龙艳玲,胡军华,王帆,陈若霓,陈仕江,卿玉玲,秦绍蓉.粉棒束孢对柑橘全爪螨的毒杀活性及其生物学特性[J].湖南农业大学学报:自然科学版,2017,43(4):.
粉棒束孢对柑橘全爪螨的毒杀活性及其生物学特性
  
DOI:
中文关键词:  粉棒束孢  柑橘全爪螨  杀螨活性  生物学特性
英文关键词:Paecilomyces farinosus  Panonychus citri(McGregor)  miticide activity  biological control
基金项目:“十二?五”农村领域国家科技计划项目(2014BAD16B0702–5);农业部公益性行业专项(201103020);太极集团有限公司项目(2015071);重庆市社会民生科技创新专项(cstc2016shmszx1147)
作者单位
龙艳玲,胡军华,王帆,陈若霓,陈仕江,卿玉玲,秦绍蓉 1.西南大学柑橘研究所重庆 4007122.太极集团有限公司重庆 4007123.重庆市中药研究院甘孜州康定贡嘎中华虫草产业有限责任公司重庆 400712 
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中文摘要:
      室内测定了粉棒束孢(Paecilomyces farinosus)菌株nq1–1对柑橘全爪螨雌成螨的毒力,并通过单因素试验,分析该菌的生物学特性。结果表明:nq1–1菌株对柑橘全爪螨雌成螨的LC50和LT50分别为1.59×107 /mL和7.9 d;菌株最适生长和产孢培养基分别为萨氏培养基和PDA培养基;蔗糖和有机氮源(赖氨酸)有利于该菌生长和产孢;菌丝生长和产孢的最适温度均为20 ℃,最适孢子萌发温度为25~28 ℃;菌丝生长、产孢以及孢子萌发的最适pH均为6.0;nq1–1菌株具有较强的抗紫外线能力;82.6%氧化亚铜(水分散粒剂)、75%百菌清(可湿性粉剂)、50%喹啉铜(可湿性粉剂)等杀菌剂与菌株相容性较好。nq1–1菌株对柑橘全爪螨有较好的毒杀活性,喜好偏低温、中性以及富含有机营养的环境。
英文摘要:
      The miticide activity of Paecilomyces farinosus strain nq1–1 to Panonychus citri(McGregor) was determined by the method of indoor toxicity, and single factor tests were used to explore the biological characteristics of the strain. The results indicated that the LC50 and LT50 of strain nq1–1 to Panonychus citri(McGregor) was respectively 1.59×107 /mL and 7.9 d. SDAY and PDA medium were both the optimum mediums to strain nq1–1 for hyphal growth and sporulation. Sucrose and lysine were conducive to fungal growth and sporulation. The most suitable culture temperature for hyphal growth and sporulation were 20 ℃, and temperature at 25–28 ℃ was most conductive to the spore germination. The optimum pH for hyphal growth, sporulation and spore germination was 6.0. UV had no significant effect on strain nq1–1. Moreover, strain nq1–1 had a good compatibility with 82.6% cuprous oxide WG, 75% chlorothalonil WP, 50% oxine–copper WP. In conclusion, strain nq1–1 was toxic to Panonychus citri(McGregor), and grew best under slightly low temperature, neutral pH and high organic nutrition.
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