General information

Cruciferous flea: how to fight, means and drugs


Cruciferous flea is an insect pest very common in our latitudes. Getting into favorable conditions for themselves, these insects are able to completely destroy the seedlings of not only radish, but also young seedlings of cabbage, radish and other crops of the same family in a few days.

The pest wakes up after wintering, as soon as it begins to thaw the soil. In early spring, insects feed on cruciferous weeds, and with the advent of seedlings, vegetable crops of this family are happy to switch to them. That is why it is very important not to allow the mass multiplication of weeds in the garden beds, removing them in time.

Flea larvae, inhabiting the soil, feed on plant roots, and crops with root crops strike the root collar. As the larva develops and rises to the surface, it switches to young leaves, provoking their gradual drying and leading to the death of the whole plant. Sometimes a flea damages the plant at the growth point, which naturally destroys the plant. The pest is especially active during the dry, hot period.


Prevention measures in the fight against such a pest, like the cruciferous flea, are to process the seedlings in a timely manner. Including widely used folk remedies. For example, the flea is extremely disliked by naphthalene: you can “powder” the affected young radish with a mixture of road dust and naphthalene (in a 1: 1 ratio) with a bag of gauze. Another effective blend is tobacco dust, slaked lime and ash mixed in equal proportions.

Good results can be achieved by spraying. This way to process radish should be early in the morning, as they say, “according to the dew”. The tool, consisting of wood ash (one liter jar), water (3 liters) and a few tablespoons of liquid soap, can effectively scare off harmful bugs from your garden. But one-time processing is indispensable: this infusion of the seedlings must be sprayed every five days, the total number of treatments can reach six.

Another commonly available remedy that is widely used by gardeners to prevent pests of radish is ordinary acetic acid. The recipe of the preparation of the drug is simple: 1 cup of 9% vinegar diluted in 10 liters of water. The mixture obtained is sprayed with seedlings. Sometimes gardeners use garlic infusion, decoction of dandelion leaves or green wormwood as preventive measures. All these broths or infusions do not like pests-insects.

The geography of plantings allows to prevent the appearance of fleas on a radish: potatoes, tomatoes, dill or caraway seeds are planted around the cruciferous.

All these cultures release specific substances into the environment that are not strongly liked by bugs and midges. Some flowers have a similar effect, for example, the familiar marigolds or calendula.

Ways to fight

All of the above methods are suitable as preventive measures, they are unlikely to be used to combat a walking wreck.

The most effective method is treating plants with an insecticide, for example, with Inta-Vir. But you can resort to this tool with some restrictions:

  • the preparation is applicable only to medium-radish radish, whose ripening period is not less than 25 days, otherwise the lion’s share of the product will settle in the roots,
  • processing can be carried out exclusively on young shoots, until a root crop begins to form, and only in the case when the threat of destruction hangs over all shoots.

There is another, quite exotic, way of dealing with such a pest as a flea: radish seedlings are covered with white agrospanum.

If it is not very hot weather, then the plants under the shelter do not stretch out, and the flea on them does not start en masse. After the seedlings are sufficiently strong, covering material should be removed, and further processing of the beds should be done with wood ash.

And finally, some useful tips that will help you grow radishes healthy and healthy:

  • try to organize radish drip irrigation, so that the infusion of ash did not wash off the leaves at the first watering from above,
  • if cruciferous weeds of the cruciferous family grow near the radish beds, it will not be superfluous to treat them with special chemicals from pests,
  • You should not resort to specialized chemicals for pest control in early radish varieties: you will most likely get rid of the bugs, but pretty much “pump up” radishes with harmful substances that will not bring anything useful to you.

Cruciferous (cabbage) flea - description

The pest of a flea is a flying bug from 1.5 to 3 mm long with an oval oblong body and antennae no longer than a third of the body. Hind feet at the flea jumping. Types of flea are different coloring elytra - they can be black, striped or with a metallic sheen. Flea larvae feed on the thin roots of plants. The most harmful are wavy, blue, light-footed, notched and black flea. We will tell you about how to deal with bugs on cabbage and how to get rid of flea on other plants.

Cruciflo flea: portrait of a pest

The pest received the first part of its name due to gastronomic addictions - it prefers cruciferous plants to all other green crops. With pleasure the insect settles on the weeds of this species: colza, shepherd's bag, wild radish, yarutke. Among garden plants prefers cabbage, turnip, turnip. But the earliest feast suits on young and tender radish sprouts. The flea insect is called because of the jumping hind legs, like in fleas, although it has nothing to do with blood-sucking parasites.

