How to treat garlic red leaf disease?

Garlic is an edible vegetable and a seasoning for daily cooking. Garlic has been planted in many parts of our country, so how to treat garlic red leaf disease?

1. Basic introduction of garlic

Garlic is a plant of Liliaceae and Allium, also known as garlic, Hu garlic, etc., originated in the plateau of western Asia, in China's main producing areas are Henan, Shandong, Jiangsu and other provinces.

Garlic likes a cool growing environment, so it is best to avoid growing garlic in places where the direct sunlight is too long, and choose suitable soil for growing garlic. The best growth of garlic is sandy loam, and the garlic growing in sandy soil is spicy.

Garlic has different requirements for soil moisture. Higher soil moisture is required in the germination stage to promote root sprouting, and not too much water in the seedling stage to prevent the seedlings from overgrowing and promote the longitudinal growth of the root system.

Second, how to treat garlic red leaf disease?

Garlic red leaves may be caused by phosphorus deficiency or diseases such as white rot. If it is phosphorus deficiency, it is necessary to supplement phosphate fertilizer to garlic in time. If white rot causes garlic red leaves, you can use 50% carbendazim wettable powder 500 times dilution spray with an interval of 10 days.

III. Prevention and control of other diseases and insect pests in garlic

1. Leaf blight

Before sowing, use 50% carbendazim wettable powder to mix and soak seeds. When the rate of diseased leaves on the upper part of garlic plant reaches 5%, use 70% chlorothalonil wettable powder 50000600 times dilution spray, 7~10d/ times, use 2 times continuously for 3 times.

2. Rust

At the initial stage of the disease, use 15% rust wettable powder 500x dilution spray, 10~15d/ times, continuous use 2-3 times.

3. Garlic maggot

Seed was mixed with 80% trichlorfon powder and 90% trichlorfon powder 800-1000 times diluted spray to control early larvae. The control method in the peak period of adults is 90% trichlorfon 800-1000 times dilution spray, 7d/ times, continuous use 2-3 times for control.