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Chinese Journal Of Biological Control ›› 2019, Vol. 35 ›› Issue (6): 855-860.DOI: 10.16409/j.cnki.2095-039x.2019.06.004

• RESEARCH REPORTS • Previous Articles     Next Articles

Effects of Two Alternative Prey Species on Development and Fecundity of Serangium japonicum (Coleoptera: Coccinellidae)

DING Xueling1, YAO Fengluan1,2, ZHENG Yu1, LU Xuesong1, HE Yuxian1,2   

  1. 1. Fuzhou Scientific Observing and Experimental Station of Crop Pests of Ministry of Agriculture/Fujian Key Laboratory for Monitoring and Integrated Management of Crop Pests/Institute of Plant Protection, Fujian Academy of Agricultural Sciences, Fuzhou 350013, China;
    2. State Key Laboratory of Ecological Pest Control for Fujian and Taiwan Crops, Fuzhou 350002, China
  • Received:2019-02-19 Online:2019-12-08 Published:2019-12-18

Abstract: Eggs of two alternative prey species Ephestia kuehniella and Corcyra cephalonica were evaluated for effects on development and fecundity of Serangium japonicum (Coleoptera:Coccinellidae), with Bemisia tabaci eggs as the control. Compared with the control, S. japonicum fed C. cephalonica eggs showed lower cumulative survival rate (17.16%), longer developmental time and shorter lifespan. S. japonicum fed E. kuehniella eggs showed no significant difference in cumulative survival rate from the control, but had a longer lifespan. The study also found that feeding different foods during larval and adult stages had a great effect on fecundity. When fed E. kuehniella eggs during larval stage and E. kuehniella or C. cephalonica eggs during adult stage, S. japonicum was of signficantly reduced fecundity (64.45 and 53.82 eggs, respectively). There was no significant difference in fecundity of S. japonicum fed E. kuehniella eggs during larval stage and B. tabaci eggs during adult stage (539.10 eggs) compared with the control. When fed on B. tabaci eggs during larval stage and E. kuehniella or C. cephalonica eggs during adult stage, S. japonicum also exhibited signficantly reduced fecundity (59.30 and 71.38 eggs, respectively). Therefore, C. cephalonica eggs are not suitable for S. japonicum, while E. kuehniella eggs are suitable for rearing the larvae.

Key words: Serangium japonicum, Ephestia kuehniella eggs, Corcyra cephalonica eggs, development, fecundity

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