Cruciferous flea is small - the body length is no more than 3 mm - a flying bug with an oval oblong body and long antennae. There are several varieties of these insects: wavy, light-footed, notched, black, blue, etc. First of all, they differ in the color of the elytra, which may be black, have a metallic sheen or longitudinal yellow stripes.

The pest belongs to the leaf beetles - it damages the leaves, scraping the upper layer of the leaf plate, gnawing in it the ulcer-grooves, and young greens can gnaw through. Insect larvae feed on thin roots of plants. They are the most dangerous pests of all cruciferous cultures and are widespread throughout the European part of our country, except in the regions of the Far North.

The bugs are most active in the period from 10 to 13 o'clock in the afternoon, as well as in the afternoons from 16 to 18 hours.

In winter, adults of the pest spend in plant debris, in the upper soil layer, can settle in the cracks of greenhouses and greenhouses. In early spring, as soon as the soil begins to thaw, the flea leaves the shelter and begins to actively feed. Then the females lay their eggs, the pest larvae settle for 2-3 weeks in the ground, then pupate, and after 1-2 weeks a new attack occurs on the plants of the already young beetles.

For the season cruciferous flea can give from one to three generations.

Signs of damage to radishes and damage from the cruciferous flea

Although cruciferous flea is also small in size, it is difficult not to notice its presence on radish plantings. It is expressed in the following features:

  • visual detection of insects, which at the slightest danger, jump in different directions,
  • small through holes appear on the leaves,
  • then most of the green plate is damaged, skeletalized, dries out gradually,
  • gnawed passages are visible inside the leaf pulp.
It is very easy to understand that cruciferous flea appeared on the radish: all the leaves of the plant are riddled, and small, shiny bugs jump between them

The danger of a pest is that in a short period of time it is able to completely destroy young shoots. Radish sprouts appear early, it is the first to take on the attack of the aggressor, because it is during the emergence of the crop seedlings that the cruciferous flea plants are activated after the winter period. The mass distribution of the pest is dangerous not only for young seedlings, but also for adult plants: beetles will eat the leaves and the top layer of the skin on the stems, and the larvae will damage the roots of the plant.

With pleasure the flea attacks even on hardened radish seedlings: it damages the buds, gnaws holes and holes in the pods.

Preventive Pest Control

Protect planting radishes from cruciferous flea must be in advance, without waiting for the appearance of the pest. We give a list of preventive measures that will help the gardener to prevent the small aggressor from being on the beds:

  • plant a radish next to coriander, garlic or dill planted under the winter. The smell of these plants scares cruciferous flea. If you are planting radishes at the end of summer, then plant it near marigolds, nasturtium or calendula. Repellent plants release substances into the air that leaf beetles do not tolerate,
  • add to the water for irrigation strongly smelling means: carvalol, valerian tincture, fir oil (10-15 drops per bucket of water). The flea does not like strong smells,
  • lay on the garden freshly picked wormwood,
  • a bed with a radish can be muzzled with branches of tansy, broken off by tomato stepsons,
  • remove weeds regularly,
  • make a mandatory autumn digging garden. The bugs remaining for the winter in the soil will be close to the surface and will die during the cold snap,
  • provide the plants with enough nutrients to grow strong and strong. Well-developed shrubs are less attractive to the pest than weak or small ones,
  • Sow the radish as early as possible while the pest is still in hibernation.
Compliance with agrotechnical measures in the cultivation of radishes is one of the conditions for protecting it from pests.

Some gardeners advise on the perimeter of the site occupied by radishes, specifically plant weeds from the cruciferous family. This measure allegedly distracts the pest from cultivated plantations. Such a step must be recognized as extremely risky, because the cruciferous flea cannot explain which plants are meant for it and which owner grows for its own consumption.

Folk remedies for scaring and removing the cruciferous flea

Many gardeners deliberately refuse to use chemicals to protect radish from pests and diseases and at the same time achieve positive results. The proposed recipes are suitable primarily for those who can devote a lot of time to their garden and carry out these treatments not once, but systematically, evaluating the results and changing, if necessary, the compositions and methods used. We give the most simple and common folk remedies for cruciferous flea.

Growing in a wet environment

The pest likes dry and hot weather, and dampness does not tolerate well. Therefore, it is recommended to choose the wettest areas of a vegetable garden for sowing radishes, as well as plenty of watering seedlings. In water for watering radishes, you can add a few drops of a substance with a strong odor, such as valerian tincture or fir oil

Dry pollination of planting with various mixtures

Experienced gardeners claim that the cruciferous pest does not like to eat dirty leaves. Therefore, the most common method of scaring fleas is pollination landings. For this procedure, you can use a mixture of different compositions:

  • ash + tobacco dust,
  • ash + lime,
  • ash + road dust.

