检索结果-南通市图书馆

Resistance Monitoring of Field Populations of panonychus citri to Three Pesticides

Plant Diseases and Pests 2024年第2期15卷 4-8页

作者： Yang HAN Tingmi YANG Guangxi Citrus Breeding and Cultivation Technology Innovation Center/Guangxi Laboratory of Germplasm Innovation and Utilization of Specialty Commercial Crops in North Guangxi/Guangxi Academy of Specialty Crops Guilin 541010China

[Objectives]The paper was to investigate the development of panonychus citri resistance to commonly used pesticides in major citrus producing areas in China,and to screen out new green and efficient agents for its control and prevention.[Methods]The resistance changes of field populations of P.citri to abamectin,pyridaben,and bifenazate in 12 locations across five provinces in China were compared using the leaf disc impregnation method.[Results]P.citri in the tested areas exhibited the most severe resistance to abamectin,with approximately 91.7%of the field populations showing high levels of resistance to abamectin(112.1-560.5 times);50%of P.citri populations exhibited high levels of resistance to pyridaben(123.0-202.7 times),while the remaining populations showed intermediate levels of resistance(25.6-80.3 times);except for the Zhejiang Xiangshan 2019 and Jiangxi Yudu 2019 populations,which exhibited a medium level of resistance to bifenazate,the remaining 10 monitored populations demonstrated a high level of resistance to bifenazate(140.4-686.1 times).[Conclusions]It is advisable to discontinue the use of abamectin and bifenazate due to significant resistance observed in populations of P.citri monitored in 12 locations across 5 provinces.It is recommended to reduce the frequency of pyridaben use and alternate with other acaricides that have different mechanisms of action due to the varying degrees of resistance developed.

关键词： panonychus citri Resistance Pesticide Biological activity

来源：

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Genome-wide analysis of panonychus citrimicro RNAs witha focus on potential insecticidal activity of 4 micro RNAs toeggs and nymphs

引用

Insect Science 2024年第2期31卷 354-370页

作者： Chuan-Zhen Li Yu-Hang Liu Deng Pan Meng-Hao Xia Qiang Zhang Yu-Chuang Li Guo-Rui Yuan Jin-Jun Wang Wei Dou Key Laboratory of Entomology and Pest Control Engineering College of Plant ProtectionAcademy of Agricultural SciencesSouthwestUniversityChongqingChina Key Laboratory of Agricultural Biosafety and Green Production of Upper Yangtze River(Ministry of Education) Academy of Agricultural SciencesSouthwest UniversityChongqingChina

panonychus citriMcGregor(Acari:Tetranychidae),a destructive citrus pest,causes considerable annual economic losses due to its short lifespan and rapid resistancedevelopment.MicroRNA(miRNA)-induced RNA interference is a promising approachfor pest control because of endogenous regulation of pest growth and development.Tosearch for miRNAs with potential insecticidal activity inP.citri,genome-wide analysis ofmiRNAs at different developmental stages was conducted,resulting in the identificationof 136 miRNAs,including 73 known and 63 novel miRNAs.A total of 17 isomiRNAsand 12 duplicated miRNAs were characterized.MiR-1 and miR-252-5p were identified asreference miRNAs forP.citriandTetranychus urticae.Based on differential expressionanalysis,treatments with miR-let-7a and miR-315 mimics and the miR-let-7a antagomirsignificantly reduced the egg hatch rate and resulted in abnormal egg development.Over-expression or downregulation of miR-34-5p and miR-305-5p through feeding significantlydecreased the adult eclosion rate and caused molting defects.The 4 miRNAs,miR-let-7a,miR-315,miR-34-5p,and miR-305-5p,had important regulatory functions and insectici-dal properties in egg hatching and adult eclosion.In general,these data advance our un-derstanding of miRNAs in mite biology,which can assist future studies on insect-specificmiRNA-based green pest control technology.

关键词： growth and development microRNAs panonychus citri referencemiRNAs regulation small RNA libraries

来源：

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Acaricidal Activity of Boenninghausenia sessilicarpa Against panonychus citri

引用

Agricultural Sciences in China 2009年第9期8卷 1097-1102页

作者： YANG Hui-zhi UU Jun-hua LI Qing LI Hong-jun LIU Hao-qiang YAO Ting-shan RAN Chun LEI Hui-de Institute of Citrus Chinese Academy of Agricultural Sciences Chongqing 400716 P.R.China Changdu Vocational ＆ Technical School Changdu 854000 P.R. China College of Agriculture Siehuan Agricultural University Ya＇an 625014 P.R. China

