Why did the big loofah seedlings die suddenly in autumn?

Hello, 1. Cataplexy at the seedling stage.

It mainly occurs when the seedlings grow 1 2 true leaves, and the disease resistance is weak, first in the base of the stem appears water-soaked patches, and soon the diseased part becomes yellow-brown, shriveled and shrinks into a line, often the cotyledons have not yet withered, and the seedlings suddenly fall suddenly. When the temperature is high, white cotton floc-like hyphae grows near the diseased plant.

3 After 4 true leaves, the stems gradually lignified, and the disease was significantly reduced. Cataplexy is a soil-borne disease caused by the fungus splashing onto the base of the stem of the seedling through irrigation water or rainwater. The temperature of the seedling stage is about 20 and the high temperature conditions are conducive to the onset of disease.

Prevention and control methods: (1) bed soil disinfection, bed soil should be selected disease-free new soil, such as vegetable garden soil, seedbed soil disinfection should be carried out, that is, 7 grams of 50% seed dressing double powder per square meter of seedbed, or 9 grams of 40% pentachloronitrobenzene powder, or 9 grams of 25% methyl frost liquid warm powder plus 1 gram of 70% mancozeb wettable powder 4-5 kg of fine soil mixed well. Before applying the pesticide to the bottom of the seedbed water is sufficient, generally 20 cm deep, take 1 3 mixed medicinal soil and sprinkle it on the furrow surface, and then cover the remaining 2 3 medicinal soil on the top of the seed after sowing, so that the seed is sandwiched in the middle of the medicinal soil, and the control effect is better.

2) Choose high terrain and well-drained land as seedbeds, sow enough water before sowing, try not to water after seedlings emerge, and should not be flooded when watering. (3) Strengthen seedbed management, timely ventilation to reduce humidity, prevent melon seedlings from growing, and cultivate strong seedlings.

2.Thread melon blight.

It is mainly harmful to fruits and stems. The melon near the ground is the first to develop the disease, with dark green round spots at first, dark brown after expansion, sunken diseased parts, and water-stained infiltration around the melon surface, and gray-white mold grows on it. When the humidity is high, the diseased melon quickly softens and rots.

The diseased part of the stem vine is water-stained at first, and then the whole section softens and moistens the rot, and the stems and leaves above the diseased part wilt and die. The pathogen** is spread in seeds or soil through wind, rain and irrigation water. After the plant sits on the melon, there is a lot of rain, the humidity is high, and the disease is serious, the soil is heavy clay, the terrain is low-lying, and the disease is serious.

Control methods: (1) select disease-resistant varieties; (2) Implement crop rotation, select fields with moderate height and convenient drainage and irrigation, deep ploughing in autumn and winter, apply enough rotted organic fertilizer, adopt high ridge cultivation, timely tillage, pruning, and remove diseased fruits and leaves; Mulching with plastic film, increasing phosphorus, potassium fertilizer, etc.; (3) At the beginning of the disease, spray 40% ethylphosphine aluminum 200 times, 75% chlorothalonil 500 times, 80% Dasheng 600 times, 72% DuPont Kelu 800 times, or 69% Ankermanganese zinc 900 times, etc., once every 7 days, 2-3 times.

3.Fertilizer damage, excessive fertilization, resulting in lack of death.

It's possible that the weather is cold and frosty.

What will the loofah die suddenly Drowning is possible, the loofah is very afraid of drowning, and there is oil.

After the loofah bears fruit, it will also die if it is not managed properly. If a relatively high concentration of fertilizer is applied to the soil, it will wilt and die. If the soil is too dry and the moisture content in it is insufficient, it will cause the phenomenon of dead seedlings.

If it is not controlled in time, the loofah will die.