All components are taken in equal proportions. Pollination has an effect if it is carried out in the early morning when there is dew on the leaves, or after watering the plants. To powder lay down a thin and even layer, it is poured into a gauze bag and gently shake over the leaves. If dusting is done after moistening the bed, then particles of ash and dust adhere to the leaves for a long time.

It is not necessary to wait for a single pollination of a special protective effect. It can effectively protect the planting of radishes only if it is carried out regularly, after each rain or watering. Another condition for efficiency is thorough processing when dusting not only the upper but also the lower part of the sheet plate.

Shelter radish seedlings nonwoven fabric

For this purpose, spunbond, lutrasil, etc., are well suited, which pass light, air and moisture well, but do not allow fleas to reach young plants. And if the bed before the shelter is powdered with ashes, then the effect of double protection will be obtained. When the seedlings grow, their leaves will harden and will not be so attractive to the pest, the shelter can be removed. Light and durable canvas reliably protects not only from cold and weeds, but also from numerous pests

Pest traps

Catching cruciferous flea can be done with a sticky flag. Do this as follows:

  1. Take a piece of cloth and fasten it on a stick.
  2. Then cover the fabric with any adhesive substance (for example, grease).
  3. Pass along the beds, lightly touching the cloth leaves of radishes.
  4. Since disturbed insects usually jump or fly away from danger, they will fall onto the adhesive layer.

I catch fleas better in the heat of the day in hot and dry weather. Above the bed you have to go several times at short intervals.

Catching with the help of an improvised sticky flag significantly reduces the number of cruciferous flea on a bed of radishes.

Traps for flea beetles can be arranged using used engine oil. In this product, the fabric is moistened and laid out on cardboard or trimmed boards every 3-4 m near the bed with planted radishes. For greater efficiency, such traps need to be turned over once or twice a day.

Spraying with herbs decoction and other infusions

Ash and tobacco can be used not only in a dry form, but also to make infusions from them:

  • 1 liter of boiling water + a glass of ash insist for two days, add liquid or grated soap, stir and use for spraying,
  • 200 g of tobacco dust is poured with a bucket of hot water, infused over the course of a day, 100 g of soap are added, filtered and the radish is processed.

Among other popular formulations for spraying radish from a cruciferous flea you can name the following:

  • 1 cup minced garlic + 1 cup tomato sachets pour 10 liters of warm water, infuse for 6 hours, strain, add 1 tbsp. spoon of liquid soap
  • Add 1 cup of 9% vinegar to a bucket of water. Processing of this composition should be carried out in dry weather,
  • chopped roots and leaves of dandelion (500 g) infuse for 4 hours in a bucket of water, strain, add 1 tbsp. spoon of liquid soap
  • potato tops (2 kg) pour a bucket of water, boil, strain, add 1 tbsp. spoon of liquid soap. Spray better in the evening. Instead of potato tops, you can use stepchildren tomatoes.

All the above compositions were tested by hundreds of gardeners. Someone did well with the pest ash, someone prefers vinegar spraying, but one can definitely say the following: in order to determine an effective method for your garden, you need to try several ways, and then the pest will retreat.

Tips seasoned gardeners

Last year I read in a newspaper, a tube of toothpaste was squeezed into a bucket of water, and so it was watered and sprayed. I tried on Peking cabbage. 3-4 days flea no. Then you need to repeat.


I scattered everything with tooth powder, it became much less!


Acetic essence, 1 tsp 2 l bottle - daily spraying.


I sprinkled radish with a mixture of red and black pepper, sprinkled it very strongly and did not touch the blatant radish.


Last year she experimented. Three times with an interval of 8-10 days a solution of flea shampoo for animals was sprayed. Fleece was not! But ash and vinegar did not help. Dissolve 3 spoons on an 8 liter sprayer.


It helps very well in combating cruciferous mustard powder: to powder the ground around the plant and lightly the plant itself. For broad natures, black ground pepper is suitable. It has also been tested, but it turns out to be dainty ...


We are fighting with cruciferous fleas in two ways. First, we dust the bed with ashes. The second, all the vegetable "young" that the flea loves, we cover immediately with non-woven material. According to my observations, cruciferous flea affects mainly young shoots, growing cabbage seedlings under any covering material, we successfully avoid cruciferous flea on cabbage and radish.


