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Practical Methods of Using Fertilizers to Control Crop Pests
1. Nitrogen fertilizer: Commonly used nitrogen fertilizers, such as urea, ammonium bicarbonate, and ammonia water, have stimulating, corrosive, and fumigating effects on pests, and are effective for controlling small, low-endurance pests such as aphids and red spider mites. When pests occur, spray a 2% urea solution or 1% ammonium bicarbonate solution on the leaves, once every 7 days, for 2--3...