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There are several possible reasons why tomatoes have white spots on the skin:
1.Intense direct sunlight. In this case, the white spots of the tomatoes may be due to the wax on the peel being melted by the strong direct rays of the sun.
2.Pest. For example, late blight, viral diseases, bacterial wilt, spotted loon flies, cotton bollworms, aphids, etc., these pests and diseases may cause white spots on the peel.
3.Pesticide residues. If the pesticide residue in the tomatoes is not cleaned, it may also form white spots on the peel.
4.Fruit ripeness. During the ripening process, nutrients and water inside the fruit are lost, resulting in white spots on the skin.
5.Tomatoes age. If the tomatoes are left out for too long during the cooking process, causing the tomatoes to age, it can also cause white spots to appear on the peel.
If the white spots are caused by pesticide residues or pests and diseases, it is necessary to pay attention to cleaning and control. If it is caused by direct sunlight or the ripeness of the fruit, it is normal. If the white spots are large or unevenly distributed, it may be some kind of lesion of the tomatoes and it is recommended not to eat them.
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If you feel that the top is still bright and ripe, it may be ripe, and some sand is opened. Now a lot of tomatoes are ripe, some varieties are still hard, there is no moisture in them, and some tomatoes that are ripe will feel some bright spots on them.
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It has become mildewy and is recommended to be thrown away.
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What's the deal with the white spots on top of tomatoes? How can it be prevented?
Hello, the white spots on the tomatoes are tomato bacterial canker disease, the young with positive silver fruit is wrinkled, deformed, slow to develop after being damaged, the disease spots on the green fruit are round, the periphery is white, the center is rough and black, the surface of the calyx is born and necrotic spots, and the slightly raised bird's eye spots can be seen on the fruit surface, which is a bacterial disease, which can be controlled with streptomycin, leaf huzole, octyramide, mesomycin, thiazole, thiazonite, thioxenery, chlorobromoisocyanuric acid, chlorobromoisocyanuric acid, polymyxoid bacillus alternately used plus potassium dihydrogen phosphate spray control, Apply 2 to 3 sprays in a row 5 days apart.
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These small black spots are black spot disease in tomatoes, which can be effectively solved by killing insects with insecticides.
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If you want to prevent well, you should sprinkle some pesticides, so as to achieve a very good preventive effect, and then you should pay attention to watering more to achieve a very good effect.
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Control method: First of all, it must be cultivated in high furrows, and the plastic film must be covered, and secondly, the density should be appropriate when planting. Scientific water and fertilizer management, timely replenishment of organic fertilizer, and top dressing when appropriate.
Pay attention to the reasonable combination of nitrogen, phosphorus and potassium fertilizers. Uniform irrigation to prevent excessive humidity in the field. It can be irrigated with small water and watered evenly.
Secondly, the vegetable garden was inspected many times, and the diseased fruits were found to be cleaned up in time, and the practice of deep burial was adopted. When the tomatoes are ripe, completely remove the residue and diseased fruit and branches. and dig deep into the soil.
In addition, it is also necessary to spray in time, and 70% mancozeb 500 times solution or 80% Xinwansheng 600 times solution can be used.
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It is very likely to be a pest and disease, possibly tomato spot blight, which can be controlled by spraying pesticides.
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In this case, the tomatoes are infected with fungi and the leaves are hyphae, which can be controlled with fungicidal drugs.
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It could just be a germ, it could be infected with spot blight, which is very fatal to tomatoes.
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<>1. There are white hairs on the tomato, which means that it has begun to decay, and the rotten tomato will produce mold, which is harmful to the human body, and the nutrition begins to be lost, and the taste will become worse, so it cannot be eaten;
2. Tomatoes, also known as tomatoes and persimmons.
The whole is sticky glandular hairs, with a strong odor, the stem is easily lodging, the leaves are pinnate compound or pinnately deeply lobed, the leaflets are very irregular, unequal in size, ovate or rectangular, the margins are irregularly serrated or lobed, calyx.
radial, lobes lanceolate, fruit-longing;
3. Corolla radiate, yellow, berries.
Flat or nearly globular in shape, fleshy and juicy, orange or bright red, smooth.
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The black spots on the skin of tomato fruit may be caused by tomato bacterial canker disease, an important bacterial disease caused by Coronella Michigan subsp. michigan.
Tomato canker disease is mainly transmitted over a long distance through seed carriers, and the main symptoms are: leaf necrosis, stem cracking, cankering, and plant death.
Invasion area: 28 cities or regions in 9 provinces and cities, including Beijing, Hebei, Inner Mongolia, Liaoning, Jilin, Xinjiang, Shanxi, Shandong and Shanghai, and there is a trend of gradually expanding to the south.
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Growth problems, too much light, too much moisture, disease, but it does not affect the food.
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If it is like silver powder, this is a variety of tomatoes - Zhusha tomato (tomato), its skin and subcutaneous flesh have a lot of small white spots, like silver powder, it feels as if it is flashing, the whole is pink (not the kind of red like blood), this kind of tomato is particularly delicious, especially when eaten raw, the taste is not sour, and there is a clear fragrance.
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This is a variety of tomatoes - Zhusha tomato (tomato), its skin and subcutaneous flesh have a lot of small white spots, like silver powder, it feels as if it is glittering, the whole is pink (not the kind of red like blood), this kind of tomato is particularly delicious, especially when eaten raw, the taste is not sour, and there is a clear fragrance.
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Breed issues. The variety of tomatoes with white spots is called Zhusha Tomato (Tomato Cracked Ming Banquet), the skin and subcutaneous flesh have a lot of small white spots, like silver powder, the whole is pink, this kind of tomato is particularly delicious, especially when eaten raw, the taste is not sour, and the unique fragrance of tomatoes is not caused by mold. If the tomato is moldy, it is usually white hairs on the surface, black mold on the outer skin, and the flesh is rotten and watery.
Breed issues. There are white spots in the western silver tomato, called Huai Chuan Zhusha Tomato (tomato), its skin and subcutaneous flesh have a lot of small white spots, like silver powder, the whole is pink, this kind of tomato is particularly delicious, especially the taste is not sour when eaten raw, and the unique fragrance of tomatoes is not caused by mold. If the tomato is moldy, it is usually white hairs on the surface, black mold on the outer skin, and the flesh is rotten and watery.
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