Dear, loofah seedlings are a common plant disease that can be controlled by the following methods:1Proper fertilization:

Apply nitrogen fertilizer in moderation, avoid excessive use of phosphate and potassium fertilizers, and pay attention to the balanced application of trace elements. 2.Controlling the Temperature:

Loofahs like to grow in temperatures of 20 to 30 degrees, so it is important to maintain a suitable temperature when cultivating them and avoid too low or too high temperatures. 3.Watering moderately:

The loofah likes moisture, but it is also afraid of drought, so it is necessary to keep the soil moist during the cultivation process, but do not overwater, otherwise it will lead to poor root growth. 4.Shading treatment:

Excessive sunlight will cause the seedlings to wither, so shading measures should be taken immediately. 5.Control watering:

Loofahs like moisture, but they are also afraid of drought, so keep the soil moist during the breeding process, but do not overwater, otherwise it will lead to poor root growth. 6.Pharmaceutical prevention and control:

If the phenomenon of loofah seedling death is found, it can be controlled with agents against fungi, bacteria and viruses. In short, to prevent the death of loofah seedlings, it is necessary to pay attention to reasonable fertilization, temperature control, moderate watering, shading treatment, watering control and pesticide control. If the phenomenon of loofah dead seedlings is found, measures should be taken to prevent and control it in time.

Summary. Kiss, I'm glad to answer for you: Is there a way for the loofah to die: There is a way for the loofah to die.

Kiss, I'm glad to answer for you: Is there a way for the loofah to die: There is a way for the loofah to die.

There are types and methods of loofah dead seedlings, which can be shiny and slippery to avoid. One way to do this is to take soil management measures to reduce changes in moisture and temperature in the air, avoid excessive fertilizer and take protective measures to avoid soil breakage and dragging. In addition, pest control measures can also be taken, such as limiting the soil temperature range, eliminating the encirclement and respecting wax, using effective chemical fungicides, eliminating the occurrence of insect pests, and avoiding the death of seedlings caused by pests.

<> loofah seedlings are unlikely to grow because of their weak root system, when the root system of the melon seedlings is weak, it will not be able to absorb enough nutrients, and its aboveground parts will grow poorly due to insufficient nutrients. Treatment method: Apply nitrogen, phosphorus and potassium water-soluble fertilizer + humic acid active liquid fertilizer (or amino acid active liquid fertilizer + trapped chain bacteria fertilizer) to the roots of the plant, and spray humus wangtarsun acid active liquid fertilizer + potassium dihydrogen phosphate to the foliar surface at the same time, and spray once every 7-10 days, 2-3 times in a row.

Summary. Hello, the loofah seedling stage has grown melon, it is recommended that you remove the small melon, will compete with other branches for nutrition, and apply fertilizer at the seedling stage of the loofah. At the seedling stage of loofah, the flower buds begin to differentiate, and the plant needs to absorb a large amount of nitrogen fertilizer to synthesize the protein needed for flower bud differentiation and vegetative growth, and also needs a small amount of phosphorus and potassium fertilizer to coordinate plant growth.

Fertilization combined with specific soil conditions, sowing to cotyledons before the emergence of management: the key point of management at this stage is to control the appropriate constant temperature between day and night, in order to ensure that the loofah seeds can be quickly and neatly unearthed, and the temperature of day and night is maintained at 25 28, basically can not see the light.

Hello, I've seen your question, I'm sorting out the answer, please wait a while Hello, I've seen your question, I'm now hand-hungry for you, but it takes a little time, please wait patiently, thank you

Hello, the loofah seedling stage has grown melon, it is recommended that you remove the small melon, will compete with other branches for nutrition, and apply fertilizer at the seedling stage of the loofah. At the seedling stage of loofah, the flower buds begin to differentiate, and the plant needs to absorb a large amount of nitrogen fertilizer to synthesize the protein needed for flower bud differentiation and vegetative growth, and also needs a small amount of phosphorus and potassium fertilizer to coordinate plant growth. Fertilization combined with specific soil conditions, sowing to cotyledon before excavation:

The key point of management at this stage is to control the appropriate day and night constant temperature guess jujube, in order to ensure that the loofah seeds can be unearthed quickly and neatly, and the temperature of day and night is maintained at 25 28, which can basically not be seen in the light.

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