I plant a second year salad in a radish. Не могу сказать, что совсем ее на этой грядке не вижу, но то что блохи гораздо меньше и молодняк успевает окрепнуть, пока его не съели, — это точно. Советую попробовать.


В книге ‘Удивительный мир жуков’ прочитал, как с крестоцветной блошкой справлялись русские крестьяне. They sowed large areas of cabbage, cruciferous flea was already then, but there were no chemicals. The peasants did the following: they took a stick, attached a canvas to it (it produced a construction in the form of a flag), the upper part of the flag was smeared with sticky substance (a kind of tar). A man took a stick in his hand and passing along the garden, the lower part of the canvas was walking along the leaves of cabbage, fleas flew up and stuck. After the fleas accumulated a lot, they were cleaned, the canvas was smeared again, etc. This had to be done every day (in hot and dry weather). The Germans borrowed this idea, only the peasant was replaced with a horse, i.e. they made horse traction. In both! And no chemistry!


A good result is obtained by treating the leaves of radish (and other cruciferous) with tansy powder (rowan). The baskets prepared during flowering are dried, ground in a mortar to obtain a powder that plants are pollinated with - 10 g of powder (matchbox) per 1 m2. The odorous substances contained in the powder deter pests. You can catch cruciferous flea with a piece of cloth, abundantly soaked in used automotive or diesel oil. The fabric impregnated with oil should be laid out on trays placed on ridges every 4 m. After 3 days, the fabric should be turned over. It is possible to scare off cruciferous flea and powder made from celandine, if fumigating or pollinating them plants. As you can see, you can completely do without pesticides. At the same time, you will save both the environment and your own health by eating organic vegetables.


Chemical Remedies

Specialized outlets offer a large selection of pest control products, including cruciferous flea. Among the most popular are:

  • Actellic,
  • Karbofos,
  • Aktar,
  • Decis,
  • Bankol,
  • Fastak
  • Karate, etc.
Chemical treatment is carried out only in case of emergency and in compliance with all safety rules.

Radish is treated with these preparations in dry, windless weather, preferably in the evening, when most pests sit on radish leaves.

Considering that the vegetable belongs to early-ripening crops, and it is possible to use the products from the garden after the treatment with chemical preparations no sooner than in 20-25 days, the use of insecticides in the case of radish should be considered extremely undesirable.

Video: cruciferous flea - control and prevention measures

Cruciferous flea - the most dangerous insects for radishes. But if you follow preventive measures, as well as know and use ways to combat them, you can avoid problems with this early vegetable and grow a decent and tasty harvest.

What a cruciferous flea looks like

This insect has a tiny size - only 2-3 mm and inconspicuous black color, and therefore often goes unnoticed until it spoils the plant. In rare species there are yellowish stripes on the backs.

On the radish, fleas appear as soon as the tops begin to grow: they move to it from weeds - yarutki, colza, etc. Insects prefer cruciferous vegetables - cabbage, turnip, radish, etc., for which they received their name.

The larvae of bugs feed on the roots and fruits of plants. When they turn into adult pests, they eat the leaves and points of growth of radish.

If you do not fight the cruciferous flea on a radish, it will turn the leaves into a sieve, and the tops will dry. While the adult insects eat the leaves, their larvae attack the tender roots. The double onslaught of the pest is capable of destroying radish plantings in three days, so you need to constantly look closely at the plants for identifying bugs and know how to process radishes from a flea.

Signs of the appearance of cruciferous flea on radish

Signs of the appearance of cruciferous flea on radish

Before you learn how to deal with flax flea on a radish, find out what are the signs of damage to plants by these insects:

  • Tiny bugs begin to jump in different directions along the leaves if you touch a radish.
  • The leaves of the radish are in the hole: what to do, find out next.
  • The foliage becomes thinner, skeletonized, and mined (gnawed passages are formed inside them).

Having revealed any sign, it is necessary to urgently process all the radish beds with a folk or chemical remedy for fleas, otherwise there is no harvest.

About cruciferous flea

Cruciferous flea is a very small and very dangerous pest, which in the wild nature feeds mainly on cruciferous weeds, for example, colza, mustard. In the garden, the pest enjoyed the cruciferous vegetables: cabbage, radish, horseradish, radish, etc. (perhaps, hence the name of the pest).

Fleas usually wake up in the spring and begin to actively lay eggs. As they develop, they are just as actively eating up young and just started their development culture. The pest looks like a small bug with a dense dark body. Differs in good jumping ability.

Its appearance in the garden marks the eating of tender, succulent leaves from the above crops, and when it finally destroys them, it switches to the root system of the plant, after which it simply cannot survive.

