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Population Dynamic and Biological Characteristics of the gypsy moth Lymantria dispar （Lepidoptera： Lymantriidae） in West-Siberian Geographic

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Journal of Agricultural Science and Technology(B) 2011年第5期1卷 767-772页

作者： G. Hajizadeh M. Reza Kavosi Yu. I. Gninenko Department of Forest Ecology Faculty of Forestry Gorgan University of Agricultural Sciences and Natural Resources Beheshti St. 386 Gorgan Golestan Iran Russian Research Institute for Silviculture and Mechanization of Forestry （VNIILM） 15 Institutskaya St Pushkino 141200 Russia

gypsy moth, Lymantria dispar （L.） is one of the most widespread defoliators of deciduous and larch forests in Kazakhstan. Preferred host plants, flying capacity of females and neonate caterpillars, preferred places for egg laying, major factors of mortality and other characteristics vary considerably between different populations of the pest. According to several year researches on gypsy moth, in Kazakhstan, the main biological characteristics of this pest in the regions were investigated. Results of research showed that gypsy moth exists in central and northern of theses regions. From biological and geographical aspects, gypsy moth which there is in Kazakhstan is close to the same species from Siberia western regions. The pest lays on the different heights of trees trunk. It was found that the number of eggs in each egg mass and egg masses laid by the pest are different. The lack of egg eaters and the over- reproduction of the pest at the natural conditions have resulted in the development of bacterial and viral diseases in the populations of this pest from the regions of Kazakhstan to Siberia west.

关键词： gypsy moth Lymantria dispar population dynamic biological characteristics egg masses West-Siberian Geographic

Primary Host Tree Species of the gypsy moth Lymantria dispar （Lepidoptera： Lymantriidae）in Hyrcanian Forests

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Journal of Agricultural Science and Technology(B) 2011年第3期1卷 342-346页

作者： G. Hajizadeh M. Reza-Kavosi Department of Forest Ecology Faculty of Forestry Gorgan University of Agricultural Sciences ＆ Natural Resources Beheshti St. 386 Gorgan Golestan lran

Invasions by exotic insects and diseases are one of the most important threats to the stability and productivity of forest ecosystems around the world. Lymantria dispar （Lepidoptera： Lymantriidae） in Iran was observed for the first time in 1937 by Jalal Afshar in oak forests of the Guilan state region. Since its introduction, gypsy moth has spread to the northern, western and south-western regions of Iran. The largest outbreaks of gypsy moth occurred in the Talesh Oak forests of the Hyrcanian zone in 1975. The gypsy moth is a highly polyphagous folivore species that feeds on over 300 species of woody plants. Among its most preferred hosts are oaks and aspens. Some trees are resistant to the gypsy moth including honey locust, black locust, silver maple, green ash, dogwood, sycamore, horse chestnut, firs, and tulip trees. Defoliation during severe outbreaks alters the appearance of forest habitats and leads to tree mortality and changes in stand composition. This study was conducted during 2008 and 2009 in an effort to determine the primary host tree species that the gypsy moth infests in the Hyrcanian forests of lran. For that purpose all egg masses in the area were counted and conclusively significant differences in defoliation levels among tree species were found. The primary host tree species of gypsy moth in Iran was Persian ironweed, Parrotia persica.

关键词： gypsy moth Lymantria dispar host tree species Parrotia persica persian ironweed hyrcanian forests.

用地理信息系统实现舞毒蛾危害的预测(英文)

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Insect Science 1995年第1期2卷 83-94页

作者：周国法,AndrewM.Liebhold 北京大学分校数学与计算机系 USDA林务局东北林业试验站北京100083USDA林务局东北林业试验站 WV26505 USA WV26505 USA

本文提出了预测舞毒蛾危害造成树木失叶的逻辑斯蒂回归模型。数据调查是以100m×100m为一格的小尺度下进行的,回归自变量是卵密度、雄蛾密度、前一年的失叶情况和到前一年最近的失叶格的距离,预测结果是一个失叶概率的分布图。我们用文... 详细信息

本文提出了预测舞毒蛾危害造成树木失叶的逻辑斯蒂回归模型。数据调查是以100m×100m为一格的小尺度下进行的,回归自变量是卵密度、雄蛾密度、前一年的失叶情况和到前一年最近的失叶格的距离,预测结果是一个失叶概率的分布图。我们用文中模型模拟了目前舞毒蛾综合管理中的防治决策过程,结果表明本文提出的模型在应用于实际的管理决策中是很合适的。

关键词： gypsy moth sampling modeling decision-making.

Asymmetric Synthesis of Both Enantiomers of Disparlure

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Chinese Journal of Chemistry 2012年第1期30卷 23-28页

作者：王志刚郑剑峰黄培强 Department of Chemistry and Key Laboratory for Chemical Biology of Fujian Provinee College of Chemistry and Chemical EngineeringXiamen UniversityXiamenFujian 361005China

Starting from propargyl alcohol （12）, and on the basis of Zhou＇s modified Sharpless asymmetric epoxidation, the sex pheromone of the gypsy moth, disparlure （＋）-8 and its enantiomer （-）-8 have been synthesized, each in six steps, with overall yields of 29% for （＋）-8 and 27% for （-）-8 （ee〉98%）. The use of the sequential coupling tactic renders the method flexible, which is applicable to the synthesis of other cis-epoxy pheromones.

