首页> 外文期刊>Phytoparasitica >Development of immature tiger-fly Coenosia attenuata (Stein) reared on larvae of the fungus gnat Bradysia impatiens (Johannsen) in coir substrate
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Development of immature tiger-fly Coenosia attenuata (Stein) reared on larvae of the fungus gnat Bradysia impatiens (Johannsen) in coir substrate

机译:未成熟的Tiger-Fly Coenosia Attenuata(Stein)在益官基质的真菌GNAT Bradysia Impatiens(Johannsen)的幼虫上饲养

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摘要

The development of immature tiger-fly Coenosia attenuata (Stein) was examined when reared in coir substrate and fed third-instar larvae of the fungus gnat Bradysia impatiens (Johannsen). Single larvae of C. attenuata were fed 3, 5, 7 and 9 prey per day and two larvae were fed 6, 10, 14 and 18 prey per day. Optimal prey density was determined for larval developmental rate, time to adult eclosion, larval survival, and percentage of pupation. Other biological characteristics, such as pupal weight, pupal length, and adult body length, continued to increase with an increase in prey density. The use of coir for a rearing substrate resulted in a more efficient use of prey, less cannibalism, and improved developmental time, and survival than previously reported when agarose gel or a mixture of soil and coir were used for rearing substrates. These improvements in rearing methods are significant advancements for the use of C. attenuata as a biological control agent against whiteflies, leaf miners, fungus gnats and winged-aphids. Additionally, coir substrate serves as a mulch layer when fungus gnats are controlled with C. attenuata, such as Bradysia odoriphaga (Yang et Zhang) in Chinese chive, and B. impatiens in potted ornamental plants.
机译:在饲养在益体底物中饲养并喂食真菌GNAT Bradysia Impatiens(Johannsen)的第三龄幼虫时,检查了未成熟的Tiger-Fly Coenosia Attenuata(Stein)。每天喂食3,5,7和9个左右的C.癌的单幼虫,每天喂食6,10,14和18次幼虫。为幼虫发育速率确定最佳猎物密度,成人渗透时间,幼虫存活率和蛹化百分比。其他生物学特性,如蛹重量,蛹长和成人体长度,随着猛禽密度的增加,继续增加。使用饲料基板的益官导致捕食性,减少摄影和发育时间的更有效使用,并且在琼脂糖凝胶或土壤和益官的混合物中用于饲养基材时的发育时间比先前报告的存活率。这些饲养方法的改进是使用C.睾丸作为粉虱,叶片矿工,真菌GNAT和飞过蚜虫的生物控制剂的显着进步。另外,当真菌GNAT被用C. attenuata控制的C. attenuata(如中国韭菜的ardysia Odoriphaga(Yang Etzhang))和B. Impatiens在盆栽装饰植物中,配合衬底用作覆盖层。

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  • 来源
    《Phytoparasitica》 |2017年第1期|共10页
  • 作者单位

    Tianjin Acad Agr Sci Tianjin Inst Plant Protect 17 Jinjing Rd Tianjin 300381 Peoples R China;

    ARS Biol Control Insects Res Lab USDA 1503 S Providence Res PK Columbia MO 65203 USA;

    Tianjin Acad Agr Sci Tianjin Inst Plant Protect 17 Jinjing Rd Tianjin 300381 Peoples R China;

    Tianjin Acad Agr Sci Tianjin Inst Plant Protect 17 Jinjing Rd Tianjin 300381 Peoples R China;

    Tianjin Agr Univ Agr Anal &

    Test Ctr 22 Jinjing Rd Tianjin 300384 Peoples R China;

  • 收录信息
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类 病虫害及其防治;
  • 关键词

    Coenosia attenuata; Development; Bradysia; Coir; Substrate; Mulch layer;

    机译:Coenosia Attenuata;发展;阵列;益官;衬底;覆盖层;

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