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. 2024 Jul 1;14(1):15047.
doi: 10.1038/s41598-024-65241-8.

Effect of temperature on the biological parameters of pink bollworm, Pectinophora gossypiella Saunders (Lepidoptera: Gelechiidae)

Madhu Tadagavadi Nagaraju  1   2 , Kamanur Murali Mohan  3 , Manikyanahalli Chandrashekara Keerthi  4 , Tenguri Prabhulinga  5 , Shivaji Thube  5 , Vivek Shah  5 , Hosam O Elansary  6 , Ihab Mohamed Mousa  7 , Mohamed A El-Sheikh  8
Affiliations

Effect of temperature on the biological parameters of pink bollworm, Pectinophora gossypiella Saunders (Lepidoptera: Gelechiidae)

Madhu Tadagavadi Nagaraju et al. Sci Rep. .

Erratum in

Abstract

Pink bollworm (PBW) Pectinophora gossypiella is an important pest cotton worldwide. There are multiple factors which determines the occurrence and distribution of P. gossypiella across different cotton growing regions of the world, and one such key factor is 'temperature'. The aim was to analyze the life history traits of PBW across varying temperature conditions. We systematically explored the biological and demographic parameters of P. gossypiella at five distinct temperatures; 20, 25, 30, 35 and 40 ± 1 °C maintaining a photoperiod of LD 16:8 h. The results revealed that the total developmental period of PBW shortens with rising temperatures, and the highest larval survival rates were observed between 30 °C and 35 °C, reaching 86.66% and 80.67%, respectively. Moreover, significant impacts were observed as the pupal weight, percent mating success, and fecundity exhibited higher values at 30 °C and 35 °C. Conversely, percent egg hatching, larval survival, and adult emergence were notably lower at 20 °C and 40 °C, respectively. Adult longevity decreased with rising temperatures, with females outliving males across all treatments. Notably, thermal stress had a persistent effect on the F1 generation, significantly affecting immature stages (egg and larvae), while its impact on reproductive potential was minimal. These findings offer valuable insights for predicting the population dynamics of P. gossypiella at the field level and developing climate-resilient management strategies in cotton.

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Conflict of interest statement

The authors declare no competing interests.

Figures

Figure 1
Figure 1
The percent egg hatchability, larval survival and adult emergence of P. gossypiella at five different temperature.
Figure 2
Figure 2
Male and female pupal weight of P. gossypiella at five different temperature.
Figure 3
Figure 3
Age-stage-specific survival rate (Sxj) of each developmental stage of P. gossypiella at different temperature.
Figure 4
Figure 4
Age-stage life expectancy (exj) of each developmental stage of P. gossypiella at five different temperature.
Figure 5
Figure 5
The age-specific survival rate (lx), female age-specific fecundity (fx), age-specific fecundity (mx), and age-specific maternity (lx.mx) of P. gossypiella at different temperature.
Figure 6
Figure 6
Age-stage reproductive value (Vxj) of P. gossypiella at five different temperature.
Figure 7
Figure 7
Reproductive value (Vx) of P. gossypiella at five different temperature.
See this image and copyright information in PMC

References

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