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大豆豆秆黑潜蝇(Melanag romyza sojae Zeh)属双翅目,潜蝇科,是大豆重要害虫之一,该蝇在本地区范围发生普遍而严重。豆秆黑潜蝇生活习性隐蔽,卵、幼虫、蛹都在植株组织内生活。一年可发生四代,世代交叉重叠,常难于截然划分。大豆品种、生育期不同,直接影响成虫产卵选择性和幼虫发育,以蛹在豆秆内越冬,翌年6月上旬陆续羽化,卵多产于叶片反面近基部主脉两侧叶组织内。幼虫孵化后从叶组织向支脉潜行,然后蛀入主秆
Soybean stalk Melanag romyza sojae Zeh belongs to the order Diptera, Siphonidae and is one of the most important pests of soybean. The flies are common and severe in this area. Stem black-leaf flies living habits hidden, eggs, larvae, pupae all live in the plant tissue. Generations can occur four generations a generation, overlapping generations, often difficult to categorize. Soybean varieties with different growth stages have a direct impact on the oviposition preference and larval development of adults and overwintering in the pussy pups, and gradually emerge in early June of the following year. The eggs are prolific in the leaf tissue on the opposite sides of the main veins. Larvae hatch from the leaf tissue to the branch vein sneak, and then bore into the main stalk