为害食用菌的害虫有多种多样。由于各种害虫口器构造不同,它们为害寄主留下的痕迹特征也不一样。因此,可通过不同的为害状来鉴别害虫的类群,以便为有针对性防治提供依据。一、钻蛀为害。幼虫在菌柄或菌肉内,以蛀食的方式进行为害。菌内部被蛀成许多弯弯曲曲的隧道,严重时菌柄、菌肉全部被蛀空,留下一层薄皮,里面密布幼虫,外观上可见许多针眼大小的虫孔,菌柄基部的虫口密度大于菌柄上部。造成钻蛀为害的虫种多数是尖眼菌蚊类的幼虫。此外,有些蕈蚊也进行钻蛀为害,但蕈蚊要在料面上结网化蛹,在幼虫旁边的料上往往有许多蛛丝网状物。这是与尖眼菌蚊的主要区别。 Pests harmful to edible mushrooms are varied. Due to the different pest insects structure, they damage the host left trace features are not the same. Therefore, different pests can be used to identify pest populations in order to provide a basis for targeted prevention and treatment. First, boring damage. Larvae in the stipe or bacteria, to the way of eating harmful. Bacteria were moth-eaten into many tortuous tunnels, severe stipe, the bacteria were all eroded, leaving a thin skin, which larvae dense inside, the appearance of many pinhole-like insect holes can be seen at the base of the stigma population density Greater than the upper stipe. Most of the worms that cause boring damage are sharp-eyed mosquito larvae. In addition, some mosquitoes mosquito also bore boring damage, but the mosquitoes to mesh in the material surface pupation, larvae next to the material often have a lot of spider silk mesh. This is the main difference from P. mosquito.