CAJ | 학술논문

为防制白刺夜蛾危害固沙植物白刺,保持河西走廊荒漠草原生态平衡,观察白刺夜蛾（Lei-ometopon simyrides Staudinger）害虫生活习性和天敌,观察显示白刺夜蛾在河西走廊荒漠草原上,1年发生3代,以蛹在土中越冬,主要以白刺（Nitraria spp）为食,幼虫期是其主要危害期。在干旱的荒漠草原上,6~8月3个月的平均降雨量超过38 mm,白刺生长茂盛,有利于白刺夜蛾幼虫的生长发育,使害虫数量大爆发,反之虫口密度急剧降低。不难得出最佳防治时间是每年的5月下旬至6月上旬。要充分利用和保护天敌以维持荒漠草原的生态平衡。
위방제백자야아위해고사식물백자,보지하서주랑황막초원생태평형,관찰백자야아（Lei-ometopon simyrides Staudinger）해충생활습성화천활,관찰현시백자야아재하서주랑황막초원상,1년발생3대,이용재토중월동,주요이백자（Nitraria spp）위식,유충기시기주요위해기。재간한적황막초원상,6~8월3개월적평균강우량초과38 mm,백자생장무성,유리우백자야아유충적생장발육,사해충수량대폭발,반지충구밀도급극강저。불난득출최가방치시간시매년적5월하순지6월상순。요충분이용화보호천활이유지황막초원적생태평형。
In order to prevent leiometopon simyrides staudinger from harming sand consolidaton plant nitraria,and keep ecological balance of desert steppe in Hexi corridor,life habit and natural enemy of leiometopon simyrides staudinger were observed.The observation showed that 3 generations were happened each year,pupae were in the earth through the winter,nitraria as major food,the major harm period is the larval stage.In the dry desert steppe,average monthly rainfall exceeded 38 mm from June to August,nitraria grew flourishing,it is good for leiometopon simyrides Staudinger larva to grow up,the amount of pest insects were breathtaking.On the contrary,density of insect quantity reduced sharply.Hence,it is not difficult to conclude that the best control time is from late May to early June.Therefore,it is necessary to fully utilize and protect natural enemy to maintain ecological balance of desert steppe.