<p>Soybean is an important economic crop, widely used in food, feed and energy fields. <i>Tetranychus turkestani</i> (Ugarov &amp; Nikolskii) (Acari: Tetranychidae) is one of the major pests of soybean in Xinjiang, seriously affecting the yield and quality of soybean. To clarify the adaptability of <i>T. turkestani</i> to soybean varieties and provide information for further research and control, this experiment adopted the age-stage, two-sex life table method under indoor constant temperature conditions to analyze the growth, development, and fecundity of <i>T. turkestani</i> on 6 high-yield and main cultivated soybean varieties in Xinjiang (Xindadou 23, Xindadou 8, Xindadou 26, Longken 324, Xinzhendou 1, and Xindadou 25). In general, the generation duration of <i>T. turkestani</i> was the longest on Longken 324 (8.476 ± 0.084 days), and the oviposition period was the longest on Xindadou 25 (20.848 ± 1.034 days). In addition, the fecundity per female (184.745 ± 7.401 eggs) and intrinsic rate of increase (0.370 ± 0.009 days<sup>− 1</sup>) on Xindadou 8 were significantly higher than those on other varieties; the intrinsic rates of increase on Xindadou 25 (0.316 days<sup>− 1</sup>) and Longken 324 (0.323 days<sup>− 1</sup>) were the lowest. Therefore, <i>T. turkestani</i> has the lowest adaptability to Xindadou 25 and Longken 324. It has the highest adaptability to Xinzhendou 1, Xindadou 8 and 23. In years when the occurrence of <i>T. turkestani</i> is predicted to be severe, the planting of these varieties should be reduced to minimize the adverse effects of <i>T. turkestani</i> on soybean yield and quality.</p>

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Evaluation of the adaptability of Tetranychus turkestani (Acari: Tetranychidae) on different soybean varieties

  • Jiayi Wang,
  • Hengbin Zhang,
  • Yufei Song,
  • Weiru Liu,
  • Kai Zeng,
  • Huiqing Wang,
  • Yong Zhan,
  • Jie Su,
  • Jianping Zhang

摘要

Soybean is an important economic crop, widely used in food, feed and energy fields. Tetranychus turkestani (Ugarov & Nikolskii) (Acari: Tetranychidae) is one of the major pests of soybean in Xinjiang, seriously affecting the yield and quality of soybean. To clarify the adaptability of T. turkestani to soybean varieties and provide information for further research and control, this experiment adopted the age-stage, two-sex life table method under indoor constant temperature conditions to analyze the growth, development, and fecundity of T. turkestani on 6 high-yield and main cultivated soybean varieties in Xinjiang (Xindadou 23, Xindadou 8, Xindadou 26, Longken 324, Xinzhendou 1, and Xindadou 25). In general, the generation duration of T. turkestani was the longest on Longken 324 (8.476 ± 0.084 days), and the oviposition period was the longest on Xindadou 25 (20.848 ± 1.034 days). In addition, the fecundity per female (184.745 ± 7.401 eggs) and intrinsic rate of increase (0.370 ± 0.009 days− 1) on Xindadou 8 were significantly higher than those on other varieties; the intrinsic rates of increase on Xindadou 25 (0.316 days− 1) and Longken 324 (0.323 days− 1) were the lowest. Therefore, T. turkestani has the lowest adaptability to Xindadou 25 and Longken 324. It has the highest adaptability to Xinzhendou 1, Xindadou 8 and 23. In years when the occurrence of T. turkestani is predicted to be severe, the planting of these varieties should be reduced to minimize the adverse effects of T. turkestani on soybean yield and quality.