Growth development and reproduction of Spodoptera frugiperda reared on an artificial diet.
Objectives: To assess the feasibility of using an artificial diet to rear Spodoptera frugiperda, an important agricultural insect pest that invaded to China in January 2019, for study purposes. Methods: We compared the growth and reproduction of S. frugiperda fed either an artificial diet or corn leaves. Results: The survival of larvae fed on either the artificial diet or corn leaves were 86.33% and 86.00%, respectively, and the durations of the larval periods of larvae raised on these foods were 17.94 d and 18.11 d, respectively. The longevity of male and female adults reared on the artificial diet was 13.92 d and 12.00 d, respectively, compared to 13.83 d and 12.08 d for those reared on corn. The average number of eggs laid by females raised on the artificial diet and those raised on corn leaves was 943.50 and 885.42, respectively. Conclusion: There was no significant difference in the growth, development and reproduction of S. frugiperda raised on an artificial diet compared to those raised on corn leaves. The artificial diet is suitable for mass rearing S. frugiperda for research purposes.