桃园梨小食心虫性信息素迷向防治效果分析

Analysis on Mating Disruption Control Effects of Grapholitha molesta(Busck) by Using Sex Pheromone in Peach Orchard

2017年在上海市金山区采用梨小食心虫性信息素迷向散发器对露地栽培桃园和大棚栽培桃园进行了梨小食心虫迷向防治试验。结果表明,在露地栽培桃园和大棚栽培桃园内设置梨小食心虫性信息素迷向散发器能够明显干扰成虫的正常交配,使折梢率及蛀果率显著降低。露地栽培桃园中梨小食心虫迷向率为58.0%～97.2%,大棚栽培桃园为63.9%～100.0%。露地栽培桃园折梢防效为70.6%,蛀果防效为86.6%;大棚栽培桃园折梢防效为88.1%,蛀果防效为97.3%。性信息素迷向散发器对大棚栽培桃园中梨小食心虫的防治效果优于露地栽培桃园。

The mating disruption control effects of Grapholitha molesta(Busck)by using sex pheromone in peach orchards of open field cultivation and greenhouse cultivation were studied in Jinshan District of Shanghai Ctiy in 2017.The results showed that the mating of imago was significantly interfered by using dispenser for mating disruption control of Grapholitha molesta(Busck)in peach orchards of open field cultivation and greenhouse cultivation.The rate of damaged shoots and infested fruits decreased significantly.The rate of mating disruption of Grapholitha molesta(Busck)was ranged from 58.0%to 97.2%in open field cultivation,and from 63.9%to 100.0%in greenhouse cultivation.The control effect of damaged shoots and infested fruits in open field cultivation was 70.6%and 86.6%,respectively.The control effect of damaged shoots and infested fruits in greed house cultivation was 88.1%and 97.3%,respectively.The control effect of Grapholitha molesta(Busck)in greenhouse cultivation was higher than that in open field cultivation.