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Analysis of the spatiotemporal trends and influencing factors of Hyphantria cunea in China
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作者 Hongwei Zhou Chaoqun Gong +2 位作者 Xiaodong Li Yue Wang Yunbo Yan 《Journal of Forestry Research》 SCIE EI CAS CSCD 2024年第6期294-305,共12页
In recent years,the situation of the Hyphantria cunea(Drury)(Lepidoptera:Erebidae),infestation in China has been serious and has a tendency to continue to spread.A comprehensive analysis was carried out to examine the... In recent years,the situation of the Hyphantria cunea(Drury)(Lepidoptera:Erebidae),infestation in China has been serious and has a tendency to continue to spread.A comprehensive analysis was carried out to examine the spa-tial distribution trends and influencing factors of H.cunea.This analysis involved integrating administrative division and boundary data,distribution data of H.cunea,and envi-ronmental variables for 2021.GeoDetector and gravity analysis techniques were employed for data processing and interpretation.The results show that H.cunea exhibited high aggregation patterns in 2021 and 2022 concentrated mainly in eastern China.During these years,the focal point of the infestation was in Shandong Province with a spread towards the northeast.Conditions such as high vegetation density in eastern China provided favorable situations for growth and development of H.cunea.In China,the spatial distribution of the moth is primarily influenced by two critical factors:precipitation during the driest month and elevation.These play a pivotal role in determining the spread of the species.Based on these results,suggestions are provided for a mul-tifaceted approach to prevention and control of H.cunea infestation. 展开更多
关键词 hyphantria cunea Temporal trends GeoDetector spatial analysis Spatial heterogeneity
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美国白蛾Hyphantria cunea(Drury)越冬蛹的抗寒性研究 被引量:10
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作者 孔锋 韩瑞东 +2 位作者 裴元慧 李红梅 孙绪艮 《蚕业科学》 CAS CSCD 北大核心 2007年第4期534-537,共4页
基于为控制美国白蛾Hyphantria cunea(Drury)对桑树和柞树的的危害提供理论依据,测定了美国白蛾越冬蛹不同时期的过冷却点和含水量。结果显示,越冬蛹的过冷却点以2月份最低,为(-27.07±0.38)℃,11、12月份最高,分别为(-20.38±2... 基于为控制美国白蛾Hyphantria cunea(Drury)对桑树和柞树的的危害提供理论依据,测定了美国白蛾越冬蛹不同时期的过冷却点和含水量。结果显示,越冬蛹的过冷却点以2月份最低,为(-27.07±0.38)℃,11、12月份最高,分别为(-20.38±2.26)℃和(-22.99±4.03)℃;含水量以11、3月最高,分别为67.03%和65.07%,1月份开始下降,2月份降至最低30.76%,3月份又增加到45.95%。含水量的变化与过冷却点的变化趋势相似,含水量的下降降低了越冬蛹的过冷却点,可增强其抗寒能力。 展开更多
关键词 美国白蛾 过冷却点 含水量 抗寒性
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Cadmium(Cd)exposure through Hyphantria cunea pupae reduces the parasitic fitness of Chouioia cunea:A potential risk to its biocontrol efficiency 被引量:1
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作者 YAN Shan-chun WU Hong-fei +2 位作者 ZHENG Lin TAN Ming-tao JIANG Dun 《Journal of Integrative Agriculture》 SCIE CAS CSCD 2023年第10期3103-3114,共12页
