Ecofriendly Management of Rugose Spiralling Whitefly Aleurodicus rugioperculatus Martin Infesting Coconut

Authors

  • M Alagar Coconut Research Station, Tamil Nadu Agricultural University, Aliyarnagar 642101, Tamil Nadu
  • V Sivakumar Coconut Research Station, Tamil Nadu Agricultural University, Aliyarnagar 642101, Tamil Nadu
  • S Praneetha Coconut Research Station, Tamil Nadu Agricultural University, Aliyarnagar 642101, Tamil Nadu
  • Chinnadurai S Coconut Research Station, Tamil Nadu Agricultural University, Aliyarnagar 642101, Tamil Nadu
  • A Josephrajkumar ICAR-Central Plantation Crops Research Institute, Regional Station, Kayamkulam 690533, Kerala
  • H P Maheswarappa ICAR-Central Plantation Crops Research Institute, Kasaragod 671124, Kerala

DOI:

https://doi.org/10.55446/IJE.2021.317

Keywords:

Coconut, Aleurodicus rugioperculatus, seasonal incidence, intensity, infestation grade index, IPM, biological pest suppression, Encarsia guadeloupae, parasitism, ecofriendly IPM

Abstract

Studies were conducted on the incidence, intensity of infestation, infestation grade index and natural enemy complex of rugose spiralling whitefly (RSW) Aleurodicus rugioperculatus Martin infesting coconut palms so as to evolve ecofriendly IPM. RSW incidence was at peak in June 2018 (38.3%), subsequently declined in December 2018 (20.5%), but later attained peak again in March 2019 (47.5%). The pest intensity also showed increasing trend from January 2018 to June 2019. The mean intensity of infestation and infestation grade index were 29.5% and 1.5 (medium), respectively in 2018-2019. The incidence and intensity significantly reduced from 75.5 to 37.7% and 85.7 to 42.9%, respectively on palms treated with ecofriendly IPM practices in 2018-19. Nut yield and net return were also found more in synergy with maximum parasitism (78.5%) by the aphelinid parasitoid Encarsia guadeloupae Viggiani observed on palms treated with ecofriendly IPM practices.

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Published

2022-08-08

How to Cite

Alagar, M. ., Sivakumar, V. ., Praneetha, S. ., S, C. ., Josephrajkumar, A. ., & Maheswarappa, H. P. . (2022). Ecofriendly Management of Rugose Spiralling Whitefly <i>Aleurodicus rugioperculatus</i> Martin Infesting Coconut. Indian Journal of Entomology, 84(3), 562–566. https://doi.org/10.55446/IJE.2021.317

Issue

Volume 84, Issue 3, September 2022

Section

Research Articles
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Europe PMC

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