论文部分内容阅读
在日前召开的山东省农作物病虫发生趋势会商会上,与会专家根据病虫基数、气象条件、作物布局及长势等情况,结合历史资料,对今年上半年全省部分农作物主要病虫发生趋势进行了预报。1、棉花病虫棉花病虫总体呈中等至偏重趋势。主要有棉铃虫、棉盲蝽、棉苗蚜、棉苗病、棉花黄枯萎病等。其中二代棉铃虫大
In a few days ago held in Shandong Province crop pests and diseases will be on the Chamber of Commerce, participating experts based on pests and insect pests, meteorological conditions, crop layout and growth conditions, combined with historical data on the first half of this year, the main crop pests and insects in the province trend Forecast. 1, cotton pests cotton pests generally moderate to partial tendencies. Mainly cotton bollworm, cotton laceworm, cotton seedling aphid, cotton seedling disease, cotton yellow blight and so on. One of the second generation of cotton bollworm