Ge Shishuai, Chu Bo, He Wei, Jiang Shan, Lv Chunyang, Gao Lingyun, Sun Xiaoting, Yang Xianming, Wu Kongming
State Key Laboratory of Ecological Pest Control for Fujian and Taiwan Crops, Fujian Agriculture and Forestry University, Fuzhou 350002, China.
State Key Laboratory for Biology of Plant Diseases and Insect Pests, Institute of Plant Protection, Chinese Academy of Agricultural Sciences, Beijing 100193, China.
Insects. 2022 Dec 19;13(12):1177. doi: 10.3390/insects13121177.
Smith (fall armyworm (FAW)) has invaded many countries in Africa and Asia in recent years, considerably restricting global agricultural production. In this study, we assessed the rearing performance of four artificial diets (D: an artificial FAW diet based on wheat bran and soybean, maize, and yeast powders; D: an artificial diet developed for (Hübner), based on wheat bran and soybean and yeast powders; D: an artificial diet based on soybean powder; D: an artificial diet based on wheat bran) for FAWs. We designed D based on a traditional diet (D) but substituted the wheat bran for soybean and yeast powders. At 25 ± 1 °C, 75% ± 5% RH, and a 16:8 h L:D photoperiod, the larval stage of FAWs fed on D lasted 15.88 d, the pupal stage lasted 9.48 d, the pupal mass was 270.45 mg, the number of eggs deposited was 1364.78, and the mating rate was 89.53%. Most biological indicators of the larvae that were fed D were basically consistent with those of the larvae fed on the traditional diet (D), but the intrinsic rate of increase (), finite rate of increase (), and net reproduction rate () of the D FAWs were lower than those of the D FAWs. The flight capacity (flight distance, duration, and velocity were 19.73 km, 6.91 h, and 2.90 km/h, respectively) of the D FAWs was comparable to that of the FAWs fed a traditional diet and maize leaves. Compared with the three other formulas, the cost of using D was lower by 26.42% on average. These results show that using cheap wheat bran instead of soybean flour and yeast powder as the basic material for an artificial diet for FAWs is feasible, which will substantially reduce rearing costs and promote the development of new controlling measures for FAWs. In addition, this study also has a reference value for reducing the cost of artificial diets for other insects.
近年来，草地贪夜蛾已入侵非洲和亚洲的许多国家，严重限制了全球农业生产。在本研究中，我们评估了四种人工饲料（D：一种基于麦麸、大豆、玉米和酵母粉的草地贪夜蛾人工饲料；D：一种为粉纹夜蛾（Hübner）开发的基于麦麸、大豆和酵母粉的人工饲料；D：一种基于大豆粉的人工饲料；D：一种基于麦麸的人工饲料）对草地贪夜蛾的饲养性能。我们基于传统饲料（D）设计了D，但用大豆和酵母粉替代了麦麸。在25±1°C、75%±5%相对湿度和16:8小时光暗周期条件下，取食D的草地贪夜蛾幼虫期持续15.88天，蛹期持续9.48天，蛹重为270.45毫克，产卵数为1364.78粒，交配率为89.53%。取食D的幼虫的大多数生物学指标与取食传统饲料（D）的幼虫基本一致，但取食D的草地贪夜蛾的内禀增长率（）、周限增长率（）和净增殖率（）低于取食D的草地贪夜蛾。取食D的草地贪夜蛾的飞行能力（飞行距离、持续时间和速度分别为19.73千米、6.91小时和2.90千米/小时）与取食传统饲料和玉米叶的草地贪夜蛾相当。与其他三种配方相比，使用D的成本平均降低了26.42%。这些结果表明，用廉价的麦麸替代大豆粉和酵母粉作为草地贪夜蛾人工饲料的基础原料是可行的，这将大幅降低饲养成本并促进草地贪夜蛾新防治措施的开发。此外，本研究对于降低其他昆虫人工饲料成本也具有参考价值。
