In order to investigate the population dynamics of Laodelphax striatellus on the main rice varieties in Panjin,the occurrence of Laodelphax striatellus in three rice varieties in Panjin was investigated for two consecutive years.The results showed that the total occurrence of Laodelphax striatellus in 2022 was significantly higher than that in 2023,and there was no significant difference in the total occurrence of Laodelphax striatellus among the varieties.The population dynamic trend of Laodelphax striatellus was generally consistent among the varieties,but the population of Laodelphax striatellus in September 2023 was lower than that in 2022.
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