Brown Planthopper (BPH) hotspots in kharif paddy
Hopper burn spots reported in transplanted rice at 50-70 DAT. Dense canopies + urea over-application worsening.
Full IPM management advisory (click to expand)
1. Drain the field for 3-4 days if BPH count >10/hill — kills eggs. 2. Alternate wetting-and-drying is the single biggest agronomic control. 3. Reduce N-urea top-dressing — over-fed rice attracts BPH. 4. If ETL crossed (10-15 hoppers/hill at active tillering, 25-30 at panicle initiation): Pymetrozine 50% WG @ 300g/ha OR Buprofezin 25% SC @ 800ml/ha directed at the base. 5. Conserve mirid bugs + spiders — natural enemies do half the work. 6. Do NOT use synthetic pyrethroids — they cause BPH resurgence.
Source: ICAR-IIRR + AP Dept of Agriculture
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