Brown plant hopper, Nilaparvata lugens (Stal) (Insecta: Delphacidae) a major insect of rice in India: A review
2022
Kumar, Sushant | Singh, Hem | Patel, Aditya | Patel, Jay Nath | Kant, Chandra
Brown planthopper is one of the important sucking pests of rice and is a monophagous, small or tiny insect with brownish color that feeds on the plant's phloem. Adults and nymphs damage the phloem of rice plants and damage the plant directly by sucking on plant sap and indirectly by transmitting viral diseases like grassy stunt and ragged stunt. BPH caused economic damage by sucking phloem sap, leading to “hopper burn” and severe yield loss. The density of the pest population fluctuates from one season to another. The life cycle of BPH is usually found shorter in warmer regions. BPH increases their population in the presence of high doses of nitrogenic fertilizer. They appear in the field just after 35 days of transplanting of rice and remain in the field until harvesting. Usually about 60 and 85 days after transplanting. Nymphal mortality may be high. Most dispersion of adults from the field occurs near crop maturity. 25 to 75% loss can be seen in the production of rice due to infestation of rice planthoppers.
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