (54.21%) and Ananthapuramu (53.21%), Through these surveys the extent of damage in each stage of Maize can be assessed. Using pheromone traps to study population dynamics of FAW is a great way to keep a watch on pest populations which not only improves early detection but also helps to determine the ETL levels of adults as a forewarning signal to the Maize cultivators. The Phermone trap catches during kharif, 2022 showed that at 28 days after planting (V5, V6, and V7 stages of Maize), Chandragiri recorded the highest trap catches for the entire season, with 70.99 moths trap-1 week-1 followed by Narayanavanam at 21 DAS with 73.11 moths trap-1 week-1 which exceeded the ETL level.

Downloads

Download data is not yet available.

Downloads

Published

2024-09-27

How to Cite

1.
B. L. Manisha, Venkateswarlu NC, Chalam MSV, Devi RSJ, Raman B, Murthy, et al. Estimating the Economic Threshold Levels of Spodoptera frugiperda through Larval Damage and Adult Moth Trap Catches in Andhra Pradesh, India. IJBSM [Internet]. 2024 Sep. 27 [cited 2025 Sep. 20];15(Sep, 9):01-10. Available from: https://ojs.pphouse.org/index.php/IJBSM/article/view/5899

Issue

Vol. 15 No. Sep, 9 (2024)

Section

Articles

License

Creative Commons License

This work is licensed under a Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International License.

Authors retain copyright. Articles published are made available as open access articles, distributed under the terms of the Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International License, which permits unrestricted non-commercial use, distribution, and reproduction in any medium, provided the original author and source are credited. Creative Commons License

This journal permits and encourages authors to share their submitted versions (preprints), accepted versions (postprints) and/or published versions (publisher versions) freely under the CC BY-NC-SA 4.0 license while providing bibliographic details that credit, if applicable.