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为研究可为郑州地区防治桃园梨小食心虫的科学方法,中国农业科学院郑州果树研究所于日前通过利用性信息素诱芯制作的不同诱捕器诱捕郑州桃园的梨小成虫,研究了其发生动态、危害特点、对诱捕器的选择性及诱捕器的田间应用效果。结果表明,梨小食心虫在郑州地区包括越冬代在内一年发生6代,其中3、4世代种群数量最为庞大,第1、2世代间界限明显,后面4个世代存在明显世代交替;梨小以幼虫危
In order to study a scientific method that can prevent and control peach worm pests in Taoyuan, Zhengzhou, China Institute of Fruit Research, Chinese Academy of Agricultural Sciences, recently traced young pears of Pear in Taoyuan, Zhengzhou by using different traps made by using sex pheromone. The characteristics of harm, the selectivity of traps and the field application effect of traps. The results showed that there were six generations of pest moth in Zhengzhou area, including the overwintering generation in Zhengzhou area. Among them, the population of the third and fourth generations was the largest, the boundaries between the first and second generations were obvious, and the next four generations had obviously generations alternation; Larvae dangerous