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Dissertations / Theses on the topic 'Planthopper'

Author: Grafiati

Published: 4 June 2021

Last updated: 26 July 2025

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1

Ghorpade, S. A. "Enzyme activity and associated insecticide resistance in the rice brown planthopper Nilaparvata lugens (Stal)." Thesis, University of Newcastle Upon Tyne, 1986. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.373900.

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2

Harkin, Claire. "Ecological interactions of an invading insect : the planthopper Prokelisia marginata." Thesis, University of Sussex, 2016. http://sro.sussex.ac.uk/id/eprint/65533/.

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The planthopper Prokelisia marginata Van Duzee is native to the eastern coast of North America, where densities on its foodplant, the cordgrass Spartina alterniflora, frequently exceed several thousand per square metre. It has little impact on its host plant in its native range where both species have co-evolved, however where the plant has been introduced and has had no recent exposure to the planthopper, it has a major impact and has been trialled as a biological control agent. P. marginata was recorded for the first time in Britain in 2008, where it feeds primarily on the widespread S. angl

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3

Baqui, M. A. "Resistance of rice varieties to the brown planthopper Nilaparvata lugens (Stal)." Thesis, University of Newcastle Upon Tyne, 1986. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.370875.

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4

Piyaphongkul, Jiranan. "Effects of thermal stress on the brown planthopper Nilaparvata lugens (Stal)." Thesis, University of Birmingham, 2013. http://etheses.bham.ac.uk//id/eprint/4097/.

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This study investigated the effects of heat stress on the survival, mobility, acclimation ability, development, reproduction and feeding behaviour of the brown planthopper Nilaparvata lugens. The critical information derived from the heat tolerance studies indicate that some first instar nymphs become immobilized by heat stress at around 30°C and among the more heat tolerant adult stage, no insects were capable of coordinated movement at 38°C. There was no recovery after entry into heat coma, at temperatures around 38°C for nymphs and 42-43°C for adults. At 41.8° and 42.5oC respectively, appro

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5

Crummay, Frances Anne. "Mesoscale atmospheric influences on the distribution and migration of the rice brown planthopper." Thesis, Queen Mary, University of London, 1994. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.248708.

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6

Dittrich, Alex D. K. "The ecology of Ribautodelphax imitans (Ribaut.): a seldom recorded planthopper in the UK." Thesis, Anglia Ruskin University, 2016. https://arro.anglia.ac.uk/id/eprint/702728/1/Dittrich_2016.pdf.

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This study is primarily concerned with the ecology of Ribautodelphax imitans (Ribaut.), a seldom recorded, data deficient and rare species of planthopper (Delphacidae: Auchenorrhyncha: Hemiptera) in the UK. Although it dealt with the ecology of this one species, it explored its community, related species and how they respond to habitat, host plants, and each other. Firstly this project looked at the community position of R. imitans over a single season, clarifying its numerical abundance related to other species in its community. The lifecycles of many species could be modelled over the

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7

Dittrich, Alex D. K. "The ecology of Ribautodelphax imitans (Ribaut.) : a seldom recorded planthopper in the UK." Thesis, Anglia Ruskin University, 2016. http://arro.anglia.ac.uk/702728/.

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This study is primarily concerned with the ecology of Ribautodelphax imitans (Ribaut.), a seldom recorded, data deficient and rare species of planthopper (Delphacidae: Auchenorrhyncha: Hemiptera) in the UK. Although it dealt with the ecology of this one species, it explored its community, related species and how they respond to habitat, host plants, and each other. Firstly this project looked at the community position of R. imitans over a single season, clarifying its numerical abundance related to other species in its community. The lifecycles of many species could be modelled over the year;

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8

Uawisetwathana, Umaporn. "Metabolomics analysis of brown planthopper (BPH)-resistant traits in Thai Jasmine rice (Oryza sativa)." Thesis, Queen's University Belfast, 2015. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.696327.

