摘要
试验表明:东亚小花蝽食性广泛,室内分别用昆虫及螨类、植物花粉,或人工饲料饲养,均能完成发育,有较高的成活率。用蚜虫、叶螨、蓟马、米蛾卵饲养小花蝽,可以获得60～80％的成虫,但必须供给饮水或植物枝叶,否则易死亡。喂人工卵可以不喂水,其成活率也达72～83％。在供水的条件下,试用10种植物花粉为饲料,以取食苦瓜、扁豆、丝瓜、月季花花粉的小花蝽,成虫获得率为90.9％,黄瓜花粉72.7％,其它花粉较差。凡成虫获得率较高的饲料,其若虫发育历期也较短,在27℃、70％RH条件下,一般为10～13天。
Laboratory experimental results indicated that 0. sauteri could prey/feed, and complete its life cycle on a wide range of arthropods, pollen, or an artificial diet, with high survival rate (from 1st ins,tar nymph to adult). When reared on aphids (Lipaphis erysimi, Rhopalosiphum padi, and Myzus persicae), leaf Bite (Tetranychus cinnabarinus), thrips (Thrips tabaci), or rice moth (Corcyra caphalonica) eggs, respectively, the survival rate was 60-80%, provided that water or fresh plants was supplied throughout the rearings. The survival rate was 72-83% when the predator was reared with the artificial eggs, in which case, water supply was found to be optional. A 90,9% survival was obtained when pollen of Momordica charantia, Luffa cylindrica [Cucurbitaceae], Dolichos loblab [Leguminosae], or Rosa chinensis [Rosaceae] was used, rsspectively. and 72.7% survival for using pollen of Cucumis sativs [Cucurbitaceae]. However, pollens of 5 other plant species tested resulted in poor survival. Water supply was also necessary for using the plant pollens for the rearings. When reared on the food materials which produced high survival rates, the nymphal period of the predator was usually 10-13 days under 27℃ and 70% RH. This was comparatively shorter than that by using the low-survival materials.
关键词
东亚小花蝽
饲养
花粉
人工饲料
Orius sauteri mass rearing plant pollen artificial diet