Heavy metal contamination has been regarded as an environmental variable that affects the efficiency of pest biological control,but the parasitic fitness of parasitoids under heavy metal stress is poorly understood.He... Heavy metal contamination has been regarded as an environmental variable that affects the efficiency of pest biological control,but the parasitic fitness of parasitoids under heavy metal stress is poorly understood.Herein,the effect of Cd exposure through the host pupa of Hyphantria cunea on the parasitic fitness of Chouioia cunea was investigated,and the mechanism by which Cd exposure affects the interaction between H.cunea and C.cunea from the perspective of innate immunity in host insect and the oxidative status in the parasitoid offspring was explored.Our results indicated that Cd can be transferred from the H.cunea pupae to the parasitoid offspring,and the transfer coefficient reflected biological amplification.There were no significant differences in the rates of parasitism success and offspring emergence between the untreated and Cd-treated groups.However,after parasitizing Cd-accumulated pupae,the parasitic fitness of offspring wasps(e.g.,the number,individual size and life span)decreased significantly.Under Cd exposure,the cellular and humoral immunity of H.cunea pupae decreased significantly.Compared with the untreated group,the H_(2)O_(2)content of parasitoid offspring in the Cd-treated group was significantly increased.Cd exposure significantly inhibited superoxide dismutase activity in parasitoid offspring,but the contents of ascorbic acid and glutathione were significantly increased by Cd stress.Taken together,these results indicate that Cd exposure reduces the cyclic utilization efficiency of C.cunea on H.cunea pupae.The oxidative status of parasitoid offspring triggered by Cd exposure could be responsible for the reduced parasitic fitness of C.cunea on Cd-accumulated H.cunea pupae. 展开更多
关键词 heavy metal hyphantria cunea parasitic fitness Chouioia cunea oxidative status innate immunity
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AFLP analysis of genetic variation of Hyphantria cunea(Drury) populations in Beijing and a nearby site 被引量:1
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作者 TAO Jing AI Yi-wen +3 位作者 LUO You-qing YANG Liu YAN Wei CHEN Min 《Forestry Studies in China》 CAS 2009年第1期14-19,共6页
Hyphantria cunea (Drury) is a severe invasive pest in Beijing. It is important to understand the reason for its successful invasion and outbreak. Accordingly, this study was tailored to assess molecular variation an... Hyphantria cunea (Drury) is a severe invasive pest in Beijing. It is important to understand the reason for its successful invasion and outbreak. Accordingly, this study was tailored to assess molecular variation and genetic relationships among three H. cunea populations in Beijing and one population from Sanhe in Hebei Province as control (totally 100 individuals). A silver-labeled amplified fragment length polymorphisms (AFLP) DNA profiling method was