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A metabolomics platform technology was used to study known traits of Thai rice, brown planthopper (BPH) resistance trait. Three rice varieties with different BPH resistance capacity, namely BPH-susceptible KD cultivar, BPH-resistant IL7 containing Bph 3 and BPH-resistant+ IL308 containing Bph 3 and terpene synthase (TPS) genes, were analyzed to identify differential metabolomics profiles between them, with and without BPH infestation at different time points (Days 1, 2, 3, 4 and 8). Metabolic profiles were obtained using the analytical methods including Proton Nuclear Magnetic Resonance (1 H N

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9

Preap, Visarto. "Localised outbreaks of brown planthopper (Nilaparvata lugens Stål) in Cambodian rice ecosystems : possible contributing factors /." [St. Lucia, Qld.], 2005. http://www.library.uq.edu.au/pdfserve.php?image=thesisabs/absthe18971.pdf.

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10

Kumarasinghe, Nimal Chandrakantha. "Host plant resistance in sugarcane Saccharum officinarum to the lophophid planthopper Pyrilla perpusilla Walker (Homoptera: Lophopidae)." Thesis, University of Southampton, 1994. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.295250.

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11

Laura, Liliana Abril Garcia. "Population Dynamics of the Brown Planthopper Nilaparvata lugens (Stål) in Rice Fields in Thailand and Its Potential Applications to Pest Management." Kyoto University, 2018. http://hdl.handle.net/2433/232366.

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Kyoto University (京都大学)<br>0048<br>新制・課程博士<br>博士(農学)<br>甲第21165号<br>農博第2291号<br>新制||農||1060(附属図書館)<br>学位論文||H30||N5139(農学部図書室)<br>京都大学大学院農学研究科地域環境科学専攻<br>(主査)教授縄田栄治, 教授舟川晋也, 教授松浦健二<br>学位規則第4条第1項該当

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12

Price, Daniel Richard Glenfield. "Receptors of peptide hormones in the gut of rice brown planthopper (Nilaparvata lugens) as targets for novel insecticides." Thesis, Durham University, 2004. http://etheses.dur.ac.uk/3022/.

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The rice brown planthopper, Nilaparvata lugens, is a pest of rice where it can be responsible for single season crop losses of up to 38% (IRRI statistic). Due to the absence of an effective Bacillus thuringiensis (Bt) toxin against these insect pests current control methods are reliant on synthetic insecticides. However, these broad acting insecticides can be harmful to beneficial insects, and resistance to these synthetic insecticides amongst N.lugens populations is now common. Therefore, other novel approaches are needed for the control of this rice pest species, which is addressed in this t

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13

Begum, Musammat Nazema. "Varietal resistance to insects in rice : influence on feeding and detoxifying enzymes in the brown planthopper, Nilaparvata Lugens Stal." Thesis, University of Newcastle Upon Tyne, 1998. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.245081.

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14

Samuels, Kevin David Ziege. "Genetical studies and strain selection in Metarhizium anisopliae (Metschnikoff) Sorokin for the control of Nilaparvata lugens (Stal), the brown planthopper of rice." Thesis, King's College London (University of London), 1986. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.263855.

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15

Jones, Philippa Louise. "Molecular studies on Nilaparvata." Thesis, Cardiff University, 1994. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.286111.

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16

Nugaliyadde, Lionel. "Factors associated with the resistance of rice (Oryza sativa L.) to Nilaparvata lugens (StaÌŠl)." Thesis, University of Newcastle Upon Tyne, 1994. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.387408.

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17

Garrood, W. T. "Investigating the breakdown of chemical control in brown planthoppers from Asia." Thesis, University of Liverpool, 2018. http://livrepository.liverpool.ac.uk/3016757/.

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18

Ridley, Andrew. "A study of planthoppers as vectors of Fiji disease virus of sugarcane /." [St. Lucia, Qld.], 2005. http://www.library.uq.edu.au/pdfserve.php?image=thesisabs/absthe19340.pdf.

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19

Lam, Bao Hoai. "Sensors and wireless networks for monitoring climate and biology in a tropical region of intensive agriculture : methods, tools and applications to the case of the Mekong Delta of Vietnam." Thesis, Brest, 2018. http://www.theses.fr/2018BRES0006/document.

