What causes the rotting of planted tomatoes?

At the beginning of the tomato branch, there is a wound on the branch, and the virus enters the plant from this wound, from which it begins to rot, and when the entire pith of the plant is infected, the whole plant emits a foul smell. When the calcium amount of tomato plants is sufficient, the oxalic acid is neutralized by calcium to form calcium oxalate, which can effectively prevent the loss of oxalic acid from plants, and the most obvious symptom of tomato plants when calcium deficiency is that they are very prone to umbilical rot, which leads to a large number of fallen flowers and fruits and rotten fruits. Fruit drop, cracking, and rotting occur in the process of planting tomatoes, which are caused by large amounts of water, large amounts of nitrogen fertilizer, large temperature difference between day and night, and insufficient trace elements.

When the damage is serious, the fruit stalk is also damaged and shrunk, the vegetable farmer is commonly known as "the face", the diseased fruit mostly keeps the original state, does not soften, is easy to fall off, the leaf is infected, and it grows out of the water-soaked and large green spots, gradually rotting, and sometimes the concentric ring pattern can be seen. Tomato fruit cracking is very common in the hot summer months, and the main cause is water imbalance, which causes the peel at the fruit stalk to crack, which in turn induces soft rot and eventually causes the fruit to rot and fall.

Caused by the lack of necessary minerals, the plant itself is not nutritious, so the connected parts are prone to fruit loss, and some plant diseases are also easy to cause such a situation. For reasons like yours, it should still be bacteria and pests, you should buy a little medicine to kill it, it should be fine, but tomatoes and fruits, you must wait for this medicine to expire before you can get it to eat, so be careful, it is also good for your body, and safety first in everything.

What is the cause of the rot of the planted tomatoes, how to **, tomatoes are tomatoes, which belong to the Solanaceae crops, and solanaceae crops should reduce diseases, first of all, we must arrange the stubble and avoid continuous cropping, and at the same time, we can also implement water and drought rotation to effectively inhibit the virus living environment to reduce the probability of disease. Soft rot mainly occurs on tomato green fruits, after the onset of the disease, the flesh decays rapidly, accompanied by a pungent odor, and eventually falls off the plant, and some will form white dead fruits on the branches.

It is likely that the tomatoes are overwatered, so they are rotten, and they should be watered less in normal times.

The biggest reason for the rot of planted tomatoes is that too much humidity is easy to cause rot, and the other is pests and diseases.

The main reason is that there is a problem with the soil, in this case, the soil can be completely renovated, and then this large-scale spraying of pesticides can be carried out, so as to solve this phenomenon well.

It is very likely that the tomatoes are contaminated with a colony and have not been removed in advance, so they will all rot.

The reason is that there has been a lot of rain recently, and tomatoes absorb a lot of water and are easy to rot.

Tomatoes are in a period of strong demand for water and nutrients during fruit setting and swelling, which requires the root system to absorb enough water and nutrients to meet the plant's needs. Timely spraying of vegetable fruit can make the fruit handle thicker, the water and nutrient transport smooth, improve the nutrient flow, promote the development and expansion of the fruit, improve the water absorption and fertility of the plant, improve the yield and quality of the fruit, and reduce the incidence of dead trees. Rainwater enters the shed first, resulting in a decrease in root respiration and absorption.

Since the rain temperature is lower than the soil temperature, the tomato root system is cold after the rain, the cells atrophy or burst, and the absorption is inhibited. Therefore, after the rain enters the greenhouse, the plants are easy to wilt, especially when the rain suddenly dissipates, the light intensity is strong, and the transpiration is vigorous, resulting in acute wilting symptoms of tomato plants.

After the rainwater enters the shed, the air and soil moisture in the shed are very high, resulting in the phenomenon of water accumulation in the shed. After sunny days, the high temperature and humidity environment in the shed is very conducive to the occurrence and spread of blight, such as Phytophthora root rot, bacterial soft rot, blight, etc. Root irrigation can be carried out with a combination of root stones and fungicides, which can induce the aggregation of pathogens and provide fungicides to surround and destroy harmful bacteria in the roots of fruit trees.

Fusarium wilt is a soil-borne disease caused by Fusarium fungus, which is usually found in large amounts of soil. Plant weakness, heavy soil stickiness, and waterlogging damage are all leading agents. The pathogen is transmitted through irrigation water.

If the arch shed has been planted for many years, the soil has not been disinfected, and the use of organic fertilizer and biological fertilizer is not paid attention to, it will lead to the accumulation of wilt and pathogens year by year, and the dead trees will be serious. If there is a greenhouse with serious wilt, when planting tomatoes next year, you must use methyl bromide to suffocate the greenhouse at high temperature in summer, fumigate the soil, and completely kill the pathogenic bacteria.

