What to do if the leaves of pepper seedlings are full of holes

If it is not serious, you can use carbendazim wettable powder (sold in the flower and bird market) and water to mix, according to the ratio of 800 to 1. Spray evenly on plants, especially diseased leaves, with a watering can.

Also, it's leaf blight, of course, that's how I see it. I don't know. Anyway, the early stage of leaf blight disease starts to wither yellow from the tip of the bottom leaf.

The reason is that the humidity is too high, you let the pepper seedlings bask in the sun more, and the number of watering times should not be too frequent, so that the humidity of the surrounding air is not more than 60%, it is not easy to suffer.

Remember, the current appearance of pepper seedlings, I think it is sprayed every 3-5 days, it will get better slowly, the next watering should not be directly watered from the top of the leaves, watering at the bottom, there is water on the leaves will allow microorganisms to take advantage of it.

Friendly reminder: Plant them separately as soon as possible after the pepper seedlings return to normal, because the density is too large to allow the germs to take advantage of the opportunity and accelerate the speed of infection.

The bottom spraying is to use a watering can, put the nozzle on the top, spray it from the bottom to the top under the blade, and then spray it from the top of the blade down again. It's just one way ...

The leaves of pepper seedlings are full of holes, which may be aphids or soil jumping insects. Aphids suck the juice of peppers, causing holes in the leaves. If it is infested by a soil skipper, its body secretes an oily substance that can hinder the plant's respiration and water absorption, causing the leaves to grow holes.

If there are only a few holes in the leaves, you can cut off the insect leaves and kill them manually, and if the area is large, you can spray dichlorvos lotion to kill them. During the growing season of the plant, it is necessary to pay attention to checking the back of the leaves frequently and paying attention to booby-trapping to avoid the spread of pests.

1. Cultivation and disease prevention. After the pepper is planted, at the beginning of flowering and fruiting, the intercropping method of planting one row of corn every four rows is adopted. Because the corn plants are tall, they can play a role in attracting aphids, and in the hot summer during the peak fruiting period of the peppers, the tall corn plants can also protect the peppers from the scorching sun.

2. Choose disease-resistant varieties. Generally, early-maturing and spicy varieties are more resistant to disease than late-maturing and non-spicy varieties, such as common varieties Jinjiao No. 3, Tianza No. 1 and No. 2, Nongda 40, Zhongjiao No. 2 and No. 3, etc.

3. Seed disinfection. The seeds are soaked in water for 3-4 hours, soaked in 10% sodium phosphate for 20-30 minutes, then rinsed with water, or soaked in potassium permanganate for 30 minutes, then rinsed with water, or dry heat treatment, 80 degrees for 24 hours, 70 degrees for 72 hours.

4. Strengthen field management. Sow early at the appropriate time, do not crop continuously, apply more phosphorus and potassium fertilizers, and do not apply nitrogen fertilizers. Clean the field, reduce the source of bacteria, take the previous crops out of the field, concentrate on treatment, dig pits and bury deeply.

5. Reduce the chance of pollution. Viral diseases are mostly spread by aphids and agricultural operations, and can be controlled by trapping aphids.

1) Kill aphids in time. From the seedling stage of pepper, imidacloprid and other drugs should be sprayed frequently and timely to control aphids and cut off the vector of poisoning.

2) Cultivated tomatoes should be kept at a distance from sugar beets.

3) You can try 400 times of 5% bacterial poison clear wettable powder or 300 times of antiviral agent No. 1 water solution, and 400 500 times of 30% poison buster wettable powder. 1 time every 7 10 days, 2 3 times of prevention.

Maintenance method. 1. Temperature: Chili peppers prefer higher temperatures, between 25 and 30 degrees. However, too hot conditions will hinder its growth, so it should not exceed 35 degrees.

In addition, because its cold tolerance is not good, it should not be lower than 15 degrees. If it's a potted plant, keep it indoors all the time.

2. Light: Chili peppers prefer light, but are afraid of strong light. Between April and September, the light is stronger, so you can place it in a semi-shady place to avoid bright light. However, in order for it to blossom and bear fruit, it is not possible to be completely dark.

3. Watering: Pepper has high requirements for watering, because it is afraid of both drought and waterlogging. Therefore, it is necessary to replenish sufficient water during the growth period to keep the substrate moist.

However, too much stagnant water is not a good idea. In the rainy season, it is necessary to drain the water in time. In winter, it is better to keep it slightly dry.

4. Fertilization: Fertilization must be carried out on a sunny day. The period when fertilizer is required is mainly during the flowering and fruiting periods, and it needs to be applied frequently.

The above content reference: Encyclopedia - Bell pepper, pepper (CTV) virus disease.

Pepper seedling leaves rolled up can be treated as follows:

1. Prevention and control of diseases.

The leaves of the pepper seedlings are rolled, which may be caused by a viral disease, at this time, the diseased leaves should be cut off, and then the pepper seedlings should be sprayed with fungicides, so that the leaves of the pepper seedlings can be restored to a healthy state, otherwise if the situation is too serious, the pepper seedlings will wither and die.

