Scholarlink

<p><i>Tetranychus urticae</i> Koch (Acari: Tetranychidae) is a significant pest for crops. Life history and population growth projection for <i>T. urticae</i> were conducted on apple cultivars Gala and Golden Delicious under controlled conditions of 26 ± 1&#xa0;°C, 70 ± 5% humidity, and a photoperiod of 16:8 (L: D) hours. The 0.025th and 0.975th percentile confidence intervals for <i>T. urticae</i> population parameters and survival rates were determined using the bootstrap resampling technique with 100,000 resamples, and differences were fitted via the paired bootstrap method. The developmental durations and pre-adult survival rates of <i>T. urticae</i> were similar for both cultivars. However, female fecundity was higher on the Gala cultivar, averaging 59.71 eggs per female, compared to 39.01 eggs on Golden Delicious. The Gala cultivar showed the highest values for <i>R</i><sub><i>0</i></sub> (41.80 offspring), <i>r</i> (0.2127&#xa0;day⁻¹), and <i>λ</i> (1.2370&#xa0;day⁻¹), while the Golden Delicious had lower values (23.40 offspring, 0.1690&#xa0;day⁻¹, and 1.1841&#xa0;day⁻¹, respectively). This indicates that <i>T. urticae</i> has better fitness on the Gala cultivar than on Golden Delicious. Projection models for ten <i>T. urticae</i> eggs over 60 days indicate potential population increases to 174 on Gala and 66 on Golden Delicious without control measures. However, under controlled conditions, populations remained below 20 individuals on both cultivars. Integrating life table data with the age-stage structure of both sexes reveals optimal timings for population management. Future studies will improve the understanding of <i>T. urticae</i> interactions with host plants and abiotic factors, leading to more accurate conclusions.</p>

错误：搜索内容不能为空，请输入英文关键词
错误：关键词超出字数限制，请精简
高级检索

Comparative study of the fitness of Tetranychus urticae Koch (Acari: Tetranychidae) on two Apple cultivars and timing control using the age-stage two-sex life table analysis

  • 期刊论文

  • 发表日期：

    2025年10月20日

查看全文
  • Said Ouassat,
  • Latifa Allam

摘要

Tetranychus urticae Koch (Acari: Tetranychidae) is a significant pest for crops. Life history and population growth projection for T. urticae were conducted on apple cultivars Gala and Golden Delicious under controlled conditions of 26 ± 1 °C, 70 ± 5% humidity, and a photoperiod of 16:8 (L: D) hours. The 0.025th and 0.975th percentile confidence intervals for T. urticae population parameters and survival rates were determined using the bootstrap resampling technique with 100,000 resamples, and differences were fitted via the paired bootstrap method. The developmental durations and pre-adult survival rates of T. urticae were similar for both cultivars. However, female fecundity was higher on the Gala cultivar, averaging 59.71 eggs per female, compared to 39.01 eggs on Golden Delicious. The Gala cultivar showed the highest values for R0 (41.80 offspring), r (0.2127 day⁻¹), and λ (1.2370 day⁻¹), while the Golden Delicious had lower values (23.40 offspring, 0.1690 day⁻¹, and 1.1841 day⁻¹, respectively). This indicates that T. urticae has better fitness on the Gala cultivar than on Golden Delicious. Projection models for ten T. urticae eggs over 60 days indicate potential population increases to 174 on Gala and 66 on Golden Delicious without control measures. However, under controlled conditions, populations remained below 20 individuals on both cultivars. Integrating life table data with the age-stage structure of both sexes reveals optimal timings for population management. Future studies will improve the understanding of T. urticae interactions with host plants and abiotic factors, leading to more accurate conclusions.