used to detect the genetic diversity and relationship among the populations. Five EcoRI and MseI primer combinations produced a total of 171 (91.2% polymorphic) informative fragments. The average Nei's genetic diversity in four H. cunea populations analyzed by Popgene3.2 software was 0.2287, and the level of genetic diversity ranked in the order BDR (reared population in Daxing, Beijing) 〉 BDN (natural population in Daxing, Beijing) 〉 HSN (natural population in Sanhe, Hebei Province) 〉 BFN (natural population in Fengtai, Beijing). The value of genetic differentia- tion among populations was 0.3321, and the gene flow was 1.0057. The genetic distance between these populations ranged from 0.0735 to 0.3309, 0.0531 on average. The result of UPGMA (unweighed pair group method with arithmetic averages) clustering showed that populations BFN and HSN were closely related, while BFN and BDN had the largest genetic distance. These results indicate that H. cunea populations in Beijing might originate from several areas. 展开更多
关键词 hyphantria cunea (drury AFLP genetic variation genetic differentiation
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Genetic diversity and differentiation of fall webworm (Hyphantria cunea Drury) populations
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作者 DU Juan GAO Bao-jia +1 位作者 ZHOU Guo-na MIAO Ai-mei 《Forestry Studies in China》 CAS 2009年第3期158-163,共6页
The molecular variation and genetic relationships among five populations of the fall webworm (Hyphantria cunea Drury) in China were assessed using microsatellite technology. Ten microsatellite primers, producing pol... The molecular variation and genetic relationships among five populations of the fall webworm (Hyphantria cunea Drury) in China were assessed using microsatellite technology. Ten microsatellite primers, producing polymorphic bands, were used across 300 samples. The percentage of polymorphic loci (PPB) was 98.36%; the percentage of polymorphic loci in five populations ranged from high to low in the following order: Cangzhou population, Yantai population, Qinhuangdao population, Dandong population, and Shijiazhuang population. The results showed that 34.38% of the total genetic variation of the fall webworm (GsT) occurs among populations, while most variation (65.62%) exists within populations. Nei's genetic distances ranged from 0.1386 to 0.3224. Using the unweighted pair group method with arithmetic mean (UPGMA), Nei's genetic distances were analyzed by a clustering technique and the dendrogram shows that population differentiation is closely related to the time and geographic origin of the invasion. The major factors impacting genetic diversity of fall webworm populations are longitude, the plain area ratio, annual precipitation, latitude and time of invasion. The formation of genetic structure is correlated with characteristics of the life history and invasion ecology of the species. 展开更多
关键词 hyphantria cunea drury simple sequence repeat (SSR) analysis genetic diversity genetic differentiation
