玉米螟在我市一般年份发生二代,个别年份为三代.在心叶末期用撒施颗粒剂的方法,对春玉米基本上可以控制玉米螟的为害,而对半夏(套种)或夏玉米由于施药在卵盛期之前进行,防治效果往往较差,所以对半夏玉米螟的防治亟需研究新的防治方法.我们在1984～1986年用呋喃丹种衣剂包衣玉米 Corn borer occurred in our city in the second year of the general year, the individual years for three generations in the end of the leaf by spreading granules method, the spring corn can basically control the corn borer damage, and Pinellia (interplanting) or summer corn due to Spraying before the egg fertilization period, the control effect is often poor, so the prevention and control of the Pinellia terrides need to study a new method of prevention and control .We 1984-1986 with carbofuran seed coating of corn