Development, longevity, Fecundity, and Life Table Parameters of Fall Armyworm Spodoptera frugiperda (Smith) in Relation to Crops | ||
| Journal of Plant Protection and Pathology | ||
| Articles in Press, Corrected Proof, Available Online from 14 October 2025 PDF (422.54 K) | ||
| Document Type: Original Article | ||
| DOI: 10.21608/jppp.2025.427747.1387 | ||
| Authors | ||
| Walaa A. Tawfik1; Hala E. Moafy1; Amira A. A. Abdel-Hady2; Marwa M. Ramadan* 2 | ||
| 1Research Institute, Agricultural Research Center, Dokki, Giza-12618, Egypt | ||
| 2Economic Entomology Department, Faculty of Agriculture, Mansoura University | ||
| Abstract | ||
| The fall armyworm (FAW), Spodoptera frugiperda (Smith), is recognized as one of the most destructive invasive pests worldwide, with serious implications for global food production and security. Spodoptera frugiperda rearing at three host plants maize, sweet potato and eggplant under three temperature 25oC, 30oC and fluctuating temperatures to determine its biological characters, the obtained results showed that there were significant effects of temperature, host plant and their interaction (F4=5.86; P<0.001) on total development time (egg-adult) of FAW. The results showed that there were significant differences between temperatures, host plants and their interaction, where are effect on weight of pupa (F2= 52.88; P<0.001, F2= 21.61; P<0.001, and F4=12.76; P<0.001, respectively). The shortest developmental time of FAW was recorded on maize under fluctuating temperatures (18.8 days), confirming maize as the most favorable host for rapid development. Conversely, the lowest recorded longevity was observed on eggplant at 25 °C (7.6 days). Sweet potato may better sustain female longevity, whereas eggplant appears to be the least favorable host overall. Results indicated clear variation with temperature development and reproduction depends strongly on temperature. At 25 °C, the insects have the longest generation time and highest reproductive potential (R₀ and GRR), but slower population growth (lower rₘ and λ). At 30 °C, development is much faster, and the intrinsic growth rate is highest, though reproductive output decreases. Field conditions produced intermediate values, closer to 30 °C. Overall, higher temperatures accelerate development and increase growth rate, but reduce fecundity. | ||
| Keywords | ||
| Spodoptera frugiperda; biological characters; maize; sweet potato; Eggplan | ||
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