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Les changements climatiques ont des impacts considérables sur le temps, les océans et les rivages, la vie sauvage. Ils amènent des problèmes désormais considérés comme majeurs par les gouvernements et organisations internationales. Ces efforts ont fourni un cadre à cette thèse, qui propose de procéder en boucle fermée de l’observation d’insectes ravageurs, avec des centaines de capteurs en réseau ("light traps"), au système d’information, et enfin à des décisions de lutte, manuelles ou automatiques. Le point d’appui pratique est la conception d’un système de comptage d’insectes proliférant dan

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20

Kao, Liang-Wei, and 高良維. "Machine Learning Based Rice Planthopper Detection." Thesis, 2017. http://ndltd.ncl.edu.tw/handle/db6fbu.

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碩士<br>國立交通大學<br>電子研究所<br>106<br>Rice Planthoppers are worldwide pests. They can damage plants by drawing juice, and also spread rice stripe blight. In this thesis, we build a rice planthopper data set and develop the classifier using machine learning techniques in order to improve the rice planthopper de-tection rate. The system consists of four main modules: image pre-processing, candidate region detection, candidate region feature extraction, and classification. In the classification module, we test and compare with multiple classifiers, such as Support Vector Machine, Neural Net-work, Adabo

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21

Lee, Ting-Yu, and 李庭瑜. "Detection of Rice Planthopper by Image Processing in Rice Field." Thesis, 2017. http://ndltd.ncl.edu.tw/handle/s4as6v.

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碩士<br>國立中央大學<br>電機工程學系<br>105<br>Rice Planthopper (RPH) infestation in paddy field is a serious disaster in Asia almost every year, particularly Southeast Asia. It is still suffered RPHs in Taiwan. RPHs are very small and spread easily. Since control RPHs growth is effective to prevent RPH infestation, it is important for farmer to sprinkle pesticides at right time before RPH growth. Preprocess image that complex field scene is helpful to find RPH. First, get rectangle region of interest (ROI) in HD image. We focus on the rice stem in the middle of image and remove the both side in the image.

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22

Hui, Liu Ya, and 劉雅慧. "Purification and characterization of acetylcholinesterase of brown planthopper, Nilaparvata lugens (stal)." Thesis, 1993. http://ndltd.ncl.edu.tw/handle/12663393437500035035.

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碩士<br>國立中興大學<br>昆蟲學系<br>81<br>Less than 10% of the acetylcholinesterase (AChE) activity was detected in the soluble fraction (100,000 g supernatant) when adults of the brown plant- hopper, Nilaparvata lugens (St l), were homogenized and fractionated by centrifugation. Digestion of the homo- genate with phospholipase C released some AChE from the membrances and 68% of the activity could be found in the soluble fraction. The AChE activity sequentially extracted from BPH with different buffer

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23

You, Su-Juan, and 尤淑娟. "Screening and Cloning of Brown Planthopper Resisitance Markers in Rice (Oriza sativa)." Thesis, 1996. http://ndltd.ncl.edu.tw/handle/24614648899582359781.

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碩士<br>國立中興大學<br>農藝學研究所<br>84<br>Brown planthopper (BPH) is one of the major insects that damage rice in most production areas. Breeding varieties with BPH resistance (BPH-R) is considered to be the best strategy for pest control in rice production. For this purpose, mutagenesis was conducted to obtain mutants with BPH resistance. Four mutants, TM6, D5, D6, and D7, derived from TNG67 (BPH susceptible,BPH-S) using sodium azide, were resistant to BPH. Genetics of this induced BPH resistance was studied by cr

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24

Lai, Sin-Hong, and 賴信宏. "Population Fluctuation and Forecasting Model for Brown Planthopper on Rice Crops in Taiwan." Thesis, 2015. http://ndltd.ncl.edu.tw/handle/16460699195691460884.

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博士<br>國立中興大學<br>農藝學系所<br>103<br>The brown planthopper (Nilaparvata lugens, Stal) is an important pest insect which affects rice production in Taiwan. Incorrect control strategies will reduce the quality and yield of rice crops. The most commonly used traps to monitor the migration of brown planthoppers in Taiwan are light traps and air borne net traps placed in the rice field. Other sampling methods include visual counting and sweep net counts in monitored fields after transplanting. The population abundance is an important issue because it affects the rice yielding loss. As usual, data on the

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25

Huang, Shou-Horng, and 黃守宏. "New approaches to the integrated management of the rice planthopper guild in Taiwan." Thesis, 2013. http://ndltd.ncl.edu.tw/handle/46099406950828207105.

