Vegetables

Spider mite on cucumbers in a greenhouse: control measures, how to get rid of (photo)

Anonim

Spider mite on cucumbers in a greenhouse appears more often than on open, unprotected beds. Inside greenhouses and greenhouses, the most favorable conditions are created for its development and reproduction. Therefore, it is necessary to protect the vegetable crop from the attack of a dangerous pest that can destroy the crop.

What a spider mite looks like

Spider mites on cucumbers are very hard to spot. The size of this insect is about 1 mm. The color can be different: milky whitish, yellowish green, reddish orange. After penetrating into the greenhouse, the tick first approaches the bushes, which have the largest and juiciest greens.Sucking the juices from the cells of the plant, leads to its drying and death.

Can you recognize the signs of a pest? The pest is most often localized on the inside of the leaf, since that is where most of the nutrients are located. You can recognize a tick on cucumbers in a greenhouse by the appearance of the plant. Moving along the leaf, they leave gray-white spots, which eventually turn into white stripes. The tick, destroying the cells and vessels of the plant, leads to a stop in its growth. Cucumber leaf turns yellow and curls.

After 2-3 days, female pests begin to lay eggs, the number reaches up to 400 pieces. And after 7-8 days, the number of insects increases significantly. If a web began to be observed on cucumbers in a greenhouse, then this is a sure sign of the appearance of a whole colony of insects.

Ticks are active when it is warm and dry.For the winter, the tick burrows into the foliage, into the remains of the tops after harvesting, hides in the corners of the greenhouse or manure. It can be carried by gusts of wind. For the human body, this small insect cannot cause harm, but it can destroy all cucumber beds. An insect, devastating the inside of the leaves, leads to a decrease in immunity.

Various diseases of cucumbers are developing in the greenhouse. Their treatment begins with the complete destruction of pests.

Most often, the mite causes the development of gray rot. Large brown spots are found on the leaves, and a gray coating appears on the fruits. You can treat rot in a greenhouse with chemicals (Hom, Oxy), you can use biological products (Sodium Humate, Stimpo) or use folk methods (iodine or soda solution, composition with whey).

How to deal with spider mites on cucumbers

It's pretty hard to get rid of him. Sometimes, the methods that helped before cannot cope again. Therefore, when answering the question of how to save the crop, it is easier to carry out preventive control methods.

Spider mite reduces the yield or leads to its complete loss. The taste of ripe fruits deteriorates, the shape is deformed. Cucumber beds infested with ticks get sick more often, so it's important to know how to deal with them.

  1. Before sowing seeds, it is recommended to dig up the ground, as mites can overwinter in the surface layer of the soil.
  2. It is best to choose varieties of cucumbers that are resistant to diseases and pests.
  3. When planting seedlings, it is recommended to alternate cucumber beds with tomato bushes. A tomato garden will protect against the rapid spread of the pest.
  4. Be sure to fight weeds.
  5. You should follow the watering schedule. Moisture inhibits insect breeding.
  6. It is useful to loosen the soil. The procedure that makes the plant strong is best done after watering. Loosening will allow better flow of oxygen and nutrients to the roots.
  7. Need to fertilize in a timely manner. This will increase resistance to diseases and resist the invasion of pests.
  8. Combat pest infestation with mulching.
  9. Be sure to periodically inspect plants. What to do if a spider mite is found on cucumbers? If a small number of leaves with mites are found, they must be plucked and burned, and the beds should be treated with any prophylactic agent.
  10. The tick loves asters, so this type of flower cannot be planted with cucumber beds.

Measures against spider mites on cucumbers in the greenhouse are as follows:

  • recommended to maintain high humidity, for mites, humidity of about 80% is considered an unfavorable environment;
  • be sure to disinfect the inventory and the entire structure;
  • recommended in autumn, after harvesting, to replace the topsoil;
  • fertilizing the soil with phosphorus elements.

Prevention of spider mites is also carried out using folk formulations. The compositions will help not only protect plants from mites, but also help enrich the soil with nutrients.