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A Facile Synthetic Method for (3Z,6Z,9S,10R)-9,10-Epoxy-3,6-heneicosadiene,Sex Pheromone Component of Hyphantria Cunea (Drug) 被引量:4
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作者 Chao CHE, Zhong Ning ZHANG StateKey Laboratory IntegratedManagementofInsectsandRodents,Institute of Zoology, Chinese Academy of Sciences, Beijing 100080 Graduate School of the Chinese Academy of Sciences, Beijing 100039 《Chinese Chemical Letters》 SCIE CAS CSCD 2005年第4期468-470,共3页
Total synthesis of (3Z, 6Z, 9S, 10R)-9, 10-epoxy-3, 6-heneicosadiene, sex pheromone component of Hyphantria cunea (Drug), was achieved using Sharpless AE kinetic resolution and alkylative epoxide rearrangement as ke... Total synthesis of (3Z, 6Z, 9S, 10R)-9, 10-epoxy-3, 6-heneicosadiene, sex pheromone component of Hyphantria cunea (Drug), was achieved using Sharpless AE kinetic resolution and alkylative epoxide rearrangement as key steps. 展开更多
关键词 Sex pheromone hyphantria cunea (Drug) Sharpless kinetic resolution asymmeric synthesis.
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Effects of Some Materials Extracted from Ajuga Species on the Larvae of Hyphantria cunea and its Natural Enemies 被引量:1
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作者 迟德富 DarvasBela +1 位作者 RafaelOceteRubio JinChuanling 《Journal of Forestry Research》 SCIE CAS CSCD 1997年第2期99-103,共5页
Six kinds of cxtracts drawn from Ajuga multiflora and .A. multliflora var. brevispicala and A. multiflora var.serotina using methanol and acetone were used in this experiment to test their killing activity to the se... Six kinds of cxtracts drawn from Ajuga multiflora and .A. multliflora var. brevispicala and A. multiflora var.serotina using methanol and acetone were used in this experiment to test their killing activity to the second instar larvae ofHypantria cunea and their influence on its natural enemics. The average death rate caused by those extracts on the secondinstar larvae was 85.70%. The mortality rate caused by the extracts drawn with methanol was from 88.89% to 96.33%,which was significal1tly l1igl1er tl1a11 tl1at caused by acetol1e extracts. 'I11osc extracts were satt to TrchogranInIa `Ie)uI,xiIinIi,Coccinella septempunctata, the natural enelnies of H. cunea. We did not found any evidence shown that those extracts hadany influence the emergence and the devclopment of T. dendrolimi. Those methanolic extracts gotten from A. multiflora andA. multiflora var. brevispicata had no significant effects on the mortality of the larvae and adults of C. septenrpunctala.Those eXtracts could be used in the control of H cunea sattly. 展开更多
关键词 Ajuga multiflora Ajuga multiflora var brevispicata A multiflora var serotina hyphantria cunea Extracts Natural enemy Trichogramma dendrolimi Coccinella septempunctata Control
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The eff ects of temperature and host size on the development of Brachymeria lasus parasitising Hyphantria cunea
