Population Dynamics of Rice Planthopper under Different Management Methods in Liaohe Delta Rice Field
In order to investigate the population dynamics of rice planthopper under different management methods in Liaohe Delta region,the total occurrence and population dynamics trend of rice planthopper were investigated for two consecutive years.The results showed that the total occurrence of rice planthopper was the highest(65.67 individuals for one rice plant)under conventional extensive management(CE),followed by the clean production system of rice-crab fields(RC).The total occurrence of rice planthopper was the lowest(46.80 individuals for one rice plant)in conventional cleaning management(CP).The population dynamic trend of rice planthopper in the three types of paddy fields was generally the same,and there was no significant difference between 2022 and 2023.
NETL
NSTL
万方数据
