Skip to main content
Log in

Effects of peanut cultivars and neem oil on the feeding preference, growth and mortality of fall armyworm and velvet bean caterpillar (Lepidoptera: Noctuidae)

  • Original Article
  • Published:
Phytoparasitica Aims and scope Submit manuscript

Abstract

The fall armyworm (FAW), Spodoptera frugiperda and the velvet bean caterpillar (VBC), Anticarsia gemmatalis are pests that can cause severe defoliation of peanut plants during any development stage throughout the Americas. This study aimed to evaluate effects of a bioinsecticide, neem oil, and two peanut cultivars on feeding preference, period of development, and mortality of FAW and VBC. Furthermore, wax content was estimated to correlate with peanut resistance. In the laboratory, feeding preference was tested under choice and no-choice assays. First and third instar larvae were released into Petri dishes containing leaves from the cultivars IAC Runner 886 or IAC Caiapó, with or without the application of either 0.15% or 0.30% neem oil. Considering the peanut cultivars, IAC Runner 886 was the least consumed by FAW third-instar larvae, in choice and no-choice tests. Similarly, the cultivar IAC Caiapó was the least consumed by VBC third instar larvae in no-choice test. When neem oil was added to these cultivars, FAW first-instar larvae exhibited feeding deterrence behaviors, whereas third-instar larvae also were deterred by neem oil but in only the free-choice assay. The first instar VBC larvae exhibited feeding deterrence to neem oil in the no-choice assay only. Overall, no larvae subjected to neem oil application completed the larval cycle. This study showed that certain peanut cultivars and neem oil are indeed promising options for managing FAW and VBC and opens the door to further study these options in the field. The relationship between wax content with peanut resistance is discussed.

This is a preview of subscription content, log in via an institution to check access.

Access this article

Price excludes VAT (USA)
Tax calculation will be finalised during checkout.

Instant access to the full article PDF.

Fig. 1

Similar content being viewed by others

Data availability

Available upon request.

Code availability

Not applicable.

References

Download references

Acknowledgements

We thank Conselho Nacional de Desenvolvimento Científico e Tecnológico – CNPq (National Council for Scientific and Technological Development), for granting a PhD scholarship to the first author (140589/2013-9); UPL do Brasil S. A., for supplying with the botanical insecticide Azamax; and Prof. Dr. Marcelo da Costa Ferreira and Dr. Sérgio Tadeu Decaro Júnior, for performing the analysis of angle of contact formed between the water droplet and the surface of leaflets of peanut cultivars.

Funding

This study was supported by Conselho Nacional de Desenvolvimento Científico e Tecnológico - CNPq (140589/2013-9).

Author information

Authors and Affiliations

Authors

Contributions

ALBJ and BHSS conceived and designed research. ENC, BHSS, WIE, RFOM, and ZAR conducted experiments. ENC and WIE analyzed data. ENC wrote the manuscript. All authors read and approved the manuscript.

Corresponding author

Correspondence to Eduardo Neves Costa.

Ethics declarations

Conflict of interest

The authors declare they have no conflict of interest.

Additional information

Publisher’s Note

Springer Nature remains neutral with regard to jurisdictional claims in published maps and institutional affiliations.

Rights and permissions

Reprints and permissions

About this article

Check for updates. Verify currency and authenticity via CrossMark

Cite this article

Costa, E.N., de Souza, B.H.S., Eduardo, W.I. et al. Effects of peanut cultivars and neem oil on the feeding preference, growth and mortality of fall armyworm and velvet bean caterpillar (Lepidoptera: Noctuidae). Phytoparasitica 50, 1059–1073 (2022). https://doi.org/10.1007/s12600-022-00995-3

Download citation

  • Received:

  • Accepted:

  • Published:

  • Issue Date:

  • DOI: https://doi.org/10.1007/s12600-022-00995-3

Keywords

Navigation