Survey the Infestation of Fruit Borer Complex and their Natural Enemies on Tomato in Semi Arid Region of Rajasthan

Author: Neelam Kumari, B.L. Jat, Suresh Choudhary and Heera Kumari

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Abstract

A survey conducted during Kharif 2023 and 2024 across six tehsils of Jaipur district revealed significant spatial and temporal variation in the infestation of tomato pinworm (Tuta absoluta) and fruit borer (Helicoverpa armigera). Chomu and Sanganer consistently emerged as pest hotspots, while Dudu and Kishangarh Renwal recorded low infestation levels. In Chomu, T. absoluta infestation peaked at 23.5 mines and 2.7 larvae per five plants in 2023, and 20.5 mines and 2.4 larvae in 2024, with fruit damage of 18.84% and 15.52%, respectively. H. armigera infestation was highest in Sanganer, with larval counts of 4.3 and 4.1 per five plants, and fruit damage of 35.66% and 31.31% in 2023 and 2024, respectively. Natural enemies such as the mirid bug (Nesidiocoris tenuis) and spiders were observed across all tehsils, with N. tenuis most abundant in Chomu (2.5 per five plants) and spiders in Sanganer (3.8 per five plants)

Keywords

Survey, Tomato, Significant, Consistently

Conclusion

The survey on the incidence of T. absoluta and H. armigera in Jaipur district revealed that the damage of T. absoluta and H. armigera was found throughout the Kharif season and showed that Chomu and Sanganer tehsil consistently emerged as major hotspots for pest incidence, whereas Dudu and Kishangarh Renwal tehsil reported relatively lower levels of infestation

References

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How to cite this article

Neelam Kumari, B.L. Jat, Suresh Choudhary and Heera Kumari (2025). Survey the Infestation of Fruit Borer Complex and their Natural Enemies on Tomato in Semi Arid Region of Rajasthan. Biological Forum, 17(6): 132-135