To prevent spider mites on cucumbers in a greenhouse, you can use tops or stepchildren of tomatoes. Greens are poured, put on fire, brought to a boil and then boiled for another 30 minutes. 50 g of crushed laundry soap is added to the finished solution. Before watering or spraying, the resulting solution is diluted with water.

Popular chemicals

The fight against spider mites on cucumbers can be carried out with store-bought chemicals. There are proven and effective chemicals than to treat cucumbers from spider mites.

Actara is a proven remedy for spider mites on cucumbers After 30 minutes, parasites lose their ability to suck juices and begin to die. For watering cucumber beds, it will be necessary to dilute 3 g of the drug in 10 liters of water, if spraying is supposed to be carried out, then take 8 g.

Fitoverm will help answer the question of how to deal with spider mites on cucumbers. In a bucket of water, add 10 ml of the drug. Protective properties remain for three weeks, but on condition that there will be no heavy rains. The only drawback is that the solution is addictive, so they can not remove pests several times per season.

Iskra-Bio is considered a safe preparation for spider mites in a greenhouse. It is not addictive and is able to quickly destroy the spider mite. The composition contains potassium components that help the damaged plant recover. After treatment with a solution, you can enjoy the cucumber in two days. 1 ml of the drug should be diluted in 1 liter of water.

Plant-Pin or Etisso sticks are used against spider mites. They are planted in the soil next to the cucumbers. During irrigation, substances that destroy insects begin to fall into the ground. Drug protection is provided for 1.5 months.

Karbofos is a highly effective remedy for controlling spider mites on cucumbers in a greenhouse. You can apply many times, but observing an interval of a week. Be sure to spray not only the outer, but also the inner part of the leaves.Take 40 g of the drug and dilute in 10 liters of water.

Insecticide control methods are considered the most reliable, but care must be taken. When diluting drugs and using them, the instructions and safety rules must be strictly observed. Vapors of solutions can lead to poisoning of the body. Therefore, when treating the beds with chemical solutions, you need to use personal protective equipment.

Processing of vegetable beds should be carried out in clear, dry weather, without wind or in the evening, but only if there is confidence that it will not rain in the next hour. The last chemical treatment is carried out two weeks before the expected mass harvest. During this period, all poisonous vapors will have time to disappear from the plant.

How you can prepare the composition yourself

How to get rid of spider mites on cucumbers without chemical additives, using folk remedies? On your own at home, you can prepare compositions for cucumber seedlings from natural and safe ingredients, following the recommendations of well-known recipes.

Remedies for spider mites on cucumbers based on onion peel help. It is poured with water and left to infuse for a whole day. The resulting solution can be sprayed on the green part of the vegetable crop.

To completely get rid of insect pests, folk remedies are used with the inclusion of an alcohol solution. From a tick, ammonia is often used. In a bucket of water, dilute 30 ml of ammonia. The resulting solution can wipe the leaves of the plant and process the design of the greenhouse. You can spray the leaves on both sides. Ammonia is harmless to the plant and is perceived as a nitrogen fertilizer.

How to deal with cobwebs on cucumbers in a greenhouse

Dandelion or calendula will help. Calendula flowers in the amount of 400 g are poured with two liters of water and left to infuse for five days. Before use, the infusion is diluted with water. Dandelion leaves should be poured with 10 liters of water and it is enough to infuse for two hours.

Cucumbers in the greenhouse can be treated with yarrow infusion. You need to collect the yarrow and dry it. For 2 liters of boiling water, you need to take 1 kg of dry grass. Should insist two hours. After that, you need to dilute the resulting infusion with 10 liters of water and leave for another two days.

Garlic can remove spider mites for a long time. Garlic cloves (100 g) must be crushed and pour boiling water (10 l) for 30 minutes. After insisting, you can use the composition for its intended purpose.

How can I fight a tick on cucumbers in a greenhouse with a simple pest control recipe based on healing aloe leaves. The fleshy leaves are crushed with a meat grinder, the resulting mass is diluted with water. In order for the solution to stay longer on the leaves, it is useful to add soap. You can apply once a week. Helps not only heal the plant, but also protect against insect attacks.