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博士<br>國立臺灣大學<br>昆蟲學研究所<br>101<br>The brown planthopper (Nilaparvata lugens (Stal)), white-backed planthopper (Sogatella furcifera (Horvath)) and smaller brown planthopper (Laodelphax striatellus (Fallen)) are the most important sucking pests of rice (Oryza sativa) in East Asia. Evidence showed that the overwintering populations of both brown planthopper and whitebacked planthopper in Taiwan were very low. The major source for causing serious damage to the rice crop was the immigrants from overseas. The characters of the immigrants, including the relative numbers of the pest species, biotypes a

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26

LIAO, MIAO-ZHEN, and 廖妙珍. "Toxic effects of buprofezin on the small brown planthopper, Laodelphax striatellus (Falln)(Hoomoptera : Delphacidat)." Thesis, 1991. http://ndltd.ncl.edu.tw/handle/89757356065153560498.

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27

李平全. "Pathology of the smaller brown planthopper laodelphax striatellus, infected with metarhizium anisopliae var. anisopliae." Thesis, 1987. http://ndltd.ncl.edu.tw/handle/23707537224923861885.

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28

Tsau, Hwai-Wen, and 曹懷文. "Characterization of Molecular Markers and Downstream Genes on a Brown Planthopper Resistant Rice Line KN210." Thesis, 2016. http://ndltd.ncl.edu.tw/handle/92813949991978610310.

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碩士<br>國立中興大學<br>生物科技學研究所<br>104<br>The brown planthopper (BPH, Nilaparvata lugens (Stål)) is a destructive monophagous insect of rice (Oryza sativa L.). BPH causes severe yield losses due to direct sap-sucking from the rice phloem and indirect damage by transmitting viral diseases. Breeding of BPH-resistant crops is an economical and environmentally friendly strategy for pest control. Although more than 60 BPH resistance alleles have been identified from landrace cultivars or wild Oryza species and been used to different extent in rice breeding/production, however, only three BPH-resistance ge

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Cheng, Dor-Jih, and 鄭朵智. "Transovarian Transmission of the Yeast-like Symbiote and Vitellogenin Transport in the Brown Planthopper, Nilaparvata lugens." Thesis, 1997. http://ndltd.ncl.edu.tw/handle/29276207831808063286.

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博士<br>國立中興大學<br>昆蟲學系<br>85<br>Transovarian transmission of the yeast-like symbiote and vitellogenin transport in the brown planthopper, Nilaparvata lugens.Dor-Jih Cheng Transovarian transmission of the yeast- like symbiote (YLS) in the brown planthopper, Nilaparvata lugens, was studied using histological techniques. YLS was not found in testes and spermathecae in mated females. The ovaries of virgin females had only few eggs containing YLS. Therefore the sperm is not involved in YLS tra

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30

Chou, Chi-Ying, and 周琪英. "Screening of Brown Planthopper Resistance-related Genes from Rice (Oryza sativa L.) Mutants by Differential Diaplay." Thesis, 2002. http://ndltd.ncl.edu.tw/handle/99111996176073592772.

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碩士<br>國立中興大學<br>農藝學系<br>91<br>Brown planthopper (Nilaparvata lugens Stal., BPH) usually cause serious damage in most rice production areas, breeding for resistant varieties is the best solution for the pest control. Two mutants, TM6 and TM268, derived from the BPH susceptible variety TNG67 by sodium azide (NaN3) mutagenesis showed BPH resistance and controlled by a single dominant gene. To clone the genes responsible for the BPH resistance in mutants, differential display (DDRT-PCR) strategy was applied to screen the differential expressed genes by comparing the BPH resistant mutants TM6 and T

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31

Namsuwat, Ladawan, and 翁嬡珠. "The insecticide resistance of field and laboratory selected strains of brown planthopper (Nilaparvata lugens) in Taiwan." Thesis, 2018. http://ndltd.ncl.edu.tw/handle/5rr3sp.