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作者 Shuo Tian Tianzi Gu +3 位作者 Cong Chen Xudong Zhao Pengcheng Liu Dejun Hao 《Journal of Forestry Research》 SCIE CAS CSCD 2021年第1期401-407,共7页
Brachymeria lasus Walker is a solitary endoparasitoid that attacks the pupae of a wide range of lepidopteran hosts,including an important invasive species,the fall webworm(Hyphantria cunea Drury).We studied the relati... Brachymeria lasus Walker is a solitary endoparasitoid that attacks the pupae of a wide range of lepidopteran hosts,including an important invasive species,the fall webworm(Hyphantria cunea Drury).We studied the relationship between temperature and development of B.lasus from egg to adult hatching.The results show a decrease in parasitoid development time from 34.4 days at 18°C to 10.6 days at 32°C.The minimum threshold temperature of B.lasus was 13.2°C±1.7°C,and the eff ective accumulated temperature was 210.3±28.7 degree days.These results provide a basis for optimizing the production of this parasitoid.In addition,the eff ects of host size on off spring performance of B.lasus were investigated under laboratory conditions.Off spring longevity,size,and percentage of females were positively correlated with host size.Female off spring are larger and live longer than males.Furthermore,this research showed that parasitoid adults successfully emerged from approximately 27.9%of pupae.However,eclosion or hatching of H.cunea decreased dramatically,which may be due to damage caused by female B.lasus when testing hosts with their ovipositors or by feeding on them.The results suggest that B.lasus has the potential to become an effi cient natural enemy for controlling H.cunea. 展开更多
关键词 hyphantria cunea Brachymeria lasus PARASITOID TEMPERATURE DEVELOPMENT FITNESS
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基于RPA-CRISPR/Cas12a的美国白蛾可视化快速检测新方法
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作者 王雅娜 于艳雪 +4 位作者 田茜 张柳 李红卫 杨硕 翟俊峰 《环境昆虫学报》 CSCD 北大核心 2024年第5期1051-1058,共8页
美国白蛾Hyphantria cunea Drury是我国重要林业害虫,寄主植物众多且分布范围广泛。本试验基于重组酶聚合酶扩增(RPA)和CRISPR检测技术,构建美国白蛾RPA-CRISPR/Cas12a分子检测体系。根据NCBI数据库中的美国白蛾及近缘种、近似种线粒体C... 美国白蛾Hyphantria cunea Drury是我国重要林业害虫,寄主植物众多且分布范围广泛。本试验基于重组酶聚合酶扩增(RPA)和CRISPR检测技术,构建美国白蛾RPA-CRISPR/Cas12a分子检测体系。根据NCBI数据库中的美国白蛾及近缘种、近似种线粒体COⅠ基因片段信息以及昆虫样本CO I基因测序比对结果为模板,设计美国白蛾特异性RPA引物和CrRNA,通过RPA扩增目标序列,结合CRISPR检测技术并对反应条件进行优化,最终该体系灵敏度可检测的最低限度1.0×10^(-1) ng/μL,较RPA结合普通凝胶电泳提高了100倍,检测体系在30 min内即可实现对害虫的现场快速、可视化、精准鉴定。为美国白蛾现场检测提供理论和实践依据,有助于保护森林资源和生态环境的安全。 展开更多
关键词 美国白蛾 RPA CRISPR Cas12a 可视化 快速检测
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美国白蛾天敌昆虫应用研究进展
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作者 邹萍 曹亮明 +3 位作者 孙守慧 杨忠岐 张彦龙 王小艺 《中国生物防治学报》 CSCD 北大核心 2024年第5期1194-1206,共13页
