What is the cause of tomato withering and ulceration?

Recently, some friends have made friends to respond to Xiaobian. Their tomatoes have grown well, but recently there has been a phenomenon of withering and festering. What is going on here? Is there any way to remedy this? Let’s follow the small series. Take a look.

There are two main reasons for the tomato to wither:

One is the root disease.

The second is soil salt damage.

Methods for preventing tomato wilt:

1. For more than three years of rotation, apply decomposed organic fertilizer or bio-active organic fertilizer, and appropriately 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.

Methods for controlling tomato wilt:

1. Spray 50% carbendazim WP 500 times solution, 50% thiophanate-methyl WP 500 times solution, 4% pyrimidine nucleoside antibiotic liquid 200 times solution, high-tech 30% methyl carbaryl 600 times liquid, 10% double effect water agent 200 times liquid, high-tech 41% polypyrimidine 800 times liquid, 50% bactericidal water clearing agent 200 ~ 300 times liquid, 50% argan Copper acid WP WP 400 times solution, 70% sulfonate WP 1500 times solution.

2, spray with 54% of the moldy Fumex WP 700 times solution; or 70% of the sodium sulfonate WP 500 times solution; such as watering the roots, each plant 300 ~ 500 ml, depending on the condition 5 days.

The above is the method to control tomato wilt. To learn more about pesticides, please pay attention to China Pesticide Network.

Pressure Measuring Pipe Fittings

Pressure Measuring Pipe Fittings,Pressure Measuring Fittings,Pressure Tube,Pressure Measuring Tube

Hebei Yuanbai Technology Co., Ltd. , https://www.yuanbaikeji.com