As soon as the first seedlings appear on the beds, or the seedlings are planted in a permanent place, the shoots are attacked by a huge number of small black bugs - the cruciferous flea. It happens that they need only a few days to make all plants useless for further growth.
Table of contents
What does crucifer flea look like?
There are several types of this harmful parasite:
- wavy;
- light-footed;
- notched;
- blue;
- black and others.
- Black block
- Blue flea
- Flea light-footed
- Notched flea
- Wavy flea
Beetles are painted in black, blue, green tones; two-colored insects are also found — a winding strip of yellow color is clearly visible on a black background. The length of insects is different - from 1.8 to 3 millimeters. The pest can be found in almost every region of the country, except the northern ones. He is rightly considered the most dangerous enemy for cruciferous plants.
For the first time, the diet of their food is made up of weed plants, but as soon as the seedlings appear on the beds, the flea goes to the garden plots, damaging the foliage of plants, leaving them with hollows, resembling ulcers. On young leaves, the holes of the flea gnaw through. The peak of their activity occurs in the morning and evening.
The female lays eggs in most cases directly on the ground. The larvae that emerged from them hid for the first time in the soil, feeding on the roots and roots of plants for several weeks. Then they pupate, and after one and a half weeks we can observe the appearance of a new batch of young beetles, actively destroying the plants.
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What plants does a pest infect?
The main objects for the nutrition of the flea chooses swede, leaf mustard, cabbage, cress, radish, turnip, horseradish, turnip, spinach. Cultivated flowers most often suffer from parasite alissums, gusts, matiolla.
How to deal with flea in the garden?
Experienced gardeners will always be able to protect their garden from the pest, using not only chemicals but also folk tricks to fight.
The use of special drugs
For the destruction of fleas are quite suitable insecticidal means known to many:
- Karbofos;
- Aktara;
- Decis;
- Sherpa;
- Arrivo.
- Aktara
- Arrivo
- Decis
- Malathion
- Sherpa
Any of the drugs can be purchased at a specialty store.It is best to treat the beds in the evening when the sun has already gone down. Fleas still remain on the foliage.
When working with chemical compounds, one should strictly adhere to the requirements of the instructions for their use.
Use of folk remedies
— wet environment - the easiest way. It should only be abundantly watered the beds, as the flea does not tolerate damp places;
— dry leaf pollination - performed with a gauze bag, which must be shaken over the plants. In the bag you can lay wood ash in its pure form or with the addition of tobacco dust. It is best to perform such procedures in the morning, so that the deterrent settles on the foliage wet from dew. The flea plant is afraid of dirty plants. By the way, the aisle can be treated with naphthalene or tobacco dust;
— the use of infusions and herbal decoctions:
- ash at the rate of 1 to 3 steamed with boiling water, infused for two days. In the infusion, add soap;
- garlic and tomato stepsons (one glass each) are skipped in a meat grinder. Everything is diluted in a ten-liter bucket of water, filtered.It is necessary to add a spoonful of soap. Before spraying, the solution should be slightly heated;
- the leaves and roots of a dandelion in the amount of five hundred grams are skipped in a meat grinder, everything is poured into a bucket of water, drained. It remains to pour a spoonful of soap, and you can use the infusion for processing;
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- two hundred grams of tobacco is poured with hot water (ten liters). On the resulting mixture, you must pour a spoonful of liquid soap;
- Pour a glass of ordinary vinegar into a bucket of water. You can replace it with a couple of spoons of essence;
- green wormwood is infused; you can add garlic, crushed in gruel (one hundred grams per bucket), into the water. Having filtered the infusion, they should be watered with small droplets of the plant;
- Four kilograms of potato tops are poured with ten liters of water, everything is brought to a boil. The broth is allowed to cool, filtered, diluted twice with water. Treatment should be carried out in the evening;
- the same recipe, only used tomato stepchildren.
Make flags of dense material, fasten them on sticks, spread something sticky with resin or grease. Flags need to wave over the planting, barely touching the leaves. The procedure is recommended to spend the day when it is very hot.
After wetting a piece of cloth in machine oil, place it next to the bed. Best of all, if such traps are arranged with an interval of three to four meters. After a couple of days, just turn the fabric to the other side.
Preventive methods of pest on plants
You should try to prevent the occurrence of the pest. It is necessary to constantly remove cruciferous weeds by all available means.
In the autumn season, the garden must be dug up.. This will help get rid of the flea, which will be on the surface and freeze in winter.
Do not neglect fertilizing plants with organic compounds, regular irrigation, loosening the soil. All this will help accelerate the development of plants.
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Some gardeners recommend combining planting cabbage, radishes and the rest of the cabbage with potatoes, garlic, dill, cumin. These plants emit phytoncides, deterring flea.
Remember that the fight with flea necessarily! This will help you to save the future harvest of not only vegetables, but also berries, strawberries for example. If you do not take timely action, then all plants will be destroyed in the early phase of their growth.