CHINESE JOURNAL OF OIL CROP SCIENCES ›› 2020, Vol. 42 ›› Issue (3): 493-.doi: 10.19802/j.issn.1007-9084.2019091

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Dynamics of insect community diversity and main pests and natural enemies in Qingdao peanut field


  1. 1. Shandong Peanut Research Institute, Qingdao 266100, China; 2. Hainan Provincial Plant Protection Station,Haikou 571199, China; 3. Weihai Ziguang Experimental School, Weihai 264400, China
  • Online:2020-06-28 Published:2020-06-05


Peanut production was decreased obviously due to peanut pests in Qingdao peanut field. Insect com⁃munity diversity, main pests and their natural enemies were studied in Qingdao.The results showed that insect com⁃ munity structure is stable and natural enemy species is relatively rich. The main pests in peanut were Aphis craccivo⁃ra, Frankliniella occidentalis, Stompteryx subsecivella, Spodoptera litura and there were 48 kind of natural enemies including Leis axyridi, Propylea japonica, Eupeodes corollae, Orius laevigatus and Apanteles derogatae Watanabe.The dynamic results of these four pests and their natural enemies in three years showed that there was a significant correlation between Aphis craccivora and their natural enemies. The natural enemies of Frankliniella occidentalis had lower control and natural enemies had some control effect on Stompteryx subsecivella. The result provided a theo⁃ retical basis for field pest control.

Key words: peanut, community dirersity, main pests, natural enemy, dynamics

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