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碩士<br>國立中興大學<br>昆蟲學系所<br>107<br>The brown planthopper, Nilaparvata lugens (Stål) (Hemiptera: Delphacidae), is the most destructive pest on rice field crops and is an importantly economic pest in Asian region. This insect pest has developed resistance to a variety of insecticides, such as organophosphates, carbamates and pyrethroids. In order to investigate the resistance of N. lugens to currently used insecticides, ten field populations of N. lugens collected from difference areas of Taiwan from 2016 to 2017 were tested. In addition, chlorpyrifos-, imidacloprid-, and fipronil-selected populati

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32

Chen, Wan-Hsin, and 陳婉心. "Gene expression and chemical composition analysis of rice downstream from brown planthopper resistance locus Bph31(t)." Thesis, 2019. http://ndltd.ncl.edu.tw/cgi-bin/gs32/gsweb.cgi/login?o=dnclcdr&s=id=%22107NCHU5111032%22.&searchmode=basic.

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碩士<br>國立中興大學<br>生物科技學研究所<br>107<br>Brown planthopper (BPH, Nilaparvata lugens Stål) is a monophagous destructive pest of rice, the staple food in Asia. Accompanied by global warming, the BPH invades northward, so prevention BPH infestation has become an important issue in Taiwan, China and Japan. Breeding and usage of the BPH-resistant rice is the most effective and environmental friendly strategy. The BPH-resistant rice used in this study is the TNG71-Bph31(t) line (KN210) provided by the Taiwan Agricultural Research Institute (TARI), which is a near isogenic line (NIL) of a susceptible rice

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Song, Yi-Hsuan, and 宋怡萱. "Fine mapping and resistance characterization of Bph31(t), a brown planthopper resistance locus from wild rice Oryza nivara." Thesis, 2017. http://ndltd.ncl.edu.tw/handle/6bmup5.

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Ke, Ting-Jyun, and 柯亭君. "Resistance characterization and fine mapping of Bph31(t), a brown planthopper resistance locus from wild rice Oryza nivara." Thesis, 2018. http://ndltd.ncl.edu.tw/handle/w5cek2.

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碩士<br>國立中興大學<br>生物科技學研究所<br>106<br>Brown planthopper (BPH) is the most devastating insect pest in rice-growing areas and cause enormous yield loss. BPH is a monophagous phloem feeder on rice which removes a significant amount of photoassimilates and causes its wilting. Breeding and planting of BPH-resistance rice lines are the most sustainable and environmental friendly ways to cope with BPH infestation. As the BPH-resistance genes are mainly exist in wild rice, Taiwan Agricultural Research Institute (TARI) had introduced a single dominant BPH-resistant locus from the wild rice O. nivara into

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Anderson, Kylie Lucille. "Invasion potential of the island sugarcane planthopper, Eumetopina flavipes (Hemiptera: Delphacidae): vector of Ramu stunt disease of sugarcane." Thesis, 2011. https://researchonline.jcu.edu.au/23729/2/02whole.pdf.

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The island sugarcane planthopper, Eumetopina flavipes Muir (Hemiptera: Delphacidae) is the only known vector for Ramu stunt disease of sugarcane. Ramu stunt disease appears confined to PNG, but disease-free populations of E. flavipes are known to occur throughout the Torres Strait island archipelago and on the northern peninsula area of Cape York, Queensland, Australia. The presence of these populations represents a significant threat to the commercial production of sugarcane in Australia, which occurs approximately 700 km south of the E. flavipes populations on the northern peninsula area of

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ZHANG, JIAN-ZHONG, and 張建中. "Studies on protein analyses and in vitro culture of intracellular yeast-like symbiote in the brown planthopper, Nilaparvata lugens." Thesis, 1990. http://ndltd.ncl.edu.tw/handle/30937518831247931528.

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ZHENG, DUO-ZHI, and 鄭朵智. "Electron microscopic observations on yeast-like symiote in the brown planthopper, nilaparvata lugens, and its physiological functions in insect host." Thesis, 1992. http://ndltd.ncl.edu.tw/handle/87646672357886445674.

