Fujian Key Laboratory for Monitoring and Integrated Management of Crop Pests, Institute of Plant Protection, Fujian Academy of Agricultural Sciences, Fuzhou, China.
Fuzhou Scientific Observing and Experimental Station of Crop Pests of Ministry of Agriculture and Rural Affairs, Fujian, China.
Environ Entomol. 2021 Dec 17;50(6):1455-1465. doi: 10.1093/ee/nvab084.
The Hawaiian flower thrips, Thrips hawaiiensis (Morgan), a common flower-inhabiting thrip, is now a potential pest globally. Effective control of T. hawaiiensis requires information about the effects of temperature on its ontogeny and population growth. In this study, the life history characteristics and demography of T. hawaiiensis were defined at eight temperatures (9-35°C). Additionally, the thermal constant and temperature threshold were estimated by regression analysis. The developmental duration and longevity of T. hawaiiensis decreased with an increase in temperature between 16°C and 32°C; females survived for longer than males at all temperatures. The lower temperature threshold and thermal constant of preadult T. hawaiiensis were 10.5°C and 132.5 degree-days, respectively. The oviposition days of the females gradually decreased from 16°C to 32°C, and net maternity was higher at 20°C than at 16°C, even though the same number of eggs were laid at both temperatures. The mean longevities of the populations were greatest at 20°C; the life expectancy and reproductive value decreased with temperature. The intrinsic rate of increase and finite rate of increase were significantly highest at 20°C, 25°C, and 30°C. Population growth was triggered at 12.3°C, and reached a peak at approximately 27°C when it proliferated to the largest population size. Therefore, the results suggest that although the population of T. hawaiiensis starts to grow at lower temperatures, it adapts to a wide range of temperatures, and these findings facilitate prediction of different stages of damage, population size, and seasonal occurrence of T. hawaiiensis.
夏威夷花蓟马，Thrips hawaiiensis（Morgan），一种常见的花蓟马，现在是全球潜在的害虫。有效控制 T. hawaiiensis 需要了解温度对其个体发育和种群增长的影响。在这项研究中，在八个温度（9-35°C）下定义了 T. hawaiiensis 的生活史特征和人口动态。此外，通过回归分析估计了热常数和温度阈值。T. hawaiiensis 的发育持续时间和寿命随着 16°C 至 32°C 之间温度的升高而降低；在所有温度下，雌性的存活时间都比雄性长。T. hawaiiensis 幼体的低温阈值和热常数分别为 10.5°C 和 132.5 度-天。雌虫的产卵天数从 16°C 逐渐减少到 32°C，20°C 时的净生殖力高于 16°C，尽管在这两个温度下产卵数量相同。种群的平均寿命在 20°C 时最长；预期寿命和生殖价值随温度降低而降低。内禀增长率和有限增长率在 20°C、25°C 和 30°C 时显著最高。种群在 12.3°C 时开始增长，当繁殖到最大种群规模时，在大约 27°C 时达到峰值。因此，研究结果表明，尽管 T. hawaiiensis 种群在较低温度下开始生长，但它适应了广泛的温度范围，这些发现有助于预测 T. hawaiiensis 的不同损伤阶段、种群规模和季节性发生。
