What to do with small white bugs on tomato leaves

This is not an aphid.

It's whiteflies, which are very powerful.

Imidacloprid can be sprayed in a timely manner.

Flapping, kung fu, enemy killing, etc., must be sprayed evenly, especially on the back of the leaf.

It is not advisable to spray daily insecticides to kill mosquitoes and flies.

When planting tomatoes, it is necessary to apply enough base fertilizer, and it is best to choose rotten farmhouse fertilizer, which can improve its quality and yield with sufficient nutrients. During the management period, it is necessary to prune reasonably, and when the stems and leaves grow, it should be started, and the method of forking and pinching the tip should be used.

Tomato Management Technical Essentials.

It has a large demand for water, so it should be replenished in time, but it is not resistant to waterlogging, so pay attention to controlling the amount of water irrigated. In addition, it is also necessary to pay attention to the regulation of the temperature, not too high or too low.

First, apply sufficient base fertilizer.

When planting tomatoes, it is necessary to apply enough base fertilizer, and the fertilizer is best to choose rotten farmhouse fertilizer as the base fertilizer, and use less chemical fertilizer, so as to ensure the quality of the tomato. It is sensitive to water and fertilizer, and only when fertilizer and water are sufficient can it produce high yields. 10 tons of farm fertilizer can be applied per mu, or 5 tons of farm manure, mixed with Trim granular compound fertilizer.

100 kg of superphosphate.

2. Reasonable pruning.

The tomato's growth cycle is about 60 days, and pruning begins when it grows stems and leaves. It can be carried out by dividing and pinching the tip. The side buds growing at the base of the stem should be cut off in time to reduce nutrient consumption and avoid infection with pests and diseases.

When the flowers grow, the side branches should be cut off, and the main head should be pinched off after fruiting to avoid crazy growth, which can promote more concentrated nutrients.

3. Hydrate appropriately.

The stems and leaves of tomatoes are more developed, and the consumption of water is relatively large, so it is necessary to water and replenish water in time. Control the amount of water when watering, it is not resistant to waterlogging, the amount of water can not be too large, and water can not be accumulated. Spring and autumn are usually watered every 7-10 days, before 10 a.m.

Increase the frequency in summer, and control water in winter, not drying or watering.

Fourth, temperature control.

After the tomato is planted, it is necessary to start to control the temperature, like a warm environment, the temperature is best maintained between 25-28 degrees, and the temperature at night should not be lower than 15 degrees, which can promote faster slowing down of seedlings. The temperature control after slow seedling is between 20-25 degrees. The temperature requirements after the result are high, preferably between 25-28.

In addition, it is necessary to pay attention to the regulation of humidity, which is generally around 30%.

Manual control: In the process of cultivating flowers, if it is found that there are individual branches or leaves with scale insects, they can be gently brushed off with a soft brush, or combined with pruning, and cut off insect branches and leaves. It is required to be brushed, cut, and burned in a centralized manner, and do not litter.

Rice vinegar liquid: Rice vinegar is rich in organic acids, which has a good inhibitory effect on bacteria. Spray the leaf surface with a diluted 150 200 times rice vinegar solution, spray 1 time every 7 days or so, spray 3 4 times in a row, put the small cotton ball into the vinegar and soak it, and gently rub it on the stems and leaves of the damaged flowers and trees with a wet cotton ball, and the scale insects can be killed.

Soap liquid: take soap and hot boiled water and spray it after dissolving it at 1:50, because soap can block the respiratory organs of pests to their death, and is effective against aphids and scale insects.

During the growth of the plant, there will be white bugs on its leaves, they will absorb the sap of the plant, causing adverse effects on the growth of succulents, you need to find a way**, you can generally use alcohol, vinegar or soak pots to kill insects.

Spraying pesticides emamectin benzoate or whitefly is low toxicity and high efficiency.

Small white worms, also known as whiteflies, are mainly harmful to eggplant fruits and melons and bean vegetables. It is mainly harmed by adult and nymph swarms sucking sap on the back of the leaf, which hinders the growth of the leaf, and appears greenish, yellowish and even die, affecting the normal development.

1. Yellow plate trapping: Yellow has a strong trapping effect on whitefly adults, and a long yellow plate is set around the potted plant, which is coated with a layer of sticky oil, which can be used to trap and kill adults.

2. Drug prevention and control: when whitefly occurs severely, pesticide prevention and control can be used to treat mosquitoes and flies, but it can be sprayed only after mixing with water to prevent pesticide damage.

3. When there are fewer whiteflies, they can also be captured manually.

The small white worms found when potting tomatoes should be whiteflies, and the yellow plate booby trapping method can be used**. Yellow has a strong attractant effect on whiteflies, you can put a yellow board under the tomatoes and then apply a layer of sticky oil to the board. In this way, whiteflies can be trapped, and they can be sticky and killed.

You can also use aphid wasps to **whitefly, when there are not too many whiteflies, you can release 15-20 lyadok wasps for biology**.

Cultivation methods and precautions for potted tomatoes.

1. Abstract control temperature: the control temperature is between 18 25, the seedling stage should be 25 28, and the night temperature should be 13 17. Proper watering:

After the potting soil is white or the leaves are wilted, water thoroughly to avoid stagnant water, and the air humidity should be 45 50%. Plenty of light: Put it in a well-lit location and see light for 6 hours a day, without shading, to avoid lack of light.

Precautions: Do a good job of erecting the scaffolding at the seedling stage, and if it is raised on a closed balcony, it is necessary to enhance ventilation.

