What are the diseases of tomatoes in the open ground?

To collect a good harvest for tomatoes will have to look after. They require increased attention and knowledge. Only the destruction of time seen pests and diseases can ensure a good harvest.

Diseases of tomatoes in the open ground

Fruit top rot

The disease also affects the green fruit. The top of the tomato turns black. There is such a defect due to a lack of calcium. In order to avoid this disease, before planting seedlings, add a tablespoon of calcium nitrate and a handful of wood ash to the well. But you can simply irrigate the bush with a solution of calcium nitrate.

Fusarium wilt

What are the most common diseases of tomatoes in the open ground? It is a fungal disease that affects shoots or very young plants. The infection comes from the ground through the spine. Outwardly it looks like a tomato lacks moisture. His stem splits and turns black. Prevention of the disease will be compliance with crop rotation, as well as treat the disease with the drug "Previcur" or a biopreparation "Trichodermin."

Whitefly

Diseases of tomatoes in the open ground can also be caused by pests. These are small white flies that hide behind the leaves. Although they are small, but very dangerous. To get rid of the pest, you can hang on the greenhouse traps, use the drug "Boverin", open the door to the greenhouse or remove the film.

Gray rot

Diseases of tomatoes in the open ground most often occur through the fault of fungi. This type of fungus affects culture in cold and wet weather. Fungus attacks everything: leaves, fruits, inflorescences, stems. On the plant, dark spots spread with a gray bloom. As a rule, the fungus originates in gray, cool greenhouses. To defeat the disease, on the plant you need to cut off the three lower leaves to increase the air circulation at the bottom. Usually the fungus dies when the weather becomes warm and sunny.

Spider mite

This is another pest that often poisons the life of truck farmers. There is a diagnosis in the form of small specks of yellowish color. It is almost impossible to see the mites themselves, because they are about one millimeter in length. Than to splash tomatoes from the illnesses connected with ability to live of mites? It is most effective to use the bio-drug "Aktofit" from the arachnoid mite for tomatoes in the open ground. If the plants are in the greenhouse, it sometimes becomes sufficient to simply remove the film.

Aphids for plants

To defeat tomatoes this parasite can and in greenhouses, and in an open ground. A lot of means are developed against aphids. But you can fight in natural ways, for example, wash the parasite with a strong stream of water directed to the place of concentration of aphids.

Late blight

This is one of the most dangerous diseases to which tomatoes and potatoes are exposed. It shows late blight in the form of brown spots of drying and yellowing of foliage. Gradually, the disease spreads to the fruit and destroys the harvest. The pathogen hibernates on plant residues or in the soil, but is carried by water and wind. The main cause of the disease is a surplus of moisture, so you need to water the tomatoes under the root. You should not also plant tomatoes near potatoes. Protection of a tomato from diseases of this type can consist in spraying with preparations of "Mikosan", "Pentafag". But if the plants are already infected, chemical preparations "Tattu", "Infinito", Bordeaux liquid should be used.