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蓖麻蚕卵是目前较理想的繁殖赤眼蜂的中间寄主。由于蓖麻不耐寒,怕霜冻,我省不少地区多季不能生长,这对在早春季节大量养蚕、繁育蜂种,造成很大的困难。为了充分利用霜冻前的蓖麻叶和收薯前的木薯叶,克服春季养蚕饲料不足的困难,及时提新鲜量蚕卵,繁育蜂种,防治害虫。今年我们试用蓖麻叶、木薯叶、大豆等干粉,配合其他饲料成份,制成人工饲料,进行饲养试验。现将结果,整理如下。
Castor silkworm eggs is currently the ideal host for breeding Trichogramma. As Castor is not cold, afraid of frost, many areas in our province can not grow in more seasons, which in the early spring a large number of sericulture, breeding bee species, causing great difficulties. In order to make full use of the castor leaves before frost and the cassava leaves before harvest, overcoming the insufficiency of feed for raising silkworms in spring, timely raising fresh silkworm eggs, breeding bee seeds and controlling pests. This year we try castor leaves, cassava leaves, soybeans and other dry powder, with other feed ingredients, made of artificial feed, feeding experiments. Now the results, sorted as follows.