盾负泥虫Lemascutellaris（Kraatz）是鸭跖草CommelinacommunisL．的天敌，为探讨利用该虫控制鸭跖草生长发育，我们对其发育起点温度及有效积温进行了研究。1材料与方法从田间采回当年刚出蛰的盾负泥虫成虫放入养虫笼内，用鸭跖草饲养，以收集经交配后所产受精卵粒。1．1饲养 Lemascutellaris (Kraatz) is a comfrey CommelinacommunisL. Of the natural enemies, in order to explore the use of the insect control of Commelina growth and development, we developed its starting point temperature and effective accumulated temperature were studied. 1 Materials and Methods Reclaimed from the field that year just out of the sting shield negative adult worms into the cocoon cage, with Commelina to raise, to collect after mating by the fertilized eggs. 1.1 feeding