东辽县有水田面积１２万亩，占全县粮豆总面积的１１％，水稻总产占粮豆总产的１８．２％。近年来，我县水稻病害时有发生，尤以稻瘟病发生为重．致使个别年份、个别地块竟这颗粒无收的程度。因此，要提高水稻单产，增加总产，做好水稻病虫害，尤其是稻瘟病的防治工作就显得尤 Dongliao County has a paddy field area of ​​120000 acres, accounting for 11% of the county’s total area of ​​grain beans, rice total grain output accounted for 18.2%. In recent years, rice diseases have occurred in our county, especially rice blast occurrence. Resulting in individual years, the actual number of individual pieces of this crop failure. Therefore, if we want to increase the unit yield of rice and increase the total output, it is particularly necessary to prevent and control rice diseases and pests, especially rice blast