Population dynamics and community characteristics of pests and their natural enemies on Chenopodium quinoa in the Yellow River Delta
The objective of this study was to elucidate the species,population dynamics,and community characteristics of quinoa(Chenopodium quinoa)pests in the Yellow River Delta.To this end,visual survey,net trapping,sticky trap,and pitfall techniques were used to investigate the main pests and natural enemies of quinoa in this area.A total of 52 pests and natural enemies were identified in this study,belonging to two classes,11 orders,and 27 families,including 31 pest species and 21 natural enemy species.The population dynamics and community characteristics of the principal insect pests and natural enemies on quinoa and the factors influencing them were determined.The dominant pest species were Hayhurstia atriplicis,Acyrthosiphon pisum,Frankliniella in tons a,and Thrips tabaci.The dominant natural enemies were Orius minutus,Aphidius gifuensis,Campoletis chlorideae,and Cotesia ruficrus.Using the optimal sorting method,the temporal pattern of the main pest and natural enemy communities of quinoa was divided into three periods.In the first period,the dominant pests were Acyrthosiphon pisum and Hayhurstia atriplicis,and the dominant natural enemies were Orius minutus and Aphidius gifuensis.In the second period,the dominant pests were Thrips tabaci and Frankliniella intonsa,and the dominant natural enemies were Orius minutus,Aphidius giifuensis,and Campoletis chlorideae.In the third period,the dominant pests were Thrips tabaci and Frankliniella intonsa,and the dominant natural enemies were Orius minutus,Campoletis chlorideae,and Cotesia ruficrus.The results of this study provided a scientific theoretical basis for green pest control measures and the safe production of quinoa in the Yellow River Delta.
Yellow River Deltaquinoapestnatural enemypopulation dynamicscommunity characteristics
NETL
NSTL
万方数据