美国白蛾是一种国际检疫性害虫,原产于北美。由于美国白蛾强大的扩散能力、较长的为害期以及快速繁殖等特性,目前已有35个国家报道了其入侵记录。自1979年美国白蛾在辽宁丹东发现以来,不断地向我国南方地区扩散。因此,根除全部种群已不... 美国白蛾是一种国际检疫性害虫,原产于北美。由于美国白蛾强大的扩散能力、较长的为害期以及快速繁殖等特性,目前已有35个国家报道了其入侵记录。自1979年美国白蛾在辽宁丹东发现以来,不断地向我国南方地区扩散。因此,根除全部种群已不可能,采取持续有效的生物防控策略是可行的途径。本文总结了国内外美国白蛾的捕食性和寄生性天敌种类,比较了不同地区和不同发生期美国白蛾天敌的多样性,并对利用本地天敌和引进原产地天敌防治美国白蛾的应用技术进行了归纳分析。原产地天敌对美国白蛾具有更强的适应性和攻击性,通过引进原产地天敌可望实现更加持续有效的控制作用。最后展望了天敌昆虫控制美国白蛾的应用前景。 展开更多
关键词 美国白蛾 天敌昆虫 生物防治 入侵害虫 天敌应用
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Reproduction and biological characteristic of Chouioia cunea 被引量:4
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作者 田秀玲 王洪魁 姜凤英 《Journal of Forestry Research》 SCIE CAS CSCD 2002年第4期331-333,338,共3页
Chouioia cunea Yang is a natural enemy for many kinds of crop and forest pests, particularly for Hyphantria cunea Drary, which is an international quarantine pest. The experiment of rearing Chouioia cunea with Tussah ... Chouioia cunea Yang is a natural enemy for many kinds of crop and forest pests, particularly for Hyphantria cunea Drary, which is an international quarantine pest. The experiment of rearing Chouioia cunea with Tussah (Silkworm) pupa were carried out by 搕hree-cut method?and inoculating method. The results showed that three-cut method is effective way for breed-ing Chouioia cunea, with a parasitical rate of 95%. The biological characteristics and the life cycle of Chouioia cunea were ob-served and described and more hosts of Chouioia cunea were found. 揟hree-cut method?as a new technique of rearing Chouioia cunea has been put into practice. 展开更多
关键词 Chouioia cunea Rearing method Pest control hyphantria cunea
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美国白蛾RyR对氯虫苯甲酰胺胁迫响应及分子对接分析
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作者 张承志 范程程 +1 位作者 孙丽丽 曹传旺 《北京林业大学学报》 CAS CSCD 北大核心 2024年第10期90-99,共10页
【目的】阐明美国白蛾鱼尼丁受体(RyR)如何参与氯虫苯甲酰胺对美国白蛾的毒杀作用,并探究RyR与氯虫苯甲酰胺的分子对接模式,以期揭示美国白蛾RyR基因响应氯虫苯甲酰胺胁迫的分子机制。【方法】克隆获得美国白蛾RyR基因的完整cDNA序列,... 【目的】阐明美国白蛾鱼尼丁受体(RyR)如何参与氯虫苯甲酰胺对美国白蛾的毒杀作用,并探究RyR与氯虫苯甲酰胺的分子对接模式,以期揭示美国白蛾RyR基因响应氯虫苯甲酰胺胁迫的分子机制。【方法】克隆获得美国白蛾RyR基因的完整cDNA序列,采用实时荧光定量RT-PCR技术分析RyR基因的时空表达模式以及在亚致死质量浓度氯虫苯甲酰胺胁迫下美国白蛾RyR基因的表达水平。通过RNAi技术沉默美国白蛾RyR基因,进而测定沉默体在氯虫苯甲酰胺胁迫下的存活率,探讨美国白蛾RyR基因对氯虫苯甲酰胺抗性的调控作用。利用Discovery Studio 2019 Client软件对氯虫苯甲酰胺与RyR受体进行分子对接,并通过结合能和可视化分析对接情况。【结果】(1)氯虫苯甲酰胺对美国白蛾3龄幼虫72 h的致死中质量浓度(LC50)和亚致死质量浓度(LC30)分别为21.40、11.13μg/L,显示出较高的生物活性。(2)在氯虫苯甲酰胺LC30质量浓度(11.13μg/L)处理下,美国白蛾3龄幼虫RyR基因的相对表达量随处理时间的延长表现为先升高后降低,处理48和72 h分别为对照组的2.6倍和1.5倍。(3)HcRyR基因沉默体在氯虫苯甲酰胺LC30胁迫下72 h时存活率为73.33%,显著高于对照组的46.66%,表明沉默RyR基因显著降低了美国白蛾3龄幼虫对氯虫苯甲酰胺的敏感性。(4)分子对接结果表明RyR与氯虫苯甲酰胺的结合能为-31.35 kJ/mol,两者间存在氢键与范德华力使其稳定结合。【结论】明确美国白蛾RyR基因对氯虫苯甲酰胺胁迫响应分子机制,为进一步认识美国白蛾RyR结构,并为靶向杀虫剂开发提供理论依据。 展开更多
关键词 美国白蛾 鱼尼丁受体 氯虫苯甲酰胺 基因表达 RNAI 分子对接
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Masculinizer gene controls sexual differentiation in Hyphantria cunea 被引量:1
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作者 Xiaowei Li Huihui Liu +6 位作者 Honglun Bi Yaohui Wang Jun Xu Sufang Zhang Zhen Zhang Ze Zhang Yongping Huang 《Insect Science》 SCIE CAS CSCD 2024年第2期405-416,共12页
