红花菜蝽象(Eurvdema sp)在我县一年发生三代,以成虫在田边、田埂的杂草处越冬,到翌年3月下旬、4月上旬开始活动为害油菜苗,轻者使幼苗叶萎,重者全株死亡,造成缺株断垅.据统计,今年全县所种植的3万亩油菜中,就有2,850亩被害,为害株率一般达80%左右,最高可达100%,油菜被害后改种其他作物者亦不在少数,别个为害严重者翻种面积占播种面积的75%以上,一般达到9—10%.由于此虫的发生直接影响着我县油菜播种面积的扩大和产量的提高,油菜受害后,一般减产20—30%,严重者竟达50%以上.此外,尚为害萝卜、卡马古等并寄 Crimson reddish stink bug (Eurvdema sp) occurred in our county three generations a year, in order to adult worms in the Tanabe, Tamarisk overwinter, to late March the following year, early April activities rape seedlings, the light seedling leaves According to statistics, of the 3 million mu of rapeseed planted in the county this year, there are 2,850 mu of victims, the damage rate is generally about 80%, up to 100% After the rape was rebuilt other crops are also a few, serious damage to those who turn over acreage accounts for more than 75% of sown area, generally 9-10% .Because of the occurrence of this pest directly affects the expansion of rapeseed sown area in our county And yield increase, the rape victims, the general reduction of 20-30%, even as serious as 50% .In addition, still harmful radish, Kamagu and so on