Tomatoes: diseases of seedlings and treatment at home. Black leg of tomato seedlings, whiteflies, aphids, late blight, leaves are twisted and dry: struggle measures

Review of diseases of tomato seedlings and treatment methods.

Tomatoes are a rather whimsical culture. It’s not easy to take care of tomatoes when they are still very small. The seedlings of this culture are subject to many ailments. Seeds are bad germination. But subject to the rules, you can get a decent harvest of tomatoes.

Why is tomato seedlings turn yellow?

There are a lot of reasons for yellowing of tomato seedlings. The gardener will have to spend a lot of time to find out the cause. Simple tests and devices will help this.

Causes of yellowing of seedlings tomato:

• Lack of nitrogen. At the same time, along with yellowness on the leaflets there are red veins and spots.
• Lack of zinc and potassium. The lower leaves become small, can be covered with dots and twisted.
• Lack of iron. With this problem, plants turn yellow from the lower leaves and can be painted white. White spots and divorces appear.
• Damage to the root system. In case of damage to the roots, seedlings instantly turn yellow.
• Lack of soil. If seedlings grow in a small cup, transplant it into a larger container.

the tomato seedlings are turning yellow

Why is the tomato seedlings thin and long, what to do if it stretched out?

There are many reasons why tomato seedlings are stretched. The bushes resemble long stems with several tiny leaves.

The reasons for pulling the seedlings of tomato and methods for eliminating the defect:

• Lack of light. Tomatoes are a photophilous plant that does not tolerate shadows. If you grow seedlings on the windowsill, then all day after the sun passing the daylight lamp. It should be 50 cm from seedlings.
• Heat. For seedlings of the seed, a fairly high temperature is needed. But as soon as the seedlings appeared, it is necessary to reduce the temperature. The temperature at the level of 15 ° C is considered optimal.
• Many plants in the container. In this case, the shadow of plants closes each other. Accordingly, it is necessary to dive seedlings.

seedlings tomato are thin and long

Why are the leaves twist, wither and dry in seedlings of tomato?

There are many reasons for the drying, twisting and wilting of tomato seedlings.

Causes of wilting and drying of tomato seedlings:

• Heat. With an increase in temperature to 35 ° C, the seedlings instantly fade. To avoid this, ventilate the room. Treat the soil with urea solution.
• Bacterial infection. Before planting, be sure to treat the seeds, this will prevent the development of diseases. Prepare the soil before planting using copper dome and fungicides.
• Fuzarious wilting. This is an infectious ailment that can be picked up by one tool on infected and healthy beds. It is treated with fungicides. Manifests itself in the form of twisting leaflets.
• Phytopher. It occurs due to high temperature and frequent irrigation. The withering of leaves is immediately observed. You can fight the disease using mineral fertilizers and normalizing watering.

leaves are twisted, tomato wither and dry in seedlings

The seedlings of tomatoes are not growing: what to do?

Many gardeners may stop growing seedlings after planting. In this case, it is worth finding out the reason and take measures.

Reasons for stopping the growth of seedlings:

• Lack of light and moisture. In this case, it is necessary to use daylight lamps for additional lighting and watered more often.
• Bad germination of seeds. In this case, it is necessary to regularly feed the culture with mineral fertilizers.
• Bad soil. To grow seedlings, it is better to purchase soil. Earth from the garden may contain infections and viruses. In this case, before planting seeds, the Earth must be prepared.
• Low or high temperature. After the seedlings have risen, reduce the temperature to 15-18 ° C. This will protect the culture from drying, wilting and stopping growth.
• Availability in the house of pets. If you have seedlings on the windowsill, growth stops may be due to the fact that a cat goes to a container with a plant.

The seedlings of tomatoes are not growing

Why is the tomato seedlings purple and grow badly?

Many gardeners faced the fact that tomato leaves acquire a purple color. But if these are isolated cases, then there is no reason to be upset.

The reasons for the poor growth and acquisition of the violet color of tomato seedlings:

• Low temperature. With a decrease in temperature below 13 ° C, the leaves become purple. To return normal color, increase heating.
• Lack of phosphorus. In this case, the leaves change the color and can be twisted. To prevent further wilting, feed seedlings.

the seedlings are purple

Aphid on seedlings of tomatoes: how to fight?

Ways to combat aphids:

• Mechanical. The option is suitable only when there are very few insects. They can simply be crushed with your fingers.
• Chemically. Submissions from aphids will need to be processed from the bottom of the sheet. It is there that the main source of infection is concentrated. The plant must be treated periodically every 5 days. This method is used for seedlings to kill aphids. The most effective preparations of phytoverm and spark bio are considered.
• Garter. This method is used after chemical to support the stem. So that he does not break and does not fall.
• Folk methods. Various decoctions of herbs have proven themselves quite well. It can be a celandine or yarrow in a ratio of 1: 2. The decoction is necessarily diluted with water. The tomato is watered with the frequency of once a week.

