玉米螟的发生与防治玉米螟俗称玉米钻心虫，是为害玉米的主要害虫之一。初孵幼虫先集中在心叶为害，吃去叶肉，并横穿紧裹的卷叶，心叶展开后，呈现半透明不规则白斑和成排圆孔；３龄后分散蛀食雄穗、茎秆、雌德等，使雄穗折断，影响受粉，雌稳发育不全或被破坏，引起霉烂... Occurrence and control of corn borer Corn borer, commonly known as corn borer, is one of the major pests that damage corn. The newly hatched larvae first concentrated in the heart leaf damage, eat the leaves of the meat, and wrapped around the wrapped leaves, the heart leaf expand, showing translucent irregular white spots and rows of round holes; 3 years after dispersal of moth tassel, stem , Estrus, etc., so that the tassel broken, affected by powder, female stunted or damaged, causing mildew ...