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Chinese Journal Of Biological Control ›› 2019, Vol. 35 ›› Issue (5): 698-703.DOI: 10.16409/j.cnki.2095-039x.2019.05.005

• Biological Control of Spodoptera frugiperda Previous Articles     Next Articles

Predatory Capacity and Behavior of Picromerus lewisi Scott against Spodoptera frugiperda Higher Instar Larve

TANG Yiting1, WANG Mengqing1, CHEN Hongyin1, WANG Yan2, ZHANG Hongmei2, CHEN Fushou2, ZHAO Xueqing2, ZHANG Lisheng1   

  1. 1. Institute of Plant Protection, Chinese Academy of Agricultural Sciences/USDA-ARS Sino-American Biological Control Laboratory, Beijing 100193, China;
    2. Institute of Agricultural Environment & Resource, Yunnan Academy of Agricultural Science, Kunming 650205, China
  • Received:2019-06-10 Online:2019-10-08 Published:2019-10-26

Abstract: In order to investigate the predatory potential of the 5th instar nymphs of Picromerus lewisi against the 6th instar larvae of Spodoptera frugiperda (J. E. Smith), the functional response and predation behavior of P. lewisi was studied in laboratory. The results showed that the predator exhibited Holling II functional response, with the maximum daily predation number, sequence of attacking efficiency, and handling time of 4.7, 1.512 and 0.215 d, respectively. P. lewisi preferred live prey and showed high predatory capacity. When S. frugiperda was at high density, P. lewisi just killed a prey by piercing and quickly turned to attack other preys. This predatory behavior can maximize the predator's potential for controlling population of S. frugiperda.

Key words: Picromerus lewisi, Spodoptera frugiperda, natural enemy, predation, biological control

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