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Huang, Huei-Jiuan, and 黃惠娟. "Mapping Genes Resistant to Blast (Pyricularia grisea Sacc.) and Brown Planthopper (Nilaparvata lugens Stal.) in Japonica Rice (Oryza sativa L.)." Thesis, 2002. http://ndltd.ncl.edu.tw/handle/01728265236517543645.

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博士<br>國立臺灣大學<br>農藝學研究所<br>91<br>The rice breeding programs in Taiwan for developing high quality varieties with resistance to disease and insect usually use japonica rice as parents. To facilitate the breeding goals, the molecular linkage maps based on japonica × japonica crosses was developed. In this study, a molecular linkage map of japonica rice was constructed by 160 F2-derivided lines of TNG69 × Koshihikari population. It consisted of 135 DNA markers, totally spanning 1,350cM with an average interval of 14.67cM. According to the genotypic frequencies of molecular markers, segregation dis

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Chiu, Tai-Yuan, and 邱太淵. "Analysis of antixenosis resistant mechanism of Bph31(t), a brown planthopper resistant gene locus from the wild rice Oryza nivara." Thesis, 2019. http://ndltd.ncl.edu.tw/cgi-bin/gs32/gsweb.cgi/login?o=dnclcdr&s=id=%22107NCHU5111027%22.&searchmode=basic.

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碩士<br>國立中興大學<br>生物科技學研究所<br>107<br>Rice is the staple food for more than 3.5 billion people, mainly in Asia. However, rice is often invaded by the piercing-sucking insect, brown planthopper (Nilaparvata lugens Stål., BPH), which bring devastating damage to rice. To prevent yield losses, Taiwan Agricultural Research Institute (TARI) had introduced a single dominant BPH-resistant allele from the wild rice O. nivara (IRGC 102165, W33) into the local elite cultivar TNG71 (KN188) to develop its near-isogenic line, KN210, via a 10-year breeding process. Generally, plant resistance can be classified

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Lai, Ching-Ting, and 賴慶庭. "Assessment of toxicity, synergistic effects and field control efficacy of the binary mixtures of five commercial insecticides to the brown planthopper Nilaparvata lugens." Thesis, 2016. http://ndltd.ncl.edu.tw/handle/37515338498986504143.

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碩士<br>國立屏東科技大學<br>植物醫學系所<br>104<br>The brown Planthopper (BPH), Nilaparvata lugens is a major pest of rice production in tropical Asia. In many countries, BPH causes serious economic loss on rice yield by sucking rice sap and transmitting various of rice virus diseases. The appearance of insecticide resistance challenges the control of BPH in field. The development of new insecticide is expensive and time-consuming. Thus, the precise and proper use of existing compounds becomes an important issue in resistance management of this pest. Pesticide rotation is an effective approach in resistance m

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Lai, Chi-Fang, and 賴啟芳. "Relationship between the yeast-like symbiote and planthoppers (Hemiptera: Delphacidae) based on uricase gene sequences and expression." Thesis, 2008. http://ndltd.ncl.edu.tw/handle/00734128866709049949.

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博士<br>國立中興大學<br>昆蟲學系所<br>96<br>Investigations on taxonomic position and phylogeny of the yeast-like symbiote (YLS) in Delphacidae (Insecta: Hemiptera) were carried out using paraffin sectioning and analyses of uricase gene sequences in the brown planthopper, Nilaparvata lugens. Uricase gene was known to be present in the YLS of the planthoppers (Hemiptera: Delphacidae). Based on uricase gene sequences, the YLS of Delphacidae belongs to Ascomycota in Fungi, and forms a monophylic group. By phylogenetic analysis, coevolutionary relationship between YLS and Delphacidae hosts was suggested, wherea

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42

Rothenbücher, Judith. "The Impact of Mowing and Flooding on the Diversity of Arthropods in Floodplain Grassland Habitats of the Lower Oder Valley National Park, Germany." Doctoral thesis, 2005. http://hdl.handle.net/11858/00-1735-0000-0006-B5FE-2.

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Platner, Christian Karl-Johannes. "Ameisen als Schlüsseltiergruppe in einem Grasland." Doctoral thesis, 2004. http://hdl.handle.net/11858/00-1735-0000-0006-B6B3-2.

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