Low leaf nitrogen. Action: Apply Urea Nitrogen Fertilizer (50 kg/Acre) to restore canopy vigor.
Canopy moisture deficit. Action: Increase drip frequency locally to restore hydration.
Weed encroachment. Action: Spot-spray organic herbicide to prevent nutrient drainage.
Weakened canopy. Action: Spray Chlorantraniliprole 18.5% SC (150 ml/ha) preventively.
Precision drone-targeted protection spray targets (worst areas).