柑橘木虱成虫繁殖行为前期及活动规律研究

Prophase of reproductive behavior and activity rhythm in adults of Diaphorina citri(Kuwayama)

【目的】明确柑橘木虱[Diaphorina citri(Kuwayama)]雌雄成虫交配前期和雌虫产卵前期的时长及成虫交配、产卵和羽化的昼夜节律,为探索更经济、有效和环保的柑橘木虱防控措施和性诱防控技术提供参考。【方法】采用活体九里香幼苗和成株为试验材料,以自制塑料杯及养虫笼为试验载具,在室内控制环境条件及室外自然状态下对柑橘木虱成虫的繁殖行为进行观察,记录柑橘木虱成虫繁殖行为前期及繁殖行为昼夜节律数据。【结果】柑橘木虱雌雄成虫的交配前期分别为10.64±2.25和9.84±1.79 d;雌虫的产卵前期为12.58±2.90 d。成虫交配、产卵和羽化活动主要在2:00—21:00进行,其活动高峰期分别为9:00—10:00、11:00—12:00和9:00—10:00。【结论】柑橘木虱雌雄成虫交配、雌虫产卵和若虫羽化集中在白昼进行,雌雄成虫交配前期和成虫羽化日节律存在两性差异现象。可根据柑橘木虱成虫繁殖行为日节律的特点对其进行防治及预测预报。

【Objective】To determine length of time of the pre-mating,pre-oviposition between male and female adults of Diaphorina citri(Kuwayama),and obtain the data of the mating and oviposition circadian daily rhythm of male and female adults,and data of eclosion circadian daily rhythm of nymph,so as to provide reference for economical,effective and green controlling of D. citri population as well as control technique by sex attractants.【Method】Murraya jasminorage seedlings and adult plants were used as materials,and self-made plastic cups and insect cages were as carriers.The data of pre-reproductive behavior and the circadian rhythm of reproductive behavior of D. citri adults were obtained by observing the reproductive behavior of D. citri adults under indoor control environment condition and outdoor natural conditions.【Result】The pre-mating periods of male and female adults were 10.64±2.25 and 9.84±1.79 d respectively,and the pre-oviposition of female was 12.58±2.90 d. Mating,oviposition and eclosion of adults were mainly carried out from 2:00 to 21:00,and their peak periods were 9:00 to 10:00,11:00 to 12:00 and 9:00 to 10:00,respectively.【Conclusion】The mating between male and female adults and oviposition of female adults and nymph eclosion are concentrated in the daytime, and the daily rhythm of pre-mating and eclosion is different between sexes. The control and forcast can be conducted based on the daily rhythm of D. citri reproductive behaviors.