Tomato wilt and dead seedlings occur heavier, and the disease is mainly caused by tomato wilt. Currently, tomato wilt is the main soil-borne disease of tomato, which occurs in the flowering stage and dies in the fruiting stage. Linyi Fertilizer Network Copyright
Linyi Fertilizer Network Copyright
Spreading from the lower leaves, sometimes the leaves on one side are yellow and the other side is normal green. When the disease is serious, the whole leaves die, but they do not fall off. The leaves are yellowish brown, and when the soil is wet, the stems produce pink mold on the ground. The vascular bundle of the stem is yellow-brown, and no milky white mucus flows out, which is different from the bacterial wilt. The current control methods: 1. The sporadic disease plants are found to be removed in time, and filled with lime to cover the soil. 2. Spray with 54% of the moldy Fumex WP 700 times solution; or 70% of the sodium sulfonate WP 500 times solution; for example, watering the roots, each plant 300~500 ml, depending on the condition once every 5 days. Linyi Fertilizer Network Copyright
Linyi Fertilizer Network Copyright
Pre-planting prevention: 1. Apply more than three years of rotation, apply decomposed organic fertilizer or bio-active organic fertilizer, and increase the application of phosphorus and potassium fertilizer to improve the disease resistance of the plant. 2. Seed treatment. Soak seeds with 52-degree warm water for 30 minutes before sowing; or seed with 30% sodium sulfonate-soluble powder with a seed weight of 0.3%. 3. Seedbed disinfection. For every square meter of bed surface soil, use 105% of Fufu wettable powder 10g, add 5kg of dry soil and mix well, 1/3 of the soil is sprinkled on the bed and then sown, and then the rest of the soil is covered on the seed. It is recommended to raise seedlings for seedlings and seedlings for seedlings. For each cubic nutrient soil, use 150% of 30% chlorpyrifos or 200 grams of sodium sulfonate. Mix well and mix with nutrient seedlings. Linyi Fertilizer Network Copyright
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