Brown planthopper是什么
WebThe brown planthopper (Nilaparvata lugens Stål) is the most economica … Hundreds of insect genome sequences have been reported; however, most sequencing projects have …
Brown planthopper是什么
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WebJun 28, 2024 · Brown planthopper (BPH), Nilaparvata lugens (Stål), is one of the most destructive pests of rice accounting for 52% of annual yield loss. The breakdown of … A planthopper is any insect in the infraorder Fulgoromorpha, in the suborder Auchenorrhyncha, a group exceeding 12,500 described species worldwide. The name comes from their remarkable resemblance to leaves and other plants of their environment and that they often "hop" for quick transportation in a similar way to that of grasshoppers. However, planthoppers generally walk very slowl…
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, … WebMar 27, 2024 · Brown planthopper (BPH) has become the most devastating insect pests of rice and a serious threat to rice production. To combat newly occurring virulent BPH …
WebSep 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 … 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 …
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 …
WebMar 11, 2014 · Recently, planthoppers outbreaks have intensified across Asia resulting in heavy rice yield losses. The problem has been widely reported as being induced by insecticides while other factors such as global warming that could be potential drivers have been neglected. Here, we speculate that global warming may increase outbreak risk of … reach barnetWebJul 31, 2024 · Brown planthopper (BPH) is a serious pest of rice and has tremendous impact especially in Asia-Pacific region. how to spot a gaslighterWebPlanthoppers are small jumping insects that often have unusually angled or pointed head shapes. Their antennae are attached to their faces below the eyes, on the sides of the head. The two basal segments of each antenna … reach baseWebMay 17, 2024 · Abstract. Among the rice insects, brown planthopper (BPH), (Nilaparvata lugens Stål) is a monophagous migratory phloem-sucking insect causing severe loss in Asiatic countries.High nitrogen and willful insecticide application coupled with an increase in temperature have created havoc by this pest during the last few years in certain parts of … how to spot a genuine gucci handbagWebOct 1, 2024 · The brown planthopper, Nilaparvata lugens, is an economically important pest on rice in Asia. Chemical control is still the most efficient primary way for rice planthopper control. However, due to ... reach basesWebNov 28, 2003 · The brown planthopper (Hemiptera: Delphacidae), a monophagous piercing-sucking herbivore, is one of the most important insect pests of rice (Oryza sativa … reach baseball gloveThe 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 spot a gerund