性信息素迷向技术防控果园梨小食心虫效果分析

Analysis on the Effect of Sex Pheromone Diversion Technology on Controlling Grapholita molesta in Orchard

为推广示范梨、桃主要害虫——梨小食心虫性信息素迷向技术,于2017—2019年,在天津市蓟州区等区域的桃园、梨园设立性迷向丝示范园空白对照园,开展性信息素迷向技术防治梨小食心虫试验。通过性迷向丝对梨小食心虫的迷向率、桃园保梢效果和蛀果防效3项指标,综合评价此项技术对桃园、梨园梨小食心虫的防控效果。结果表明:性信息素迷向技术对桃园、梨园梨小食心虫的迷向率可达91.42%~99.78%;对桃园5—9月保梢效果可达95.87%~97.99%;对梨园、桃园梨小食心虫的蛀果防效可达86.81%~91.80%,与化学防治园相比,保梢防效增加22.32%~53.59%。综上,本项研究结果证明性信息素迷向技术防治果园梨小食心虫结果可靠,是当前果园梨小食心虫省工、省力的主要生物防控技术。

In order to promote and demonstrate the sex pheromone localization technology of the main pest of pear and peach,the Grapholita molesta,From 2017 to 2019,demonstration orchards and blank control orchards were set up in peach orchard and pear orchards in Jizhou district,Tianjin,and experiments were carried out on the control of G.molesta with sex pheromone tropism technology.The control effect of this technology on G.molesta in peach and pear was evaluated comprehensively through the three indexes of the isotropy rate of sex pheromone on in peach and pear.The experimental results showed that the sex pheromone orientation technique could reach 91.42%-99.78%in peach garden and pear garden.The shoot protection effect of peach orchard from May to September was 95.87%-97.99%.The results showed that the control effect of mothies on G.molesta in pear orchard and peach orchard could reach 86.81%-91.80%.Compared with chemical control orchard,the protection efficiency of shoot increased by 22.32%-53.59%.The results of this study prove that the sex pheromone diversion technology is reliable in the prevention and control of G.molesta in orchard,which is the main biological control technology to save labor and effort.