3.Behavior *Before the male flower appears,most larvae either bore into the stems of male flowers to break the male flowers,or bore into plant stems above female ears. 在雄穗出现前，幼虫大多蛀入雄穗柄内，造成折雄，或蛀入雌 穗以上节内。™Before the male flower appears, most Before the male flower appears, most larvae either bore into the stems of male larvae either bore into the stems of male flowers to break the male flowers, or bore flowers to break the male flowers, or bore into plant stems above female ears. into plant stems above female ears. 在雄穗出现前，幼虫大多蛀入雄穗柄内，造成折雄，或蛀入雌 穗以上节内。 3. Behavior 3. Behavior