【摘要】 本文报道1984—1986年对枣尺蠖和枣壁虱防治指标的研究及应用结果.初步提出,枣尺蠖的防治指标为百股平均幼虫7.5头,枣壁虱的防治指标为叶平均虫量0.5头.研究及生产示范试验证明,枣树开花前(5月中旬)为最佳防治时期;采用主治和兼治相结合,治虫与施肥相结合,辅以夏剪管理的综合防治措施,只在花前喷药防治一次,即能很好地控制枣树的5种主要害虫.更多还原

【Abstract】 Results of the study and application of the index for controlling S. jujuba and E. annaltus were reported. The study was Carried out during 1984-1986 in Henan province. The indexes of 7.5 larvae per hundred jujube thigh for S. jujuba and 0. 5 insect per leaf E. annaltus were suggested. The study and and demonstration experiment indicated that the optimum time for control was before flowering of Chinese jujube( mid May) . Five main insect pests could be well controlled by integrated management combining pestcide spraying once before flowering with fertilizer application and summer pruning.更多还原