The Masculinizer gene,Masc,encodes a lepidopteran-specific novel CCCHtype zinc finger protein,which controls sex determination and dosage compensation in Bombyx mori.Considering the potential application of it in pest... The Masculinizer gene,Masc,encodes a lepidopteran-specific novel CCCHtype zinc finger protein,which controls sex determination and dosage compensation in Bombyx mori.Considering the potential application of it in pest control,it is necessary to investigate the function of Masc gene in Hyphantria cunea,a globally invasive forest pest.In the present study,we identified and functionally characterized the Masc gene,HcMasc,in H.cunea.Sequence analysis revealed that HcMASC contained the conserved CCCH-type zinc finger domain,nuclear localization signal,and male determining domain,in which the last was confirmed to be required for its masculinization in BmN cell line.However,expression data showed that unlike male-biased expression in B.mori,Hc-Masc gene expresses in main all developmental stages or tissues in both sexes.Clustered regularly interspaced palindromic repeats(CRISPR)/CRISPR-associated protein 9-based disruption of the common exons 1 and 3 of the HcMasc gene resulted in imbalanced sex ratio and abnormal external genitalia of both sexes.Our results suggest that the HcMasc gene is required for both male and female sexual differentiation and dosage compensation in H.cunea and provide a foundation for developing better strategies to control this pest. 展开更多
关键词 CRISPR/Cas9 dosage compensation hyphantria cunea Masc sexual differentiation
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白蛾黑棒啮小蜂的繁育生物学特性
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作者 刘绪丹 张艺馨 +2 位作者 史俊瑞 杨丽元 孙守慧 《中国生物防治学报》 CSCD 北大核心 2024年第4期804-812,共9页
白蛾黑棒啮小蜂Tetrastichus septentrionalis是美国白蛾Hyphantria cunea的重要寄生性天敌之一,具有重要应用前景。以黄粉甲Tenebrio molitor蛹为替代寄主繁育白蛾黑棒啮小蜂,研究其寄生行为及生物学特性,可为白蛾黑棒啮小蜂大规模繁... 白蛾黑棒啮小蜂Tetrastichus septentrionalis是美国白蛾Hyphantria cunea的重要寄生性天敌之一,具有重要应用前景。以黄粉甲Tenebrio molitor蛹为替代寄主繁育白蛾黑棒啮小蜂,研究其寄生行为及生物学特性,可为白蛾黑棒啮小蜂大规模繁育应用于美国白蛾生物防治提供参考。研究表明,白蛾黑棒啮小蜂的交配行为可分为交配前期、交配中期和交配后期3个阶段,寄生行为分为搜寻、刺探、产卵和产卵后梳理4个阶段;胚胎发育期可分为胚胎发育早期、胚胎伸长及器官形成期和胚胎成熟期;胚后发育包括幼虫期、蛹期和成虫期;刚羽化的雌蜂卵巢内不含有成熟卵粒,成熟卵出现于羽化24 h后。在18℃、21℃、24℃、27℃和30℃五个温度梯度条件下测定白蛾黑棒啮小蜂全世代发育历期达59.35 d、31.20 d、22.85 d、18.45 d和13.90 d,其发育起点温度和有效积温分别为14.15℃和225.06 d·℃。 展开更多
关键词 白蛾黑棒啮小蜂 美国白蛾 个体发育 有效积温
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白蛾周氏啮小蜂工厂化生产及应用进展
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作者 宋丽威 杜陈勇 +3 位作者 刘白璐 陈存彬 徐炳芳 温玄烨 《中国森林病虫》 北大核心 2024年第1期17-21,共5页
白蛾周氏啮小蜂Chouioia cunea是美国白蛾Hyphantria cunea的优势天敌。20世纪80年代初,我国开始对白蛾周氏啮小蜂的人工繁育技术进行系统研究,成功研发出以柞蚕Antheraea pernyi蛹为中间寄主的工厂化生产技术。笔者介绍白蛾周氏啮小蜂... 白蛾周氏啮小蜂Chouioia cunea是美国白蛾Hyphantria cunea的优势天敌。20世纪80年代初,我国开始对白蛾周氏啮小蜂的人工繁育技术进行系统研究,成功研发出以柞蚕Antheraea pernyi蛹为中间寄主的工厂化生产技术。笔者介绍白蛾周氏啮小蜂工厂化生产及林间应用涉及的生产设备、生产工艺、释放技术及应用现状,提出研究天敌复合体、测试常用农药对白蛾周氏啮小蜂安全性和优化林间释放技术等建议,以期最大限度地优化白蛾周氏啮小蜂生产工艺,为提高繁育效率和防治效果提供理论支撑。 展开更多
关键词 周氏啮小蜂 工厂化生产 生物防治 美国白蛾
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南京城区美国白蛾发生规律探析
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作者 戴伟 奚月明 +2 位作者 游琳琳 刘贺佳 冯婷 《江苏林业科技》 2024年第2期14-20,52,共8页
