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journal1 ›› 2019, Vol. 35 ›› Issue (2): 180-184.DOI: 10.16409/j.cnki.2095-039x.2019.02.016

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Influence of Temperature on Development and Fecundity of Chelonus pectinophorae Cushman

CONG Shengbo, XU Dong, WANG Jintao, WANG Ling, WU Huaiheng, LI Wenjing, YANG Nina, WAN Peng   

  1. Institute of Plant Protection and Soil Fertilizer, Hubei Academy of Agricultural Sciences/Huazhong Key Laboratory of Crop Integrated Pest Management, Ministry of Agriculture/Hubei Key Laboratory of Crop Disease Insect Pests and Weed Control, Wuhan 430064, China
  • Received:2018-10-09 Online:2019-04-08 Published:2019-04-12

Abstract: The influence of temperature on growth and development of Chelonus pectinophorae Cushman were determined under laboratory conditions. Results indicated that the developmental zero and effective accumulated temperatures of C. pectinophorae was 11.8℃ and 276.1℃ for egg-larval stage, 13.8℃ and 119.9℃ for pupal stage. In the range of 20-36℃, the life parameters such as the egg-larval duration, pupal weight, pupation rate and emergence rate of C. spectinophorae increased and then decreased with temperature increase. It has the shortest larval duration, the heaviest pupal weight, the highest pupation and emergence rate and fertility at 28℃, indicating that the optimum temperature is 28℃. These results are of significance for the mass rearing of C. pectinophorae and biocontrol against pests in the field.

Key words: Chelonus pectinophorae, pink bollworm, temperature, development, reproduction

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