Abstract: 【Aim】 An increasing damage of the summer fruit tortrix moth, Adoxophyes orana, has been observed on jujube (Ziziphus jujube) in jujube growing regions of Northern Shaanxi in recent years. This study aims to clarify the developmental duration, fecundity and oviposition substrate selection of this jujube pest, so as to provide a theoretical reference for its prediction and prevention. 【Methods】 The growth, development and reproduction of A. orana feeding on jujube leaves were observed under the conditions of 25±1℃, 70%±5% RH and a photoperiod of 15L∶9D. The effects of supplementary nutrition on the reproduction of A. orana were assessed by measuring the fecundity per female moth when supplemented with different nutrients. The oviposition preference of female adults of A. orana to five substrates, including parchment paper, filter paper, white paper, polyethylene (PE) preservative film and plastic binding film, was investigated by counting the number of accumulated eggs on different substrates. 【Results】 The duration of egg, larval, pupal, and adult stages of A. orana was 7.38±1.22, 16.59±2.16, 7.01±0.79, and 16.65±5.15 d, respectively. The mean generation duration was 33.87±3.64 d. The intrinsic rate of increase (r_m), finite rate of increase (λ) and population doubling time (D_t) were 0.15 d^-1, 1.16 d^-1 and 4.67 d, respectively. The average fecundity of adult was 339.52±129.93 eggs laid per female. The female adults of A. orana oviposit eggs multiple times (6.26±2.09 on average), showing an obvious circadian rhythm (most in 0:00-8:00). The peak oviposition appeared at 3-5 d after emergence. The total fecundity on PE preservative film was significantly higher than that on the other substrates. There was no significant difference in the total fecundity between the female adults fed with sugar solution at different concentrations and those fed with water. 【Conclusion】 A. orana feeding on jujube leaves can accomplish its development and reproduce fertile offspring, and PE preservative film is the suitable inorganic oviposition substrate for its female moths.

Key words: Adoxophyes orana, developmental duration, oviposition, nutrition supply, oviposition preference