Acaricidal activity of Boenninghausenia sessilicarpa against panonychus cirri was tested in the laboratory. Four solvents were used to prepare crude extracts, petroleum ether, chloroform, ethyl acetate, and ethanol, among which ethanol was the most effective one. The results suggested that ethanol extracts of B. sessilicarpa had eminent acaricidal and ovicidal activities. Concentrated extracts were prepared using petroleum ether, chloroform, ethyl acetate, or distilled water as solvent. Mite mortality rates in the concentrated extracts by petroleum ether, chloroform, or distilled water were significantly lower than those by ethyl acetate. The LC50 values of eggs and female mites were 0.7639 and 1.1033 mg mL^-1, respectively. After liquid chromatography and thin layer chromatography, the concentrated extracts were separated into 14 groups of fractions and further tests for their acaricidal and ovicidal activities were conducted. Fraction 2 was found to possess higher acaricidal and ovicidal activities. The mortality of eggs and adult mites were 85.83 and 63.07%, respectively. Moreover, fraction 2 showed moderate oviposition inhibition effect （0.8795） against P. citri when the used dose was higher than 2.5 mg mL^-1

关键词： Boenninghausenia sessilicarpa panonychus citri acaricidal activity ovicidal activity

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

Overview of Occurrence,Prevention and Control of panonychus citri in China

引用

Plant Diseases and Pests 2023年第5期14卷 11-15页

作者： Yang HAN Binghai LOU Guangxi Academy of Specialty Crops Guangxi Laboratory of Germplasm Innovation and Utilization of Specialty Commercial Crops in North GuangxiGuilin 541010China

In order to further promote the prevention and control research of panonychus citri and improve its control effect,this paper summarizes the main influencing factors of the outbreak,main control technology and drug re... 详细信息

关键词： panonychus citri Drug resistance Prevention and control

来源：

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Analyses of Numerical Responses and Main Life Parameters for Determining the Suppression of Amblyseius cucumeris on panonychus citri

引用

Agricultural Sciences in China 2005年第5期4卷 368-375页

作者： ZHANGYan-xuan LINJian-zhen JIJie CHENXie KANGYu-mei InstituteofPlantProtection FujianAcademyofAgriculturalSciencesFuzhou350013P.R.China InstituteofCropCultivationandRotation FujianAcademyofAgriculturalSciencesFuzhou350013P.R.China

In this paper, the numeral response and main parameters of experimental population life table were analyzed for determining the suppressing ability of Amblyseius cucumeris on panonychus citri. The result showed that: (1) Under 21-31°C and 1 - 9 prey densities/leaf fragment condition, the prey consumptions of A. cucumeris increased with the temperature or prey density; (2) In 1:3 predator-prey ratio treatment, the suppression of P. citri (Ro=34.0053; T=19.4369; t=3.8204) was rather weak, it was enhanced as the ratio over 5:30, and the populations of P. citri in these treatments can be fully controlled within 4-5 days; (3) Under 25±1°C, 80-85% RH and 15L: 9D illumination conditions, the net reproductive rate, mean generation duration and the time for population double increase of P. citri (Ro=34.0053; T=19.4369; t=3.8204) were higher than those of A. cucumeris (Ro=21.8750; T=16.8943; t=3.7954). While the intrinsic rate of increase and finite rate of increase of the former (rm=0.1814; λ=1.1989) were lower than those of the latter (rm=0.1826; λ=1.2004). These results indicated that A. cucumeris is a desirable bio-control agent to suppress P. citri at lower population stage in citrus orchard.

关键词： Amblyseius cucumeris panonychus citri Numerical response Parameters of experimental population life table Biological control agent

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

柑桔红蜘蛛(panonychus citri(McG.))的初步研究

引用

植物保护学报 1963年第3期 321-330页

作者：黄良炉田常富蔡碧玉

柑桔红蜘蛛为柑桔主要害虫之一,据在广东(?)平地区观察,此虫虫口消长与树令,夏、秋梢,有一定的关系,一般结果树受害轻;幼苗受害严重。每当夏、秋梢老熟时,正值红蜘蛛出现高峯。该虫完成一世代的历期,与温度有关:2—5月,完成一世代的历... 详细信息

柑桔红蜘蛛为柑桔主要害虫之一,据在广东(?)平地区观察,此虫虫口消长与树令,夏、秋梢,有一定的关系,一般结果树受害轻;幼苗受害严重。每当夏、秋梢老熟时,正值红蜘蛛出现高峯。该虫完成一世代的历期,与温度有关:2—5月,完成一世代的历期31—41天;6—10月,历期20.25—27.00天。每头雌成虫产卵7—113粒。药剂防治以600—800倍20% T.D.N 效果最好;2,000—6,000倍乙基1059次之;0.4°波美的石硫合剂、0.4°波美的多硫化钡等残效期较短。

关键词：柑桔红蜘蛛初步研究 panonychus citri McG

来源：

同方期刊数据库评论

在线全文

同方期刊数据库

学校读者我要写书评

暂无评论

欢迎您,

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

请选择保存的检索档案：

请选择收藏分类：

通借通还

欢迎您,

建议与咨询 留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

请选择保存的检索档案： 新增检索档案 确定 取消

请选择收藏分类： 新增自定义分类 确定 取消

通借通还

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

请选择保存的检索档案：

请选择收藏分类：