作为一种迁徙入侵性害虫,斜纹夜蛾(秋季粘虫,一汽)最近对新入侵地区(尤其是非洲和亚洲)的粮食安全构成了严重威胁。了解其在新入侵地区的迁移(或扩散)模式对于区域预测和管理工作至关重要。通过筛选适当的标记技术进行标记释放再捕获(MRR)实验,可以有效地研究一汽的迁移模式。在这项研究中,我们在自制人工饮食中加入了不同浓度的CalcoOilRedN-1700(一种油溶性标记物),并评估了饲养和标记效果.结果表明,饮食中浓度为0.2%的Calco油红N-1700最适合标记成年FAW。生物指标(例如,发育持续时间,生殖参数,和飞行能力)饲喂这种饮食的FAW与饲喂正常饮食的FAW基本一致,幼虫期15.46天,9.81天的蛹期,蛹质量为278.18毫克,成人寿命为15.41天,卵沉积计数为1503.51.同时,飞行距离,持续时间,速度为24.91公里,7.16h,和3.40公里/小时,分别(12小时系留飞行测试),与控制没有区别。女性和男性表现出独特的标记颜色(红色或粉红色),持续至少5天和9天,分别。本研究为成人一汽开发了一种经济有效的内部标记方法,为进行MRR实验奠定基础。这将有助于明确一汽的迁移行为和路线,为制定有效的虫害防治策略提供科学依据。
As a migratory invasive pest, Spodoptera frugiperda (fall armyworm, FAW) has recently posed a serious threat to food security in newly invaded areas (especially in Africa and Asia). Understanding its migration (or dispersal) patterns in newly invaded areas is crucial for regional forecasting and management efforts. By screening an appropriate marking technique to conduct mark-release-recapture (MRR) experiments, the migration patterns of the FAW can be effectively studied. In this study, we added different concentrations of Calco Oil Red N-1700 (an oil-soluble marker) to a self-made artificial diet and assessed the rearing and marking efficacy. The results indicated that a concentration of 0.2% of Calco Oil Red N-1700 in the diet was optimal for marking adult FAWs. The biological indicators (e.g., developmental duration, reproductive parameters, and flight ability) of FAWs fed this diet were basically consistent with those of FAWs fed a normal diet, with a larval stage of 15.46 days, a pupal stage of 9.81 days, a pupal mass of 278.18 mg, an adult longevity of 15.41 days, and an egg deposition count of 1503.51. Meanwhile, the flight distance, duration, and velocity were 24.91 km, 7.16 h, and 3.40 km/h, respectively (12 h tethered-flight tests), without difference with the control. Females and males exhibited distinctive marking colors (red or pink) that persisted for at least 5 and 9 days, respectively. This study developed an economically effective internal marking method for the adult FAW, laying the foundation for conducting MRR experiments. This will help clarify the migration behavior and routes of the FAW, providing a scientific basis for formulating effective pest management strategies.