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一九七九年麦蚜、黄条花叶病在我县普遍大发生危害了农业生产发展。在调查研究麦蚜活动的基础上,进行了治蚜防病工作。我们于10月10日冬麦分蘖期田间调查百株麦蚜量达1.8头,高者有2.5头,春季3月冬麦返青期为4.3头。据田间虫口密度情况,冬、春季曾两次进行药物防治,起到一定效果。在喷药防治同时,结合中耕除草,增施肥料加强田间管理,大大降低了危害程度。控制黄条花叶病的发展蔓延,我们主要的做法是:
In 1978, wheat aphids and yellow leaf mosaic disease were generally harmed in the development of agricultural production in our county. On the basis of investigating the activity of wheat aphid, aphid control disease prevention work was carried out. We surveyed 10 wheat aphids at the tillering stage of winter wheat on October 10 to a maximum of 1.8 heads, 2.5 heads high and 4.3 winter heads in the spring March. According to the density of insect population in the field, winter and spring have twice conducted drug control, which has played a certain effect. In the spray prevention and control at the same time, with cultivating weeds, fertilizers to enhance field management, greatly reducing the degree of harm. Control of the development of yellow mosaic disease spread, our main approach is: