Fighting spider mites in a greenhouse in cucumbers

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In the process of growing cucumbers, gardeners face many problems. They are especially concerned about the issue of pest control. Spider mites on cucumbers in the greenhouse are one of the main problems. To successfully combat the disease, you need to know all the details regarding this pest, otherwise you can lose most of the crop.

Fighting spider mites in a greenhouse in cucumbers

Tick ​​description

The tick is a small insect, its size is only 1 mm. Its coloring can be different. It hibernates in manure, in the upper balls of the soil, fallen leaves, in the corners of the greenhouse, feels good at temperatures from 23 ° C to 33 ° C and average air humidity, actively reproduces under these conditions. Lays 400 eggs at a time. A suitable place for it is under the leaves of plants, therefore, a tick on cucumbers in greenhouses most often settles, because here the microclimate is the most suitable for it.

Harm

The tick migrates quickly, so you need to start fighting this pest as soon as possible. The problem is that it is extremely difficult to identify a pest at an early stage of infection. In a week it will be visible already visually, and in a few more days all the leaves will be enveloped by an almost transparent cobweb. Young individuals will multiply in it, whole colonies will live.

If a tick has settled on cucumbers in a greenhouse, with regular inspection of the bushes, you can see the first signs of damage: white spots on the leaves.

If the foliage has completely turned white, the pest has already seriously damaged the plants. The mite feeds on the juice from the cells and with the rapid spread of pests, the culture quickly loses its vital juices and dies. In addition, it can infect cucumbers with gray mold bacteria, which makes plants weak and easily susceptible to other diseases.

Reproduction

At low temperatures, female spider mites do not give birth to offspring, but at this time they can move in the greenhouse, feed, destroying plants. If the distance is short, they are able to migrate from one greenhouse to another. They can even be carried by the wind to a neighboring site.

Ways to fight

If the spider mite still settled on cucumbers in the greenhouse, you need to take action. Simple spraying with water to increase humidity or using an ultraviolet lamp will not work.

Folk remedies

Plant infusions will help get rid of the tick

If the plant is not severely affected, you can try using traditional methods. Most often, infusions from plants containing substances harmful to the tick are used. They are used to treat diseased bushes.

1. Take half a bucket of marigold flowers and fill it with warm water. Defend for 2 days and add 40 g of laundry soap. The resulting solution is sprayed on the plants in the evening.
2. 1.2 kg of potato tops are insisted in a bucket of warm water for 4 hours. The affected areas of the plant are well moistened with this agent.
3. 4 kg of green tops of tomatoes are poured into 10 liters of water, boiled for 30 minutes, after which 40 g of laundry soap is added. Before processing, the plants are bred in half with water.
4. Apply 96% alcohol. Only the lesions are sprayed. Re-processing is carried out after 7 days, the final one - after another 8-10. When it gets colder, the intervals between spraying increase.
5. Moss is poured over with boiling water and dried. After washing, the bark is dried in an oven or microwave. Then they are laid on the soil under the plants.

Biological agents

If traditional methods do not help, you can add pests to the enemy's greenhouse. To do this, take several leaves on which the phytoseiulus mite is located. He eats a spider mite, with the result that the latter is able to disappear after 2 days.

Chemicals

The spider mite lives not only on plants in the greenhouse, it is also able to start on cucumbers in the open field.

In both cases, it is important to apply plant protection measures. Chemicals have a strong effect, but they can negatively affect human health, therefore, using chemistry, you should be extremely careful.

Spraying must be carried out each time with other preparations, since over time the mites develop resistance to them. It is required to give a sufficient dose in several applications to kill all pests, otherwise they will multiply again. In hot weather, the treatment is repeated a week later, since the female matures in 7-8 days and gives new offspring. These works are best done in the evening, when the heat subsides, so that the drug does not evaporate.

Acaricides

You can fight the tick with the help of the acaricide group. Among them are:

• Akarin is a drug of contact-intestinal action that kills ticks. Unsafe for humans, for three days after application.
• Apollo destroys the larvae and eggs of the pest, sterilizes the adults. Does not affect bees and insects. The solution is moistened with the affected areas of the plant.
• Fitoverm is an effective drug that is almost harmless to humans. The spraying action lasts 7 days, then the procedure is repeated.

Ground sulfur

You can do pollination with ground sulfur: 3-4 g per 1 sq. m.

Before using chemicals, you must carefully read the instructions. You should protect yourself with overalls.

All methods of dealing with spider mites on cucumbers, which are active in the greenhouse, have their pros and cons. Folk ones may not always be effective, chemical ones are too toxic. To choose the right product, you need to carefully monitor the plant and take into account all the recommendations.

Prophylaxis

To prevent infection of the culture and the spider pest mite in the greenhouse in cucumbers, you can apply some measures:

1. When growing cucumbers in greenhouse conditions, the humidity must be kept at 80-85%. It will be useful for a vegetable, but a tick will not live for a long time in such conditions.
2. Remove weeds from the beds in time.
3. Correctly maintain the distance when planting bushes, it is better to increase it. Greenhouses should be located one from one at a distance of more than 1 m. Then insects will not be able to move.
4. Alternate plants for planting in one area. It's good to replace cucumbers with tomatoes or cabbage.
5. Before sowing, it is worth digging up the ground.
6. Every few days, carry out a thorough examination of the plants, if they see the affected leaves, they must be picked and buried or burned. Thus, the spread of pests is prevented.

Conclusion

The problem of the defeat of cucumbers with a spider mite should be taken seriously, because it is not easy to neutralize it. It has a bad effect not only on the fruiting of the culture. If you do not apply timely means to combat the pest, the plant will die. A spider mite, settling in a greenhouse in cucumbers, firmly settles on the site and will not leave the favorable territory itself.