1. Onion red root disease is a soil-borne disease. It should be rotated in a reasonable manner. Sun-dried soil should be deep-rooted in a timely manner. Disinfectant should be sprayed with a new high-fat membrane 800 times to disinfect the soil; red onion root disease must be dedicated to early detection and early detection. Prevention and treatment, while the roots of diseased plants can not be placed in the field, it is necessary to pile up decomposed or burned.
2. Strengthen management, timely watering, top dressing, weeding, weeding, and timely spraying of new high-fat membrane 800 times to prevent the infection of pathogens and improve the ability of welsh onions to resist natural disasters; and timely spraying on bulrush bulbs As a result, Zhuang Tingling thickens the underground fruit nutrient transport conduits, increases ground fruit vitality, has a smooth fruit surface, is robust, and has high quality and high yields.
3, chemical control, the early onset of pesticide use should be timely, the allocation of pesticides must be used in conjunction with the new high-fat membrane, control pesticide volatile and elegant, anti-rainwater wash, reduce the amount of drug use per acre by half, improve control effectiveness many times.
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