2012 — 2015年对在干旱春播地区推广的芝麻品种汾芝2号进行病虫害系统观察，并对发生情况进行分析。结果显示，汾芝2号枯萎病呈现“前轻后重”的特点，苗期不发病，花期开始逐步加重。蚜虫呈现“轻-重-轻”的特点，苗期不发生，现蕾期和开花期严重，终花期以后不再发生。斑须蝽和烟盲蝽呈现“轻-重-轻”的特点，苗期不发生，现蕾期和花期加重，终花期后消失。研究发现，降水量多的条件下枯萎病发病严重，干旱条件下蚜虫发生严重，高温、干旱环境下斑须蝽和烟盲蝽发生数量多。

In order to guide the sesame production， and improve the sesame yield， his paper is systematically observation and analysis of the occurrence of diseases and insect pests on Fenzhi 2， which is widely promoted in spring sowing and arid area of northwest. The result shows that Fusarium wilt presented the characteristics of‘light to heavy’， that seedling stage without disease， flowering began to gradually increase. Aphids presented the characteristics of‘light-heavy-light’， that seedling stage did not occurred， budding period and flowering period is serious， the final after flowering stage. Blind spot bugs and smoke bugs presented the characteristics of‘light-heavy-light’， that seedling stage did not occured， budding period and flowering is aggravating， eventually disappeared after flowering. The study find that the occurrence of Fusarium wilt is serious under the condition of rainfall， aphids occur seriously under drought conditions； there are more Dolycoris baccarum and N. tenuis under high temperature and drought environment.

S565.3

国家现代农业芝麻产业技术体系(CARS-15)；山西省农业科学院科技自主创新能力提升工程项目“山西油料作物种质资源创造与利用”(2016zzcx-07)。