Aphids on seedlings of tomatoes

White midges on seedlings of tomatoes - whiteflies: struggle measures

White midges resemble mold and are localized in the lower part of the leaves of the plant. If you look closely, you can see that these are small insects with two wings.

Measures to combat whiteflies:

• Chemicals. In general, this parasite is quite stable and therefore it is worth a lot of time and effort to devote to prevention. After harvesting, the soil is treated with a 0.3% solution of carbofos. The next spraying is carried out in early spring.
• Fumigation. If you grow seedlings in a greenhouse, it is easiest to fumigate. To do this, burn sulfur. An approximate expense for one cubic meter - 50 g after that for 2 days, the greenhouse is not opened or ventilated.

White midges on tomato seedlings

Mold on the ground in the seedlings of tomatoes: What to do?

Quite often, mold on the ground appears around tomatoes. This is fraught with sad consequences. To avoid the death of seedlings, take a number of measures.

Methods of fighting mold:

• Removing the upper soil layer. It is necessary to remove the part of the soil on which the fungus grows. Next, the layer is sprinkled with river sand for good drainage.
• Desx to soil. Mushrooms grow perfectly in an alkaline environment, so if you notice the mold, remove the upper soil layer and pour sour soil. You can use urea, it also acidifies the soil.
• Humus and leaf soil. This mixture prevents the growth of mold, so it is necessary to remove the upper part of the soil and fill it with a mixture of sheet soil and humus.

Mold on the ground in the seedlings of tomatoes

Black leg of tomato seedlings: struggle measures

Every gardener came across this ailment. The black leg or basal rot not only tomatoes, but also other crops affects. First, a couple of dark dots appear, and then the plant dies.

Methods of combating a black leg:

• Preparation of seeds. To do this, the seeds are soaked in potassium permanganate or salt water. Can be treated with chemicals.
• Overwhelming the soil. It is believed that the black leg develops in plants that grow in acidic soil. Before sowing, it is necessary to treat the soil ash.
• Soil preparation. If you are going to plant the seeds in the ground of the house on the windowsill, dry it in the oven at a temperature of 180 ° C 2 hours. After that, you can immerse in the freezer for a day.

Black leg of tomato seedlings

Phytopher on seedlings of tomatoes: fighting her

Phytopher is a dangerous fungus that affects all vegetable crops. The infection spreads very quickly, so you need to fight it radically.

Methods of combating late blight:

• Chemical treatment. Distributed with solutions of Gamair or phytosporin-m. Spraying is carried out once a week.
• Destruction of plants. If these are isolated cases, then it is worth tearing the bushes and burning them. This is due to the rapid reproduction of the fungus.
• Reduce watering. Phytopher is often propagated in conditions of high humidity. Water tomatoes rarely, but in large portions.

Phytopher on seedlings of tomatoes

Why is the tomato seedlings withering and falling?

There are a lot of reasons why seedlings can wither and fall. Methods of combating them are described above.

The reasons for the withering of tomatoes:

• Fusariosis
• Blackleg
• Heat
• Excessive watering
• Drafts

seedlings tomato wither and fall

White spots on the leaves of tomato seedlings: what to do?

The reasons for the appearance of white spots on tomato seedlings and ways to deal with them:

• Powder. It is necessary to carry out the treatment of Qineba, Gaupsin, Trikhodermin, after removing the affected leaves.
• Mosaic. This is a viral ailment in which the leaves cover white spots like a mosaic. There is no treatment, so the gardener can only pull out the sick bush and treat the soil with potassium permanganate.
• Clandosporiosis. This is a fungal ailment that affects the greenhouse plants. It is manifested by white and yellow spots on the leaves. For treatment, a shuttle or barrier is carried out.
• Septoriosis. This is also a fungal ailment that affects tomatoes that grow on outstretched ground. Fitosporin is treated for treatment. Prevention is effective in which seeds are soaked in potassium permanganate.

White spots on the leaves of tomato seedlings

How to treat tomatoes from diseases?

There are many drugs that will help get rid of diseases. It can be chemicals and folk drugs.

Preparations for processing seedlings of tomato:

• Gray and root rot: barrier, barrier, foundazole
• Belkolka and scoop: phosbezide, arrow, citror
• Medvedka: Oxich or Ridomil
• Witement and twisting of leaves: Trikhodermin, Gamair, Fitolavin-300

How to process tomato seedlings from diseases

Tomatoes are a healthy vegetable with a rich taste. But in order to get a good harvest, you will need strength and a lot of time.

Video: Care for tomato seedlings