摘要
白刺萤叶甲(Di(?)h(?)da r(?)a(?))是内蒙古西部草原植物白刺(Nitraria (?)ca)的生活重要害虫。成虫和幼虫取食其幼芽、嫩叶和叶片,幼虫排出大量粪便污染枝条,严重影响白刺生长发育。该虫一年发生2代,以成虫在白刺根际周围土壤中越冬。越冬代成虫4月下旬开始出土,5月上、中旬为盛期、一代幼虫6月中、下旬大量发生为害,7月上、中旬一代成虫盛发。二代幼虫8月中、下旬大量发生。40％复果乳油、20％速灭杀丁乳油和50％杀虫双水剂对成、幼虫有良好防治效果。5月上旬为越冬代成虫始盛期,6月上、中旬为一代幼虫孵化盛期。目前,对此虫的预报主要是做好田间调查。
Diohabda rybakowi Weisa is the pest seriously destroied Nitraria sibirica Pall. in the steppe of west Inner Monglia. Imago and; arva eat the shoots and leaves. the larva's rejectment pollute the branch of the plant, and badly influnce its growth and development. This pest occurs in two generitions annually. Imago lies dormant under the groumd aroumd the roots. Overwintering imago appears on the ground middle in April. It cones to the reign stage between early and middle in May. The larvae of the first generition occur and destroy numerously between middle and later in June. The imago of the first generition occuts numerously between early and middle in July. The larvae of the second generition occur between middle and later in August. It is clear that 3 pesticides have the best effect for controlling imago and larva, i.e. compound Rogor 40% EC, Decis 20% EC, and Sachunshuang 50% S. The key stage for controlling the pest are between early and middle in June.
出处
《中国草地》
CSCD
1991年第1期41-44,共4页
Grassland of China