关键词： gypsy moth pheromones Sharpless asymmetric epoxidation asymmetric synthesis epoxides

Molecular cloning, characterization, and antioxidant function of catalase in Lymantria dispar asiatic (Lepidoptera: Lymantriidae) under avermectin stress

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Journal of Forestry Research 2020年第6期31卷 2563-2570页

作者： Jianyong Zeng Bowen Zhang Thi Minh Dien Vuong Tingting Zhang Jing Yang Guocai Zhang School of Forest Northeast Forestry UniversityHarbin 150040People’s Republic of China Vietnam Academy of Agricultural Sciences Hanoi 100803Vietnam

The critical antioxidant catalase(CAT)breaks down hydrogen peroxide induced by environmental *** we cloned full length catalase cDNA from Lymantria dispar asiatic(LdCAT).Bioinformatic analyses showed that open reading frames of LdCAT contains 1524 bp,encoding 507 amino acids with molecular weight of 126.99 kDa,theoretical pI of 5.00,aliphatic index of 29.92,grand average of hydropathicity of 0.764,and instability index(II)of *** BLAST and multiple sequence alignment indicated that LdCAT had high identity with CAT from other insects,especially *** a phylogenetic analysis,LdCAT was most similar to CAT from Spodoptera litura and *** realtime polymerase chain reaction showed that LdCAT transcripts in all instar larvae and the five tissues tested,verifying the ubiquity of LdCAT in ***,LdCAT of third instar larvae was significantly upregulated after they fed on avermectin at sublethal and LC10 *** highest relative transcript levels were found 2 h after an avermectin spray at LC90,and in the cuticula,rather than heads,fat bodies,malpighian tubes,and midguts after a spray avermectin at a sublethal *** expression level of LdCAT under pesticide stresses here suggested that CAT is an important antioxidant enzyme of *** defensing against pesticide stress and may be a good target for controlling this pest.

关键词： Lymantria dispar asiatic gypsy moth Catalase Molecular cloning Relative expression level Pesticide stress Instar

Insights into the Temporal Gene Expression Pattern in Lymantria dispar Larvae During the Baculovirus Induced Hyperactive Stage

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Virologica Sinica 2018年第4期33卷 345-358页

作者： Upendra Raj Bhattarai Mandira Katuwal Bhattarai Fengjiao Li Dun Wang State Key Laboratory of Crop Stress Biology for Arid Areas Northwest A&F University

Baculoviruses are effective biological control agents for many insect pests. They not only efficiently challenge the host immune system but also make them hyperactive for better virus dispersal. Some investigations have focused on the viral mechanisms for induction of such altered response from the host. However, there are no current studies monitoring changes in gene expression during this altered phenotype in infected larvae. The L. dispar multiple nucleopolyhedrovirus(Ld MNPV) induces hyperactivity in third instar L. dispar larvae at 3-days post infection(dpi), to continued till 6 dpi. The transcriptome profiles of the infected and uninfected larvae at these time points were analyzed to provide new clues on the response of the larvae towards infection during hyperactivity. Gene ontology enrichment analysis revealed, most of the differentially expressed genes(DEGs) were involved in proteolysis, extracellular region, and serine-type endopeptidase activity. Similarly, Kyoto Encyclopedia of Genes and Genome enrichment analysis showed maximum enrichment of 487 genes of the signal transduction category and neuroactive ligand–receptor interaction sub-category with 85 annotated genes. In addition, enrichment map visualization of gene set enrichment analysis showed the coordinated response of neuroactive ligand–receptor interaction genes with other functional gene sets, as an important signal transduction mechanism during the hyperactive stage. Interestingly all the DEGs in neuroactive ligand–receptor interactions were serine proteases, their differential expression during the hyperactive stage correlated with their conceivable involvement in disease progression and the resulting altered phenotype during this period. The outcome provides a basic understanding of L. dispar larval responses to Ld MNPV infection during the hyperactive stage and helps to determine the important host factors involved in this process.

关键词： gypsy moth Lymantria dispar multiple nucleopolyhedrovirus (LdMNPV) Hyperactivity - Gene expression pattern

Extraction optimization of insecticidal compounds from Lysurus mokusin by response surface methodology

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Journal of Forestry Research 2020年第5期31卷 1985-1993页

作者： Liannan Lin Jing Yang Guocai Zhang Xiaobo Zhang Chuanshan Zou Tingyu Wang Jianyong Zeng School of Forestry Northeast Forestry UniversityHarbin 150040People’s Republic of China

We optimized the extraction process of Lysurus mokusin(L.)*** compound(LMIC)using response surface methodology with ultrasonic extraction(UE).The surface morphologies of maceration extract(ME)and UE residues were compared by scanning electron microscopy,and then the activity of LMIC on Lymantria dispar(Asian gypsy moths)larvae was *** showed that the optimal condition of UE was followed by 80 min of extraction time,60%of ethanol concentration and 80 mL g^-1 of liquid–solid *** surface morphologies of UE residue were looser and rougher than ME *** corrected mortalities of LMIC on *** larvae was 59.77%.This result indicated that *** was a good candidate as pesticide for pest management.

关键词： Lysurus mokusin gypsy moth Response surface Extraction process Toxicity test