Reasonable fertilization methods should be adopted, and the amount of basal fertilizer should be appropriately reduced in summer stubble compared with spring and summer basal fertilizer. Organic fertilizers must be applied after maturity, and less chemical fertilizers or controlled-release fertilizers should be applied to reduce the damage of fertilizers to the root system. Water frequently in the early stage, control water in the later stage, and cultivate strong seedlings.

After planting, the seedlings should be watered in time, and the planting water should be watered thoroughly. Depending on the weather and soil conditions, a small amount of water should be watered to avoid seedling burns due to high soil temperature. The application of Miao Zhuang No. 1 Rooting King contains a unique strain, which can quickly form favorable and beneficial flora in the soil, inhibit harmful bacteria, reduce the harm of pathogenic bacteria to crops, inhibit soil-borne diseases, and prevent malnutrition symptoms such as dead seedlings, rotten trees, yellow leaves, falling flowers and fruits.

Dead tomatoes may have been planted too deeply and not hoeed well after watering. Or it is caused by excessive watering in low temperature climates in winter, or caused by root rot, base rot and wilt. Generally, when the plant is wilted, it is necessary to immediately pick up the soil and let the roots dry.

When planting in a greenhouse, the temperature of the greenhouse should be controlled, and the temperature should not be too high or too low. Before planting, some biological agents can be applied appropriately to enhance the disease resistance of tomato plants.

The tomatoes you grow are prone to death, of course, because you don't water them properly and don't fertilize them properly.

Tomato rot is mainly caused by soft rot and needs to be avoided and controlled for a long time. The symptoms of a large number of tomato rots can damage the husks and fruits. The stems mainly start with pruning wounds and then extend inland, as well as marrow rot.

Prevention methods include: timely collection of healthy fruits, timely removal of diseased fruits. Before the onset of the disease or before mainly invading the unripe fruit, there are light brown spots on the top or shoulder of the fruit, and then there is a small amount of white mold, and the subcutaneous flesh will also turn brown, and all the fruits will rot and fall off in the later stage.

The expiration date is too high. After a sudden sunny day, Casca is most likely to lose water and rot. We can lift the quilt up, do the farming work, and then grab the ripe fruit and pull the quilt up completely.

For example, 400-600 times of refined zinc or 600-800 times 75% chlorothalonil is the cause of rotten tomatoes: on rainy days or when the dew is not dry, rain and dew play an important role in spreading and invading bacteria, pruning and branching, or insect infestations are frequent and the disease is serious; Tomatoes with continuous peels, low-altitude soils, and soil-heavy tomatoes will rot.

This can be caused by gray hairs, later redness, or calcium deficiency due to high humidity. First of all, you should distinguish the type of disease with tomatoes, and then use them correctly. In the case of gray hair, you should know the type of disease of tomatoes before administering medicine.

It is advisable to spray more rainwater to xu in the early stage and cause fruit umbilical rot due to lack of water in the later stage. Tomatoes from many friends entered a period of crazy fruiting, and many friends reported good news to the south. There are many reasons why the umbilical cord can rot.

What are the causes of corruption in the South? Bacterial tomato cellulose necrosis, the traditional plant tomato planting habits, planted only varieties, and there is no reasonable rotation, resulting in the accumulation of bacteria in the soil, which is also one of the main reasons for tomato root rot. Soil producers in growing areas are often referred to as "stem rot".

This will seriously affect the growth and development of tomatoes and the ripening of fruits. The disease is mainly caused by the rotting fruit of eggplant. What happened and how to avoid and control it?

It's a hard question.

The tomatoes will be rotten, which may be caused by too high soil moisture and too high air humidity, if the tomatoes produce diseases such as late blight, gray mold and sleepy cotton rot, then it will also be rotten, when planting tomatoes, you need to first blanch the seeds or soak the seeds with pesticides, and usually do a good job in the management of water and fertilizer to reduce the probability of tomatoes getting sick and rotting.

1. The humidity is too high

When the tomatoes are planted and rotten, it may be caused by excessive humidity, and when it is rainy for a long time, there will be too much water in the soil, and the air humidity will be relatively high, and the tomatoes can not evaporate water well, and they will eventually rot, so the tomatoes need to be drained and ventilated in time during the rainy season.

2. Caused by disease

The planted tomatoes will rot, and there is another reason for the disease, such as late blight, gray mold and cotton rot, etc., which will cause tomatoes to rot, and this phenomenon will occur, it is necessary to remove the rotten tomatoes in time, and then use drugs to spray and control them, so that tomatoes can grow healthily.

