How to deal with aphids on cucumbers in a greenhouse

Fight against aphids on cucumbers in the greenhouse

Under the influence of aphids leaves on cucumbers turn white, yellow and curl. Vegetable culture stops growing, color The insects secrete sugar juice, due to which other pests appear on the plant, but thanks to some methods it is possible to fight aphids.

Prevention

To cucumbers no aphids appeared in the greenhouse, they need to ensure proper care. For this purpose, agricultural activities are carried out:

• Watering with warm water (at least 22 ° C) is carried out. If the air temperature has become lower, the number of irrigations must also be reduced.
• The seeds are treated with a manganese solution. Grains are kept in it for 15-20 minutes, no more.
• The soil is treated with caustic soda or bleach. You can use a sulfur checker to scare off parasites.
• Once a week they carefully examine each plant: this way you can quickly see aphids at the initial stage.
• Provide natural ventilation inside the greenhouse.
• Regularly fertilize the soil.

When aphids are detected at an early stage, the problem is really quickly fixed. The main thing is to stop the breeding process.

Use of insects and birds

Effective control of aphids on cucumbers in the greenhouse is carried out using insects and birds.

Ladybugs

Gardeners recommend planting mustard and dill next to cucumbers. These plants repel pests and are the staple food of ladybirds. 1 ladybug can destroy up to 50 aphids. In the larval stage, it removes up to 800 parasitic organisms.

Beetle flies

They are attracted by umbrella plants: fennel and parsley. Being larvae, they only eat small aphids. As adults, they are able to eliminate parasites of any size. In 2-3 weeks they can suck up to 500 aphids.

Birds

Sparrows and tits help get rid of aphids quickly enough. To attract them, birdhouses with grain are built and installed inside the greenhouse. It is important not to keep them indoors for too long (more than a week).

Chemical treatment

This method of control is used in extreme cases: when the number of parasites is too large and there is a real threat the death of cucumbers.The most harmless means is phosphorus-potassium fertilizer. It is made on the basis of the ingredients:

• 20 g of superphosphate;
• 10 g of sodium chloride;
• 1 bucket of warm water.

On the basis of the resulting liquid, foliar top dressing of cucumbers is carried out. The mixture is sprayed with leaves from below. Processing is repeated a week later until the ants and larvae of the aphids completely disappear.

It is permissible to use products that do not destroy the aphids, but infect it with various diseases. Aphids die a week later.

Often gardeners are afraid to fight against aphids with chemicals that are harmful to the human body. But preparations have already been created, after which the vegetable crop remains environmentally friendly:

• Ethnobacterin;
• Arrow;
• Fitoverm;
• Peretrum ;
• Acarin.

Do not apply the product immediately to all plants. First, it is advisable to test it on 2-4 bushes in order to check the reaction of insects. A month before the harvest, the chemical treatment is stopped.

Folk methods

Folk methods are more accessible and less costly. There are many recipes to fix aphid problems.

You can do without using chemical means

If the gardener categorically refuses to use chemicals, you can fight aphids without them.For example:

• washed the windows with a milky solution inside and outside the greenhouse;
• remove 5 cm of the topsoil from the garden;
• plant marigolds, mint, cilantro, mustard, which repels aphids.

You can plant plants that love pests: dill, beans, sow thistle. They will lose interest in cucumbers and switch to them.

Spraying with ash and soap

To create the product you will need 100 g of laundry soap diluted in 10 l of warm water.

There are other recipes:

• 300 g of tar soap is mixed with a bucket of water.
• 125 ml of liquid soap is mixed with 10 liters of warm water.
• 300 g of ash are boiled in a bucket of water for about half an hour. If desired, add 40 g of grated soap or use a pure ash solution.

Laundry soap should be grated on a coarse grater. In solutions involving both soap and ash, first dissolution of the first component is expected.

An ash-soap solution is used to spray all vegetables in the greenhouse.

Plant infusions

In large numbers, they cause burns on the leaves of cucumbers, they are dangerous not only for aphids, but also for other pests. If you do not follow the recipe, it is toxic to humans.

Onion

Take 25-30 g of onion heads, cut into small particles. It is permissible to add onion peel. Soak the components in 1 liter of water for 5-7 hours.

Add no more than 5 g of laundry soap.After 7 hours, the infusion is filtered and used.

Chamomile

It will take 100 g of dried grass and 100 g of chamomile inflorescences. They must be instructed in 1-2 liters of water for 12 hours. For spraying, you need to mix 1/3 of the solution with 3 l of warm water, add 10 g of grated laundry soap.

Another recipe – grind Caucasian chamomile flowers into powder, dilute the mixture in water. Use immediately after preparation.

Dandelions

400 g of fresh roots and 600 g of leaves need to be finely detailed, then pour 10 liters of warm, slightly warmed water. Insist for at least 3-4 hours.

Coniferous

There are many plant infusions for pest control

1 kg of pine needles are mixed in 4 liters of water, insisted for a week, stirring daily. Spraying is carried out in a ratio of 1: 1.

Tobacco

200 g of crushed tobacco leaves in dried form are placed in a container with 5 l of water, left to infuse for 2 days.

After 48 hours, bring to a boil in 10 l of water. Be sure to filter.

Garlic

500 garlic finely chopped, placed in a 3-liter jar and pour water. Tincture is maintained for 5 days.

60 g of the solution are mixed with 10 l of water. For spraying use spray guns.

Another remedy is made on the basis of husks from garlic:

• 150-160 g of husks are poured with 10 liters of warm water.
• They stand for 24 hours, it is allowed to boil slightly.
• Use immediately. Boil again is undesirable.

Marigold

Half a bucket (about 5 l) of dried flowers is poured into 4.5 l of water, left to infuse for 48 hours, 40 g of tar soap are added. Filter before use.

Pepper

1 kg of pods of hot red pepper or 300 g of dry pepper is mixed and infused in 10 l of water.

The solution and water are taken in the ratio 1: 10. Water only the leaves of the cucumbers.

Potato

1 kg of potato skins is needed, 0.8 kg of dry skins. They are finely chopped and soaked in 9-11 liters of water. The infusion time is 3-5 hours.

Conclusion

To get rid of aphids on cucumbers in the greenhouse is quite real. First you need to adhere to preventive measures: regularly wash windows, ventilate the room, loosen and fertilize the soil. A good option is to attract beneficial insects and birds or use other methods of control without chemistry.

If the aphids divorced too much, chemical spraying will help. If the gardener has detected pests at the initial stage, it is recommended to use alternative methods. Chamomile, potato, marigold and other infusions will be effective.