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Chinese Journal of Biological Control ›› 2024, Vol. 40 ›› Issue (6): 1228-1236.DOI: 10.16409/j.cnki.2095-039x.2024.07.005

• RESEARCH REPORTS • Previous Articles    

Effects of Host Plant and Temperature on the Development and Reproduction of Tetranychus truncatus Ehara

Tuerxun·Ahemaiti1, LIU Shuai1,2, Aerziguli·Rouzi1, WANG Bing3, HA Ziyi4, JIA Zunzun1, DING Xinhua1, FU Kaiyun1, LI Kemei2, GUO Wenchao1   

  1. 1. Institute of Plant Protection, Xinjiang Academy of Agricultural Sciences/Key Laboratory of Integrated Management of Crop Pests in Northwest Desert Oasis, Ministry of Agriculture, Urumqi 830091, China;
    2. College of Agronomy, Xinjiang Agricultural University, Urumqi 830052, China;
    3. Institute of Plant Protection, Beijing Academy of Agricultural and Forestry Sciences, Beijing 100089, China;
    4. Agriculture (Animal Husbandry) Development Center, Sangonghe Kazakh Township, Fukang City, Changji Prefecture, Fukang 831500, China
  • Received:2023-12-01 Published:2024-12-12

Abstract: Tetranychus truncatus Ehara has a wide distribution, heterogeneous diet, fast reproduction rate, strong drug resistance and short-term outbreaks, making it an important pest mite that is seriously harmful and difficult to control, and the mite can also be used as a high-quality natural feed for some natural enemies insects. In this study, the effects of different host plants and temperature on the growth, development and reproduction of T. truncatus were studied. The results showed that the generation development of T. truncatus could be completed successfully at 25 ℃, 28 ℃, 31 ℃ and 34 ℃. At 28 ℃, the population doubling time (0.15) and Innate capacity for incease (1.73) were the shortest, the Net reproductive rate (80.26) and the Finite rate of increase (5.64) were higher than the other three temperatures, and the spawning period of P. sericulata was basically consistent with that at 25 ℃. But the spawning yield was higher than 25 ℃ continuously. After feeding on 8 host plants, there were significant differences in the life span of each mite state and the early oviposition stage, and the mite could survive and reproduce on 4 host plants, namely green bean, corn, eggplant and pepper, and the reproductive population showed an increasing trend, in which the number of oviposition was in the order of green beanm, corn, eggplant, pepper, peanut, tomato, cotton. The oviposition period of T. truncatus prunus on eggplant and green bean was basically the same, with the longest oviposition period reaching 28 d. The oviposition period of T. truncatus prunus on pepper was the shortest, with the longest oviposition period only reaching 21 d. In conclusion, the most suitable temperature and host plant for the growth and development of Tetramethylus prunus were 28 ℃ and green bean, respectively. In conclusion, the most suitable temperature and host plant for the growth and development of T. truncatus frustum were 28 ℃ and green bean, respectively. The aim of this study was to screen out the rather host and temperature for indoor breeding of T. truncatus laminae, so as to provide a stable feed source for the breeding of natural enemy insects, and also provide a theoretical basis for the comprehensive management of T. truncatus laminae.

Key words: Tetranychus truncatus, temperature, host plants, developmental, fecundity

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