2019—2023年对美国白蛾在南京市主城4区(鼓楼区、建邺区、秦淮区、玄武区)的发生规律进行了调查和分析,根据这5 a内美国白蛾成虫种群动态变化,幼虫危害情况及每年越冬蛹基数的调查,总结得出南京市主城区美国白蛾生活史。根据气象因子... 2019—2023年对美国白蛾在南京市主城4区(鼓楼区、建邺区、秦淮区、玄武区)的发生规律进行了调查和分析,根据这5 a内美国白蛾成虫种群动态变化,幼虫危害情况及每年越冬蛹基数的调查,总结得出南京市主城区美国白蛾生活史。根据气象因子的数据汇总,并选取几种气象因子与每代成虫发生量进行相关性分析得出:与越冬代成虫羽化量最显著相关的气象因子为旬平均相对湿度,相关性R^(2)=0.9125;与第1代成虫羽化量最显著相关的气象因子为旬平均相对湿度,相关性R^(2)=0.6124;与第2代成虫羽化量最显著相关的气象因子为旬总降雨量,R^(2)=0.9998。利用回归法建立了南京市主城区美国白蛾发生期预测模型,以期为长江中下游其他城市地区预测美国白蛾发生趋势和开展防治工作提供一定参考。 展开更多
关键词 美国白蛾 发生规律 气象因子 南京城区
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四类重大林业有害生物的防控有效性分析
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作者 才琪 朱宁波 +3 位作者 潘佳亮 董瀛谦 刘枫 郭瑞 《中国森林病虫》 北大核心 2024年第1期9-16,共8页
利用普通最小二乘法的稳健标准误模型及似不相关回归模型,定量分析松材线虫Bursaphelenchus xylophilus、美国白蛾Hyphantria cunea、薇甘菊Mikania micrantha及林业害鼠(兔)4类重大林业有害生物的防控有效性。结果显示:预防措施可以显... 利用普通最小二乘法的稳健标准误模型及似不相关回归模型,定量分析松材线虫Bursaphelenchus xylophilus、美国白蛾Hyphantria cunea、薇甘菊Mikania micrantha及林业害鼠(兔)4类重大林业有害生物的防控有效性。结果显示:预防措施可以显著使松材线虫、美国白蛾及薇甘菊的发生面积呈递减趋势,防治资金的使用效率为抑制薇甘菊扩散起到显著作用。对于松材线虫病的防控,应加强生物化学农药在媒介昆虫防治中的应用,提升防控资金的使用效果;轻度发生的美国白蛾可采用综合防治措施,中度及重度发生首选生物化学农药防治;薇甘菊主要采用化学及营林防治措施,轻度发生时可结合采用人工物理防治;轻度发生的林业害鼠(兔)可采用综合防治措施,中度及重度发生采用生物、化学及人工物理防治,当重度发生时,营林措施控制灾害扩散的效果最好。 展开更多
关键词 松材线虫 美国白蛾 薇甘菊 林业害鼠(兔) 防控有效性
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阿维菌素对美国白蛾5龄幼虫解毒酶的影响
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作者 祝军 《吉林林业科技》 2024年第3期15-19,共5页
利用室内控制试验,采用饲料混毒法,研究不同含量阿维菌素胁迫对美国白蛾5龄幼虫6种解毒酶活性的影响。结果表明:阿维菌素对美国白蛾5龄幼虫解毒酶均具有较强影响,随阿维菌素含量的增加,细胞色素P450酶活性、谷胱甘肽S-转移酶活性、乙酰... 利用室内控制试验,采用饲料混毒法,研究不同含量阿维菌素胁迫对美国白蛾5龄幼虫6种解毒酶活性的影响。结果表明:阿维菌素对美国白蛾5龄幼虫解毒酶均具有较强影响,随阿维菌素含量的增加,细胞色素P450酶活性、谷胱甘肽S-转移酶活性、乙酰胆碱酯酶活性呈先升高后下降的趋势,其中阿维菌素母液含量为75μg·kg-1时,阿维菌素处理组的细胞色素P450酶活性、谷胱甘肽S-转移酶活性、乙酰胆碱酯酶活性分别为31 U·L-1、157 U·mg-1 prot、12 U·mg-1 prot;羧酸酯酶活性在整个试验过程中呈现下降趋势;ATP结合盒转运蛋白活性和尿苷二磷酸葡萄糖醛酸转移酶活性在整个试验过程中呈上升趋势。 展开更多
关键词 美国白蛾 阿维菌素 解毒酶
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美国白蛾发生原因分析及综合防控措施
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作者 李峰涛 《果树资源学报》 2024年第5期74-76,共3页
美国白蛾是国际性检疫对象,1979年从朝鲜传入我国,具有食性杂、繁殖率高、适生区广、传播快、难以根除等特点,寄主植物超过300余种,暴发时会给农林业生产和经济发展等造成重大损失。通过对美国白蛾的发生原因、发生特点等进行分析,研究... 美国白蛾是国际性检疫对象,1979年从朝鲜传入我国,具有食性杂、繁殖率高、适生区广、传播快、难以根除等特点,寄主植物超过300余种,暴发时会给农林业生产和经济发展等造成重大损失。通过对美国白蛾的发生原因、发生特点等进行分析,研究了美国白蛾防治中存在的主要问题,提出了在新形势下美国白蛾的防治理念和措施,以期为美国白蛾的有效防治提供借鉴和参考。 展开更多
关键词 美国白蛾 发生原因 综合防控
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东平县美国白蛾综合防治研究
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作者 彭彬 《绿色科技》 2024年第9期163-166,共4页
对比了4种美国白蛾综合防治方法的效果和优劣。结果表明:飞机喷药、地面喷药以及飞机喷洒与地面结合药物防治都表现出较好的防治效果,能够有效控制美国白蛾数量,平均每株目标树的存留数量在10.6~11.8只。其中,飞机喷药具有覆盖范围广、... 对比了4种美国白蛾综合防治方法的效果和优劣。结果表明:飞机喷药、地面喷药以及飞机喷洒与地面结合药物防治都表现出较好的防治效果,能够有效控制美国白蛾数量,平均每株目标树的存留数量在10.6~11.8只。其中,飞机喷药具有覆盖范围广、效果显著的特点,适用于大面积的防治;飞机喷药与地面结合防治效果基本相同;地面喷药则适用于小面积的防治,能够集中施药于目标区域。杀虫灯诱杀的效果相对较差,对环境影响较小,但对美国白蛾数量控制可能有限。飞机喷药是防治美国白蛾的最为有效和可靠的方法。指出了根据实际情况选择合适的防治方式,并结合其他综合管理措施,如生物控制等,可以更好地控制美国白蛾的数量。 展开更多
关键词 美国白蛾 防治方法 飞机喷药 地面喷药 杀虫灯诱杀
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