2. Warming measures.

Pepper seedlings like to grow in a warm environment, usually the temperature is between 25-30 during the day, and the temperature is between 18-20 at night.

3. Drainage and ventilation.

In the sultry and high humidity environment, pepper seedlings are easy to roll leaves, at this time it is necessary to drain the pepper seedlings, keep the soil slightly moist best, and also need to do a good job of ventilation measures, so that the water in the air can quickly evaporate, but also play a cooling role, which is conducive to the healthy growth of pepper seedlings.

4. Proper shading.

Pepper seedlings are not resistant to strong light exposure, too strong light will also cause it to roll leaves, this phenomenon occurs, it is necessary to take shade measures for pepper seedlings, especially the newly transplanted pepper seedlings must not be exposed to the sun, and wait until the pepper seedlings gradually resume growth, so that they can receive sufficient light.

Precautions for the maintenance of pepper seedlings

After the pepper seedlings bloom, it is necessary to replenish water in time, because at this time, the demand for water for pepper seedlings is relatively high, and the pepper seedlings must be managed correctly to avoid the leaves of the pepper seedlings falling off, and the pepper seedlings usually need to be watered four days before the pepper seedlings bloom.

When maintaining pepper seedlings, if the soil is dry, we must replenish water in time, especially in the high temperature and drought season, we can also sprinkle water around to cool down, so that the humidity of the air increases, but when watering, can not be watered in large quantities.

Sufficient nutrients are also needed during the growth of pepper seedlings, during the flowering period of pepper seedlings, fertilizer should be applied diligently, and fertilizer is best to compound fertilizer, no matter what fertilizer is applied, the concentration can not be too high, to avoid pepper seedlings falling fruit.

Hello! The newly grown leaves of pepper seedlings have small holes and missing edges are soil to jump to eat, this animal grows in the soil, staple food seedlings, harm young leaves, you can go to the store to buy dichlorvos pesticide spraying.

Yes, but you can't overshoot the leaves, or leave a part of it, carry out photosynthesis, shade the fruit, and reduce the sunburn.

How to care for chili peppers.

Temperature. Chili peppers prefer warmer temperatures, between 25 and 30 degrees Celsius. However, too hot conditions will hinder its growth, so it should not exceed 35 degrees. In addition, because its cold tolerance is not as good as that of potato tomatoes, it should not be lower than 15 degrees.

Illumination. Chili peppers prefer light, but are afraid of strong light. Between April and September, the light is relatively strong, so you can place it in a semi-shaded place to avoid strong light. However, in order for it to blossom and bear fruit, it is not possible to be completely dark.

Watering. Chili peppers are more watering demanding because they are afraid of both drought and waterlogging. Therefore, it is necessary to replenish sufficient water during the growth period to keep the substrate moist.

However, too much stagnant water is not a good idea. In the rainy season, it is necessary to drain the water in time. In winter, it is better to keep it slightly dry.

Fertilize. Fertilization must be done on a sunny day. The period of fertilization is mainly in the flowering and fruiting period, and it is necessary to apply water-soluble fertilizer to supplement nutrients for the fertile leaves.

Yes, too many leaves are too dense and block each other, which will affect the high yield of the plant, and proper removal can avoid excessive consumption of nutrients.

And the chili pepper is very cheap, and proper removal is beneficial and harmless. When picking, choose old leaves, yellow leaves, and weak leaves. If the two pieces are both the same good, choose the one below that is blocked by the sedan chair to pick up the shortcomings.

If Jian Fan is worried, he can pick it in batches. In addition, there is a certain truth in the nitrogen fertilizer mentioned upstairs, try not to apply nitrogen fertilizer alone, and apply more seafood fertilization phosphate fertilizer.

Chili blight. <>

First, the main symptoms:

The base of the stem of the infected seedling is soaked in water and soft rot, causing the upper part to lodging, mostly dark green, and finally cataplexing or standing withered and died.

Second, prevention and control measures:

Foliar spray more than twice with alumicide or prixic + copper thiazole or thiazole, while paying attention to proper ventilation and moisture drainage.

3. Expand your knowledge.

1. Common leaf diseases of pepper:

1) Scab:

At first, the diseased leaves are scattered with small brown spots, and then the lesions expand into nearly round, gray and white in the middle, and brown raised spots on the edges. (high temperature and high humidity).

2) Powdery mildew:

In the early stage, powdery mildew is formed on the front and back of the leaves, and in the later stage, the whole leaves are covered with white powder, and the disease is more severe on the back of the leaves. (low temperature and high humidity).

3) Downy mildew:

It can also produce a white mold layer, but only on the back of the leaf, and the corresponding leaf surface shows a yellowish spot. (High humidity).

