Abstract:
In order to clarify the post-hibernantion, overwintering and spatial distribution pattern of Arboridia kakogawana adult, systematic investigation and analysis were carried out in 2019 using yellow sticky trap combined with local meteorological data. The results showed that A. kakogawana overwintering adults began to move in middle March, and went into overwintering at the end of mid November in the eastern foothills region of Helan Mountain in Ningxia. The post-hibernant of A. kakogawana overwintering adults was positively related to daily average temperature, and left overwintering site and started activity in the field when the average temperature stay above 8.0 ℃ for seven days. The overwintering of A. kakogawana was significantly related to daily average temperature, daily average minimum temperature, and daily average maximum temperature. A. kakogawana overwintering adults entered overwintering state when the daily average temperature and the daily average maximum temperature was of below 4 ℃ and 10 ℃, respectively, Moreover, the daily average minimum temperature was of below about-3 ℃. The population distribution of adults in each generation showed a gradual decrease from the edge row near the forest belt to field in the vineyard.