{
  "wheat": {
    "yellow_rust": {
      "chemical": "Propiconazole 25% EC",
      "dose": "1 ml/L water",
      "timing": "At first sign, repeat after 15 days",
      "ipm_first": "Use resistant varieties HD 3086, DBW 187"
    },
    "brown_rust": {
      "chemical": "Tebuconazole 25.9% EC",
      "dose": "1 ml/L water",
      "timing": "At first sign"
    },
    "powdery_mildew": {
      "chemical": "Sulphur 80% WP",
      "dose": "3 g/L water",
      "timing": "At first sign"
    },
    "aphid": {
      "chemical": "Imidacloprid 17.8% SL",
      "dose": "0.5 ml/L water",
      "timing": "ETL: 20-25 aphids per tiller",
      "ipm_first": "Neem oil 5 ml/L first"
    },
    "termite": {
      "chemical": "Chlorpyrifos 20% EC",
      "dose": "4 L/ha soil drench at sowing",
      "timing": "At sowing only"
    }
  },
  "rice": {
    "blast": {
      "chemical": "Tricyclazole 75% WP",
      "dose": "0.6 g/L water",
      "timing": "At boot leaf stage, repeat after 10 days"
    },
    "brown_planthopper": {
      "chemical": "Buprofezin 25% SC",
      "dose": "1 ml/L water",
      "timing": "ETL: 10 BPH per hill. NEVER use pyrethroids.",
      "ipm_first": "Drain water for 3 days, preserve spiders"
    },
    "sheath_blight": {
      "chemical": "Hexaconazole 5% EC",
      "dose": "2 ml/L water",
      "timing": "At tillering stage"
    },
    "bacterial_blight": {
      "chemical": "Copper oxychloride 50% WP",
      "dose": "3 g/L water + Streptomycin 0.5 g/L",
      "timing": "At first symptom. No curative option — prevention key."
    }
  },
  "cotton": {
    "bollworm": {
      "chemical": "Emamectin Benzoate 5% SG",
      "dose": "0.4 g/L water",
      "timing": "At first instar, use pheromone traps",
      "ipm_first": "Pheromone traps 5/acre, Bacillus thuringiensis 2g/L first"
    },
    "whitefly": {
      "chemical": "Pyriproxyfen 10% EC",
      "dose": "0.75 ml/L water",
      "timing": "ETL: 6-7 adults/leaf. NEVER use pyrethroids (causes resurgence).",
      "ipm_first": "Yellow sticky traps 5/acre, remove infected leaves"
    },
    "aphid": {
      "chemical": "Thiamethoxam 25% WG",
      "dose": "0.3 g/L water",
      "timing": "ETL: 30 aphids/leaf"
    },
    "pink_bollworm": {
      "chemical": "Chlorantraniliprole 18.5% SC",
      "dose": "0.3 ml/L water",
      "timing": "At squaring stage"
    }
  },
  "soybean": {
    "yellow_mosaic": {
      "chemical": "Thiamethoxam 25% WG (control vector whitefly)",
      "dose": "0.3 g/L water",
      "timing": "At first sign — no direct cure, remove infected plants",
      "ipm_first": "Roguing infected plants, use resistant JS 20-29, NRC-86"
    },
    "stem_fly": {
      "chemical": "Triazophos 40% EC",
      "dose": "2 ml/L water",
      "timing": "7-10 days after germination"
    },
    "girdle_beetle": {
      "chemical": "Indoxacarb 15.8% EC",
      "dose": "1 ml/L water",
      "timing": "At pod formation"
    },
    "seed_rate": {
      "kharif": "70-80 kg/ha for row sowing 30cm apart",
      "late_sowing": "Reduce by 10% if sowing after July 20"
    }
  },
  "mustard": {
    "aphid": {
      "chemical": "Dimethoate 30% EC",
      "dose": "1 ml/L water OR Oxydemeton methyl 25% EC 1 ml/L",
      "timing": "ETL: 20-25 aphids per plant",
      "ipm_first": "Spray at 10-day intervals only when ETL reached"
    },
    "alternaria_blight": {
      "chemical": "Iprodione 50% WP",
      "dose": "2 g/L water",
      "timing": "At 50% flowering"
    },
    "white_rust": {
      "chemical": "Metalaxyl 8% + Mancozeb 64% WP (Ridomil)",
      "dose": "2.5 g/L water",
      "timing": "At first sign — white rust IS oomycete (Ridomil works here)"
    }
  },
  "tomato": {
    "early_blight": {
      "chemical": "Mancozeb 75% WP",
      "dose": "2.5 g/L water",
      "timing": "At first sign, repeat every 10 days"
    },
    "fusarium_wilt": {
      "chemical": "Carbendazim 50% WP soil drench",
      "dose": "1 g/L water, drench root zone",
      "timing": "At transplanting and 15 days after. NO FOLIAR SPRAY — soil-borne.",
      "ipm_first": "Trichoderma viride 5 g/kg soil mix, raised beds, disease-free transplants"
    },
    "whitefly_TYLCV": {
      "chemical": "Imidacloprid 17.8% SL",
      "dose": "0.5 ml/L water",
      "timing": "Alternate with Spiromesifen. NEVER use pyrethroids."
    }
  },
  "chilli": {
    "fusarium_wilt": {
      "chemical": "Carbendazim 50% WP soil drench",
      "dose": "1 g/L water, drench 200 ml per plant",
      "timing": "At first sign. NO foliar spray — disease is soil-borne.",
      "ipm_first": "Trichoderma harzianum 5 g/kg at transplanting"
    },
    "anthracnose": {
      "chemical": "Propiconazole 25% EC",
      "dose": "1 ml/L water",
      "timing": "At fruit development"
    },
    "thrips": {
      "chemical": "Spinosad 45% SC",
      "dose": "0.3 ml/L water",
      "timing": "ETL: 25 thrips per plant"
    }
  },
  "potato": {
    "late_blight": {
      "chemical": "Metalaxyl 8% + Mancozeb 64% WP",
      "dose": "2.5 g/L water",
      "timing": "Preventive spray before symptoms — repeat every 7 days in humid weather"
    },
    "early_blight": {
      "chemical": "Mancozeb 75% WP",
      "dose": "2.5 g/L water",
      "timing": "At first sign"
    }
  }
}