Journal of Northern Agriculture ›› 2023, Vol. 51 ›› Issue (4): 72-79.doi: 10.12190/j.issn.2096-1197.2023.04.09

• Plant protection • Previous Articles     Next Articles

Effects of different hosts on the growth,development and reproduction of Spodoptera frugiperda

WEI Peiyao1, FENG Xiaojun2, XIE Feizhou2, CHEN Zhijie1, WANG Tianshu3, ZHAO Shilei4, HONG Bo1   

  1. 1. Bio-agriculture Institute of Shaanxi,Xi′an 710043,China
    2. Plant Protection Station of Shaanxi,Xi′an 710003,China
    3. Xi′an Agricultural Product Quality and Safety Inspection and Monitoring Center,Xi′an 710000,China
    4. Shangluo Plant Protection and Inspection Station,Shangluo 726000,China
  • Received:2023-06-16 Online:2023-08-20 Published:2023-11-07

Abstract:

【Objective】To clarify the effects of different hosts on the growth,development,and reproduction of Spodoptera frugiperda.【Methods】Using indoor feeding observation methods,the growth,development,and pupation of the 3rd instar larvae of S. frugiperda after feeding on 23 representative crops such as Zea maysTriticum aestivum,and Solanum lycopersicum and 8 common weeds such as Eleusin indicaPortulaca oleracea,and Cyperus rotundus in corn fields were compared and analyzed. 7 plants with higher fitness were selected as the testing hosts to compare the growth,development,and reproduction of the S. frugiperda.【Results】The 3rd instar larvae fed on 16 plants including Triticum aestivumDioscorea esculenta,and Solanum lycopersicum,could complete the growth and development of the larval stage and successfully pupate. Dioscorea esculentaSolanum lycopersicumEleusin indicaHelianthus annuusZiziphus jujube and Actinidia chinensis were the higher fitness hosts for feeding and growth except Zea mays. Among them,the larval stage of the S. frugiperda feeding on Actinidia chinensis leaves was the longest at 19.30 d,while the shortest was feeding on Helianthus annuus leaves at 12.65 d. The larvae feeding on Zea mays leaves had the pupal weight of 170.53 mg,significantly higher than the other six host plants(P<0.05),as well as the shortest pupa stage(9.25 d) and the highest emergence rate(83.33%). The indexes of the S. frugiperda larvae feeding on Dioscorea esculenta leaves were the closest to the ones feeding on Zea mays leaves,with the pupa weight of 146.15 mg,the pupa stage of 11.55 d,and the emergence rate of 58.33%. The egg number per female of S. frugiperda fed on Zea mays leaves was 1 030,significantly higher than that of the other six host plants(P<0.05),followed by the one feeding on Dioscorea esculenta leaves at 892.【Conclusion】S. frugiperda preferred Zea mays for feeding and oviposition,but could achieve population reproduction on host plants such as Dioscorea esculentaSolanum lycopersicumEleusin indicaHelianthus annuusZiziphus jujube and Actinidia chinensis. Risk of diversion to other crops existed when the population density was high.

Key words: Spodoptera frugiperda, Host adaptability, Growth and development, Reproduction

CLC Number: 

  • S433.4