| 张帆;王素琴;罗晨;陈艳华*;李凤.几种人工饲料及繁殖技术对大草蛉生长发育的影响[J].植物保护,2004,30(5):36-40. |
| 几种人工饲料及繁殖技术对大草蛉生长发育的影响 |
| Effects of the artificial diets and breeding means on growth and development of Chrysopa septempunctata Wesmael |
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| DOI： |
| 中文关键词: 有害生物生物防治 大草蛉 人工饲料 基质颜色 存活率 |
| 英文关键词:biocontrol of pests Chrysopa septempunctata Wesmael artificial diets colour survival rate |
| 基金项目: |
| 张帆;王素琴;罗晨;陈艳华*;李凤 |
| 北京市农林科学院植物保护环境保护研究所 北京 100089;* 湖南农业大学植物保护系九九级本科实习生 |
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| 中文摘要: |
| 在实验室条件下,研究了啤酒酵母干粉等4种饲料对大草蛉各虫态发育历期、存活率和成虫繁殖力等的影响。结果表明:不同供试饲料对大草蛉的各发育阶段的影响存在差异。啤酒酵母干粉和柞蚕蛹冻干粉2种人工饲料饲喂时,幼虫在一龄期间便死亡;人工卵赤眼蜂蛹和米蛾卵2种代饲料可以使大草蛉完成整个世代,两者之间在幼虫、蛹发育历期上无明显差异,但均显著长于用蚜虫饲养的草蛉;用米蛾卵饲养的草蛉成虫没有产卵能力。供试饲料饲喂的大草蛉,各虫态的主要生命特征及生殖能力与对照相比明显降低。采用红、黄、绿、紫红、白、粉红6种颜色的衬纸,以蚜虫或啤酒酵母干粉为饲料。研究大草蛉产卵与基质颜色的关系,并采用纸条、钢丝、铝条作隔离物,对大草蛉自残阻隔进行了研究。试验表明:基质颜色对大草蛉产卵前期、总产卵量无明显影响,但大草蛉在紫红色、红色衬纸上产卵量比例比其它颜色基质高。纸条、钢丝、铝条3种隔离物中,纸条的隔离效果最好。 |
| 英文摘要: |
| The development period,survival rate and oviposition of Chrysopa septempunctata Wesmael reared by 4 diets were studied under laboratory conditions. The results showed that all larvae reared by brewer's yeast or freezed-dry powder of the pupae of tussore worm died at first instar. The duration of larvae and pupae reared by pupae of Trichogramma on artificial eggs were similar to those reared by rice moth eggs,significantly longer than those on Aphis craccivora Koch. The adults reared by rice moth eggs lack fecundity. The relationship between oviposition and the substrate colour and the technique of preventing larvae of C. septempunctata from killing each other were studied under laboratory conditions. The papers of six colours were interleaved with red, yellow,green,purplish red, white and pink. Slips of paper and wires and slips of aluminum served as partition. The adults were fed with brewer's yeast and aphids, respectively, and the larvae with A. craccivora Koch. The results indicated that the oviposition substrate colour had no effects on preoviposition time and fecundity, but the oviposition rate on purplish red and red interleaved papers were higher than that on other colours. Slips of paper are the best partition among all three kinds of partition, and the survival rate of larvae is the highest. |
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