论文部分内容阅读
桃小食心虫(Carposina niponensi Wals)是果树主要蛀果害虫之一。我国各个枣区,由于该虫危害,造成不同程度的减产,如内黄、邢台、北京等枣区的个别地方虫果率高达80％。新郑枣区,近几年桃小密度上升,直接影响红枣的产量和出口。桃小食心虫,在新郑一年两代,因世代重叠,较难防治。所以开展该项防治研究,对于提高红枣的产量和质量具有重要意义。
Carposina niponensi Wals is one of the major fruit pests in fruit trees. Each jujube area in China, due to the pest damage, resulting in different levels of yield reduction, such as Neihuang, Xingtai, Beijing and other jujube areas in individual places as high as 80% fruit insect. Xinzheng jujube district, peach small density in recent years, a direct impact on the output and export dates. Peach small heart worms, Xinzheng year two generations, due to overlapping generations, more difficult to control. Therefore, to carry out the prevention and control research, to improve the yield and quality of jujube is of great significance.