3. Seed treatment

When planting tomatoes, if you want to prevent it from rotting, then you need to treat its seeds before planting, it is best to mix seeds with hot water or soak the seeds with pesticides, which can reduce the probability of tomatoes producing diseases, and when planting tomatoes, you also need to disinfect the soil first, so as not to breed a large number of pathogens in the soil.

4. Maintenance management

When daily maintenance of tomatoes, it is necessary to let them have a warm, ventilated and sunny environment, and in the tomato growth period, it is necessary to apply water and fertilizer reasonably to promote its vigorous growth, so that the disease resistance of tomatoes will be improved, and the probability of disease and decay can be reduced a lot.

Tomatoes rot mostly because they are infected with soft rot, which needs to be prevented and treated in time.

1.Strengthen field management, pruning and budding should be early. Control of fruit borer pests during fruiting.

2.Proper crop rotation. Crop rotation for more than three years was carried out for non-Solanaceae crops to reduce the number of microbial sources in the soil.

3.select disease-resistant varieties and strictly control seedlings; Among the varieties promoted in the market, there are Jiafen 15, Jiafen 16, Jiafen 17, Zhongza 7, Shenfen 3, Jiahong 15, etc., which can be planted according to local conditions.

4.Seed. The introduction of seeds requires seed treatment, soaking seeds in warm water, taking advantage of the difference in heat tolerance between seeds and pathogens, and selecting a temperature that can kill the internal and external pathogens of the seeds without damaging the vitality of the seeds.

For tomato seeds cultivated in greenhouses, it is advisable to soak seeds in 55 warm water for 30 minutes, take out the germs inside and outside the seeds, cool them in cold water after taking them out, soak them with potassium permanganate for 30 minutes, rinse them with water several times after taking out the seeds, and dry them to promote germination and sowing.

Tomato rot cause: Because it is a physiological disease, the degree of damage depends on the variety, the number of hours of sunshine, the intensity of light, and the proportion of nitrogen, phosphorus, and potassium in the soil. Prevention and control methods:

It is mainly to work on management, appropriately increase the light to scientifically determine the sowing and planting period, and use formula fertilization.

Tomatoes rot, generally caused by a fungus. If there is a long rainy season, it is easy to cause rot.

Tomatoes rot before they are ripe is tomato umbilical rot, which is a physiological disease, due to the imbalance of water and calcium deficiency. It usually occurs when the fruit grows to the size of a walnut and initially manifests as a water-soaked lesion on the umbilicus of the tomato, with white, black and pink mold on the surface. When the leaves consume a large amount of water, it leads to the absorption of water from the umbilicus by the leaves, and the internal moisture of the fruit is out of balance, and the growth and development are hindered, forming umbilical rot.

1. What is the reason why tomatoes rot before they are ripe?

Tomatoes rot before they are ripe are due to tomato navel rot, which usually occurs when the fruit grows to the size of a walnut.

1. Cause: It is a physiological disease caused by water imbalance, calcium deficiency and other reasons. When the first panicle is set and the fruit is set, the plants in the vigorous growth stage encounter drought, and the leaves consume a lot of water due to transpiration, and the water in the umbilicus is absorbed by the leaves.

At this time, the internal moisture of the tomato fruit is imbalanced, and the growth and development are hindered, forming umbilical rot. There are also some farmers who apply nitrogen fertilizer, resulting in excess nitrogen nutrition and vigorous growth. Tomatoes cannot absorb enough calcium and boron in the soil, resulting in physiological disorders of umbilical cord cells, losing the ability to control water and causing umbilical rot.

2. Symptoms: The umbilicus of tomatoes appears water-soaked lesions, which cause the top of the fruit to become depressed and browned after expansion, and white, black and pink mold layers grow on the surface when wet, which are saprophytic fungi but not pathogens.

Second, how to prevent and control

1. Water regularly to ensure sufficient water during the flowering period and the early stage of fruiting.

2. When planting, it is best to put the same growth together to avoid excessive water shortage of individual plants and cause umbilical rot.

3. Disease-resistant varieties can be selected, the surface of tomatoes is relatively smooth, and the varieties with sharp fruits are easier to feed.

4. Mulching can keep the moisture relatively stable in the soil and reduce the loss of calcium in the soil.

5. It can be covered with a shade net to reduce excessive transpiration of plant water, and at the same time to prevent and control tomato umbilical rot.

6. Calcium fertilizer technology can be used to spray 1% superphosphate within 1 month after the fruit of tomatoes and bell peppers. Spray every 10-15 days from the beginning of flowering, 2-3 times in a row. It should be noted that when calcium chloride and calcium nitrate are used, they should not be mixed with sulfur-containing pesticides and phosphates to prevent precipitation.