Brown planthopper是什么
WebMay 15, 2009 · A collection of 515 rice landraces originating from Vietnam and China were screened for the reaction to brown planthopper (BPH) infestation. Most of the resistant … WebAug 18, 2024 · The brown planthopper (BPH) is the most devastating insect pest of rice. The rice gene BPH15 confers resistance to BPH. MicroRNAs (miRNAs) regulate a …
Brown planthopper是什么
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WebLarge numbers of the brown planthopper, Nilaparvata lugens, at the base of rice plants at water level. Photo 2. Hopperburn caused by the brown planthopper, Nilaparvata lugens. This occurs when large numbers of insects suck the sap from plants and cause then to wilt and die. Photo 3. Close-up of nymphs (left) and adult (right) brown planthoppers ... WebThe brown planthopper Nilaparvata lugens, white-backed planthopper Sogatella furcifera, and small brown planthopper Laodelphax striatellus are three major insect pests of rice. They are genetically close; however, they differ in several ecological traits such as host range, migration capacity, and in their sex chromosomes.
WebAug 11, 2024 · Thank you for submitting your article "Caterpillar-induced rice volatiles provide enemy-free space for the offspring of the brown planthopper" for consideration by eLife. Your article has been reviewed by three peer reviewers, including Meredith C Schuman as the Reviewing Editor and Reviewer #1, and the evaluation has been … WebDec 3, 2014 · Background The brown planthopper, Nilaparvata lugens, the most destructive pest of rice, is a typical monophagous herbivore that feeds exclusively on rice sap, which migrates over long distances. Outbreaks of it have re-occurred approximately every three years in Asia. It has also been used as a model system for ecological studies …
WebMichael J. Stout, in Integrated Pest Management, 2014 1.6.1 Brown Planthopper Resistance. The brown planthopper is a sucking insect that, under heavy infestations, … WebMay 17, 2024 · Among the rice insects, brown planthopper (BPH), (Nilaparvata lugens Stål) is a monophagous migratory phloem-sucking insect causing severe loss in Asiatic …
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WebApr 30, 2024 · Brown planthopper (BPH; Nilaparvata lugens Stal) is considered the main rice insect pest in Asia. Several BPH-resistant varieties of rice have been bred previously and released for large-scale ... how to draw a groundwater flow netleather sofa cleaner conditionerWebFeb 25, 2024 · The brown planthopper also acts as a bridge or ‘vector’ between rice and two viruses: the rice ragged stunt virus and the rice grassy stunt virus. Vectors help transmit a virus to its host – in this way the … leather sofa chairsWebApr 4, 2024 · We Are Brown & Brown. Our culture is built on integrity, discipline, innovation, and superior capabilities. We look at insurance differently and use our experience, carrier … how to draw a groundThe brown planthopper (BPH), Nilaparvata lugens (Stål) (Hemiptera: Delphacidae) is a planthopper species that feeds on rice plants (Oryza sativa L.). These insects are among the most important pests of rice, which is the major staple crop for about half the world's population. They damage rice directly through feeding … See more The brown planthopper is dimorphic, with fully winged 'macropterous' and truncate-winged 'brachypterous' forms. The macropterous forms are potentially migrants and are responsible for colonizing new … See more BPH infest the rice crop at all stages of plant growth. Due to feeding by both the nymphs and adults at the base of the tillers, plants turn yellow and dry up rapidly. During the … See more Excessive use of urea as nitrogenous fertilizer and insecticides can lead to outbreaks by increasing the fecundity of the brown planthopper, … See more • Ricehoppers – a blog on the latest information and issues relevant to managing rice planthopper problems See more Predators of this insect include the spiders Pardosa pseudoannulata and Araneus inustus. In some cases, BPHs lay eggs in the rice seed beds (also known as rice nurseries) shortly before transplanting, so enter the field in this manner. Differential … See more Research indicates that BPH nymphs are already living at the upper limits of tolerable temperatures. This suggests that climate warming in tropical regions with occasional … See more how to draw a growling wolf headWebEven worse, their bites can even be fatal. Learn how to identify poisonous spiders in Georgia and how to prevent these dangerous spiders from entering and infesting your … leather sofa chair with adjustable lumbarWebSep 16, 2010 · Among the planthoppers of rice, the brown planthopper (BPH) is a major threat to rice production and causes significant yield loss annually. Host-plant resistance is an important strategy to reduce the damage caused by BPH and increase rice productivity. Twenty-one major genes for BPH resistance have been identified by using standard … how to draw a growth curve