不同密度迷向丝防治梨小食心虫的效果

Study on the Effect of Different Density Sex Pheromone Silk on the Prevention and Control of Grapholitha molesta

为探明江苏苹果产区果园应用迷向丝防治梨小食心虫的科学高效使用方法,提高使用效果,于2019年设置不同密度迷向丝对苹果园梨小食心虫的防治试验。结果表明,迷向区迷向丝最佳设置密度为60根/666.7 m2,迷向率高达93.87%,防蛀效果84.54%以上。在防控效果相当的情况下,与化学防治共同使用可减少蛀果率,显著降低生产成本和劳动量,保障果业生产安全。

In order to prove the scientific and efficient use of sex pheromone silk to control pear borer in apple orchards in the apple-producing areas of Jiangsu,and to improve the effect of use,the experiment of controlling the density of sex pheromone silk against apple borer in apple orchards was set up in 2019.The results show that the optimal setting density of the chaotic filaments in the chaotic zone is 60 pieces/666.7 m2,the chaotic rate is as high as 93.87%,and the mothproof effect is more than 84.54%.In the case of equivalent prevention and control effects,combined use with chemical control can reduce the rate of fruit decay,significantly reduce production costs and labor,and ensure production safety in the fruit industry.