4) Bacterial leaf spot disease:

At first, the lesions appear yellow-green irregular spots, and then gradually turn rust-colored, and the junction between disease and health is obvious. (high temperature and high humidity).

5) Brown Spot Disease:

The lesions are grayish-brown, slightly raised, with ringed rings, and often have a grayish-white dot in the middle. (high temperature and high humidity).

6) Spot blight:

Light gray lesions appear on the leaves at first, which can be connected into a ribbon with the development of the disease, and in severe cases, the middle part is perforated, and small black spots are scattered. (High humidity).

7) Anthrax:

It is also a ring pattern lesion, but compared with brown spot, the lesion is darker in color, and the later lesion is densely covered with small black spots. (high temperature and high humidity).

2. Prevention program.

1) Daily prevention:

After the seedling is slowed down, from the seedling stage, spray R. solanacearum ricocca, garlic oil, autrau, sugar alcohol, calcium, magnesium, vofon, amino-oligosaccharides once every 10-15 days, aiming to increase the chlorophyll content, increase nutrient accumulation, thicken the waxy layer, and resist disease through direct sterilization and indirect immune sterilization, so as to improve the overall disease resistance and stress resistance of crops.

2) Focus on prevention in special periods:

After typhoons and rainstorms, spray wilt rickets, garlic oil, and wofengsu to promote wound healing by timely supplementing the nutrition of the world, and to repel harmful bacteria by supplementing beneficial bacteria to reduce the probability of disease.

3) Management: Reduce the probability of disease occurrence through management methods such as ventilation and moisture drainage, frequent watering with small water, and balanced fertilization.

Peppers do not grow well and can have the following problems.

Improper fertilization: Unrotted organic fertilizer is used during fertilization, which leads to the bacteria in the fertilizer infecting the pepper seedlings, thus causing the phenomenon of rotten seedlings. Water-soluble fertilizer can be applied to reduce fertilizer damage.

Excessive watering: The amount of watering is not well controlled when watering pepper seedlings, resulting in a too humid growth environment for plants, and when the plants are in a humid environment for a long time, it is easy to rot seedlings.

Planting too densely: Seedlings are planted densely, resulting in poor ventilation between plants (breeding bacteria), so it is easy to rot seedlings.

Bacterial infection: Pepper is infected with blight, which can damage the leaves, stem base, and fruit of the plant, especially the stem base.

The use of unrotted organic fertilizer caused the bacteria in the fertilizer to infect the pepper seedlings, thus causing the phenomenon of seedling rot. Too much watering, resulting in too humid growth environment for the plant, so there is seedling rot; The seedlings are planted too densely, resulting in poor ventilation between the plants, so it is easy to rot the seedlings. Seedlings suffer from blight, which can damage the leaves, stem bases, and fruits of the plant, which can be responsible for leaf rot in peppers.

How to prevent and control rotten leaves of pepper seedlings.

1. Apply fully decomposed organic fertilizer, or apply inorganic fertilizer and trim water-soluble fertilizer to the plants.

2. Scientific watering, when the soil is relatively dry, it provides water sources rich in minerals for plants, and when the soil is wet, it is necessary to stop watering, so as to create a good growth environment for plants.

3. Dig out the seedlings that are too densely planted, and then adjust the appropriate plant spacing to replant them, so as to keep the air circulation near the seedlings.

4. Dig out the rotten seedlings and burn them, then sprinkle an appropriate amount of lime powder on the planting area (to kill germs), and at the same time spray chlorothalonil or carbendazim and other drugs on other healthy seedlings to completely kill the germs on the plants.

Summary. This is pepper soft rot 1, the implementation of more than 2 years of rotation with non-solanaceae and cruciferous vegetables.

This is pepper soft rot 1, the implementation of more than 2 years of rotation with non-solanaceae and cruciferous vegetables.

Clean the countryside in a timely manner, especially remove the diseased fruits, take them out of the field and burn them or bury them deeply. 3. Cultivate strong seedlings, plant them in a timely manner, and plant them reasonably and densely. Drain water in time during the rainy season, especially at the head of the sewer; 4. The cultivation of the protective land of the sedan car should be strengthened to prevent the humidity in the shed from being too high.

It has already borne fruit, not the seedling stage.

If a round or several plants are found in the pepper field and wilt at noon and recover slightly at night, they should be uprooted immediately and taken out of the field to burn, and then buried with soil mixed with lime to bury the pepper Gaoli disease.

When watering after planting, copper sulfate is added to the field with Shuizhou, and the dosage per mu is kilogram, which can reduce the disease; At the beginning of the disease, spray or water with pesticides, such as 50% carbendazim wettable powder 500 times liquid, 50% methyl tobuzin wettable powder 500 times liquid, 75% dixone wettable powder album Jianfeng 800 times liquid, etc., spray 50 liters of liquid per mu, spray 1 time every 10 days or so, spray 2 times in a row to change orange 3 times, and stop using the drug 3 days before fruit picking.