2. Proper watering When watering, you can water when the potting soil is white, and you can also observe its leaves, and water thoroughly after the leaves wilt. Don't water too often, if there is too much water in the soil, it is easy to rot roots. Moreover, watering is usually done in the morning or evening, try to avoid noon, especially in hot weather, and do not water at the hottest time of noon.

Moreover, the air humidity should not be too low, and it is advisable to control the air humidity between 45 and 50%.

Third, the light is sufficient tomato likes the sun, during the pot breeding, it should be placed in a good position with good sunlight to ensure sufficient light, if the light is insufficient for a long time, not only the leaves will turn yellow, but the fruit growth will also be affected. If you want to maintain the balcony, you should ensure 6 hours of sunlight every day, and you don't need to take shading measures, and you can see the light normally in summer.

4. Precautions During the growth of tomatoes, in order to avoid stalk lodging, it is necessary to do a good job of erecting a frame during the seedling period, and insert bamboo poles next to the plant for fixation. If it is maintained on a closed balcony, proper ventilation is required, and the breeding environment should not be too stuffy, so as not to infect tomatoes with pests and diseases.

1.These insects can be cleaned up manually, and then the tomatoes can be properly sunned, not for too long.

2.Use 50 ml of vinegar (rice vinegar), soak a small cotton ball in vinegar, and gently rub it on the stems and leaves of the affected flowers and trees with a wet cotton ball to wipe off and kill the scale insects. This method is convenient and safe, which can not only achieve the purpose of insect control, but also make the damaged leaves green and shiny again.

3.Gently and repeatedly rubbing the diseased plant with alcohol can remove the scale insects, and it can be removed very cleanly and thoroughly.

If there are small white insects in potted tomatoes, you should spray insecticides quickly, like we must have prepared some aerosol insecticides at home. It's the kind that usually prepares to spray mosquitoes, which can completely kill some small insects, and you can also soak them in soapy water and spray them.

It is normal for potted tomatoes to have small bugs because of the infestation of pests and diseases. So at this time, the best way is to spray the relevant insecticide drugs according to the actual situation, and spray it several times, so that the tomatoes will get small bugs.

If you want to use insecticides, it is best to buy some small white medicine in it, which can have an effect of repelling insects. Keep in a sunny and ventilated place.

It can be sprayed with a household insecticidal spray, which is called powdery stone and is a pest that sucks sap, and can only be picked after 10 days of spraying, and rinsed with edible alkali.

1. Tomatoes found that small white worms should be whiteflies, whiteflies will not only appear indoors, but also when planting tomatoes in the open air, and will become more and more serious. If you find a tomato plant, you can put a yellow plate under the tomato plant and apply a layer of sticky oil to the board. Because the yellow color has a strong attraction effect on whiteflies, the hood cavity can automatically allow whiteflies to climb onto the sticky oily board.

2. In addition, 15-20 aphid wasps can also be released to biologically **whitefly.

Hello, there are usually several factors in this situation.

1. Tomato leaves fade green and turn white, generally appearing on new leaves, mainly caused by iron deficiency, which is easy to make the leaves white and affect photosynthesis.

ability, directly affect the development of fruits, each time spraying or watering, can be supplemented in small quantities and many times, can be sprayed with sea foliar fertilizer + chelated trace elements.

Water-soluble fertilizer, supplement magnesium, zinc, iron, manganese and other trace elements, reduce the problem of nutrient deficiency, and improve the ability of foliar photosynthesis.

2. Sometimes there will be many white spots on the leaves of tomatoes, which is a typical symptom of tomato poisoning, and the reasons for the occurrence are: 1. The use of plastic films containing chlorine and other harmful additives (new sheds or new shed films are more likely to occur). When the light temperature is high, volatile harmful substances combine with moisture in the air to form acidic substances, which cause harm to seedlings.

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3. The heating equipment and coal stove used in the shed produce carbon monoxide.

Harmful gases such as hydrogen sulfide combine with water in the air to form weak acids, which cause decolorization of seedling leaves, resulting in white spots or white edges. Phenomenon.

It should be albinism, and you can know how to deal with it on the Internet for details.

It is very likely to be a pest and disease, possibly tomato spot blight, which can be controlled by spraying pesticides.

In this case, the tomatoes are infected with fungi and the leaves are hyphae, which can be controlled with fungicidal drugs.

It could just be a germ, it could be infected with spot blight, which is very fatal to tomatoes.

Summary. Pro, there are small white flying insects on tomato leaves may be aphids, whiteflies, etc., after the discovery of insect pests, it is necessary to spray pesticides in time**, you can use 90% dichloride 800 times liquid and 40% dimethoate 1000 times liquid for spraying, spraying is recommended to choose every night or morning.

Dear, there are small white flying insects on the leaves of this rental tomato may be aphids, whiteflies, etc., after the discovery of insect pests and eggplant, it is necessary to spray the agent in time for slipping**, you can use 90% dichlorvoide 800 times liquid and 40% dimethoate 1000 times liquid for spraying, spraying is recommended to be carried out every night or morning.

In order to avoid the appearance of white worms on the leaves of tomatoes, when breeding tomatoes daily, it is necessary to ensure that the light is sufficient, and more than 5 hours of light are given every day. In the process of breeding tomatoes, it is also necessary to apply water and fertilizer reasonably to improve its disease resistance, daily maintenance of tomatoes, can be watered every 2 3 days, the soil is in a slightly moist state, pay attention not to let the soil produce water. It is also necessary to apply the diluted organic fertilizer solution every half a month to replenish nutrients so that tomatoes can grow robustly.

The above is all my reply, I hope to help your relatives, I wish you a happy life.