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<p>The phytoseiid mite <i>Neoseiulus cucumeris</i> (Oudemans) is recognized as one of the most effective predatory mites and is widely used in the commercial control of various greenhouse pests. In the present study, the influence of four different pollens, musk willow (<i>Salix aegyptica</i> L.), sunflower (<i>Helianthus annuus</i> L.), cherry (<i>Prunus cerasus</i> L.), and pear (<i>Pyrus boissieriana</i> L.) on the biological and reproductive performance of <i>N. cucumeris</i> was evaluated under controlled laboratory conditions (25 ± 2&#xa0;°C, 60 ± 5% RH, and 16:8&#xa0;h L: D photoperiod) using the island method. The findings demonstrated that the shortest and longest preadult developmental periods were recorded on sunflower (8.84 days) and cherry pollen (11.54 days), respectively. Male and female longevity was also significantly higher on sunflower pollen (49.54 and 37.17 days, respectively). Fecundity of females fed on sunflower, musk willow, pear, and cherry pollens averaged 35.42, 31.76, 22.70, and 21.06 eggs/female, respectively. The highest demographic parameters, including net reproductive rate (<i>R</i><sub><i>0</i></sub> = 15.36), gross reproductive rate (<i>GRR</i> = 24.26), finite rate of increase (<i>λ</i> = 1.1411), intrinsic rate of increase (<i>r</i> = 0.1319), and mean generation time (<i>T</i> = 20.70 days), were obtained with sunflower pollen, whereas the lowest values were associated with cherry pollen. Overall, the results suggest that sunflower pollen is a superior dietary resource for <i>N. cucumeris</i>. Moreover, given that rearing this predator up to the 10th generation on sunflower pollen did not adversely affect its biological performance although predation rates declined in generations G0 and G20 this alternative food source can be recommended for the long-term mass rearing of <i>N. cucumeris</i>.</p>

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The effects of four pollen diets on the life table parameters of Neoseiulus cucumeris Oudemans (Acari: Mesostigmata: Phytoseiidae)

  • 期刊论文

  • 发表日期：

    2025年12月10日

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  • Elena Hosseini,
  • Shahram Aramideh,
  • Oruj Valizadegan,
  • Abbas Hosseinzadeh

摘要

The phytoseiid mite Neoseiulus cucumeris (Oudemans) is recognized as one of the most effective predatory mites and is widely used in the commercial control of various greenhouse pests. In the present study, the influence of four different pollens, musk willow (Salix aegyptica L.), sunflower (Helianthus annuus L.), cherry (Prunus cerasus L.), and pear (Pyrus boissieriana L.) on the biological and reproductive performance of N. cucumeris was evaluated under controlled laboratory conditions (25 ± 2 °C, 60 ± 5% RH, and 16:8 h L: D photoperiod) using the island method. The findings demonstrated that the shortest and longest preadult developmental periods were recorded on sunflower (8.84 days) and cherry pollen (11.54 days), respectively. Male and female longevity was also significantly higher on sunflower pollen (49.54 and 37.17 days, respectively). Fecundity of females fed on sunflower, musk willow, pear, and cherry pollens averaged 35.42, 31.76, 22.70, and 21.06 eggs/female, respectively. The highest demographic parameters, including net reproductive rate (R0 = 15.36), gross reproductive rate (GRR = 24.26), finite rate of increase (λ = 1.1411), intrinsic rate of increase (r = 0.1319), and mean generation time (T = 20.70 days), were obtained with sunflower pollen, whereas the lowest values were associated with cherry pollen. Overall, the results suggest that sunflower pollen is a superior dietary resource for N. cucumeris. Moreover, given that rearing this predator up to the 10th generation on sunflower pollen did not adversely affect its biological performance although predation rates declined in generations G0 and G20 this alternative food source can be recommended for the long-term mass rearing of N. cucumeris.