6月中下旬,我们到一些乡镇、村开展农业技术服务时,看到今年大豆面积有所回升,多数农户的大豆长势不错,但也见到有些农户田间的大豆叶片出现大小不同的孔洞,有的叶片被害虫蚕食了一半,有的甚至吃得只剩叶脉,这明显地影响大豆叶片制造养分的功能,进而导致减产。从田间抽样检查的为害症状来看,食叶的大豆害虫主要有如下四种。 In late-June, when we went to some towns and villages to carry out agricultural technical services, we saw that the soybean area rebounded this year. Most of the peasants enjoyed good soybean growth, but some peasants also saw holes of different sizes in the leaves of the soybean fields. Of the leaves were eaten by pests in half, and some even eat veins only, which significantly affect the production of soybean leaf nutrients function, which led to reduced production. From the field sampling damage symptoms, leafy soybean pests mainly have the following four.