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Chinese Agricultural Science Bulletin ›› 2022, Vol. 38 ›› Issue (36): 120-125.doi: 10.11924/j.issn.1000-6850.casb2021-0571

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Effects of Temperature on Growth, Development and Survival of Nymphs of Trialeurodes ricini

SONG Yueqin(), YUAN Haozhan, LIU Wentao, SUN Huizhong()   

  1. College of Horticulture and Plant Protection, Henan University of Science & Technology, Luoyang, Henan 471000
  • Received:2021-05-28 Revised:2021-11-04 Online:2022-12-25 Published:2023-01-17

Abstract:

In order to clarify the effect of temperature on the growth, development and survival rate of Trialeurodes ricini nymphs, and provide theoretical reference for future control of T. ricini, an artificial climate chamber was used to measure the growth of T. ricini at 20, 25, 30 and 35℃. The results showed that the egg stage of T. ricini was shortened from 15.4 d at 20℃ to 3.6 d at 35℃. The whole nymph development period was shortened from 53.1 d at 20℃ to 18.7 d at 35℃. 30℃ is the most suitable temperature for the growth and development of T. ricini. The eggs did not hatch at a constant temperature of 40℃. At a constant temperature of 25℃, the mortality of eggs and nymphs were the lowest. At a constant temperature of 30℃, the female ratio tended to increase. All the results show that T. ricini could adapt to high temperature. As future global warming may lead to the expansion of T. ricini damage range, it is urgent to develop more suitable prevention and control measures for T. ricini.

Key words: Trialeurodes ricini, temperature, development, survival, sex ratio