Council The pest behaves especially aggressively in dry and hot weather, so special attention should be paid to cruciferous crops (and radishes, among others) during this period.

Pest control methods

Quite often, the cruciferous flea is destroyed with the help of chemicals, but radish is considered an early ripening crop compared to most other garden crops, therefore such methods of pest control are completely unacceptable.

Since chemistry can not be used to destroy fleas, it remains to use the popular time-tested tips. So, you can try the following methods:

  • The ash-and-tobacco mixture perfectly helps to protect the young plant that has just entered the growing season. You just need to mix the ingredients thoroughly and sprinkle with the mixture of the beds. This is an excellent preventive measure that will both protect against flea and feed the soil.
  • Tobacco dust / ground black pepper should be used after the appearance of young tops. It is advisable to carry out the procedure regularly at intervals of a week.

  • Traps are also a good way to control insect pests. The main thing in creating an effective trap is fantasy and well-chosen configuration. The easiest option trap - awning directly above the beds. Its bottom side should be lubricated with any harmless sticky compound. In a couple of days it will be possible to harvest.
  • Spraying helps a lot, but only when a flea has already been found on the beds. You can use the water-vinegar composition (10 liters of water used 1 liter of vinegar). Also perfect is a decoction of tomato tops and laundry soap (half a piece will be enough for a bucket of broth).

As for the causes of the appearance of fleas in the garden plot, it is difficult to single out any obvious ones. We can only assume that the pest appears on the site due to the lack of moisture in the soil, because, as mentioned earlier, the pest loves drought. Therefore, try to water the radish regularly and in general, it is better to plant it in a shady, damp place. Good luck!

Flea on cabbage - how to get rid of.

A cruciferous flea appears on cabbage when the air temperature rises to 15 ºC - beetles overwinter in the surface layer of the soil or under plant debris. Damage caused by cabbage plants to the flowers may look like ulcerous gnawing, skeletization, or inter-vein bites. With severe damage to the leaves, they dry up, and this leads to the death of the plant. Dangerous flea on cabbage at an early stage of plant development: beetles damage the surface of the stems and leaves, and this causes sores that turn into holes - the leaves turn yellow, and damaged seedlings can die in a few days, especially if the weather is warm.

Destroy fleas need immediately, without hesitation. How to treat cabbage from fleas? For early-ripening varieties, it is better to use folk remedies, since they are less toxic - weekly spraying with vinegar, ash or tobacco extract or decoction of tomato tops. And for the treatment of mid-ripening and late varieties, you can use chemical agents from flea beetles - Aktar, Aktellik, Decis, Karate or Bankol.

Fleas on a radish or, for example, flea on a radish or other root cruciferous crops are no less dangerous than on a cabbage, because they damage the roots of the vegetables, damaging the leaves. It is necessary to destroy pests as soon as they appear. For a complete victory over cruciferous flea need to spend a few treatments.

Fleas on other cultures.

Cabbage flea does its destructive work not only on cruciferous crops. It also damages roses, flowers and chrysanthemums. How to deal with cruciferous flea on flowers? The same means as on cabbage cultures, but in this case insecticides can be used more boldly.

The treatment of fleas is carried out in the evening, after sunset, when insects sit on the leaves of plants.

Remedies for fleas (drugs).

For the destruction of cruciferous flea such insecticides are most often used:

  • Aktara - systemic insecticide of contact-intestinal action from many types of pests, including sucking and concealed,
  • Actellic - non-systemic organophosphorus insecticide acaricide of contact-intestinal action, used to combat sucking and leaf-eating pests,
  • Karate - the combined contact and system insecticide from the gnawing and sucking insects,
  • Bankol - an insecticide of contact-intestinal action against gnawing and sucking pests,
  • Decis - insecticide of contact-intestinal action of a wide spectrum from the group of pyrethroids. Effectively destroys the beetles, lepidoptera and even-winged pests.

In addition to the described insecticides, Inta-Vir, Mospilan, Fitoverm and the like can be used against the cruciferous flea.

Fighting flea folk remedies.

To the processing of vegetables from cruciferous flea toxic chemicals for humans and beneficial insects chemical means should be resorted to only as a last resort. It is better to use in the fight against the pest not so dangerous to health, but no less effective and time-tested means. How to get rid of cabbage flea, without resorting to chemicals? We offer you the popular ways of destroying the cruciferous flea:

  • - freshly planted seedlings need to be powdered with wood ash or a mixture of ashes with tobacco dust in equal parts. This should be done in dry weather, if according to the forecast it is not expected to rain. Treatment is repeated three times with an interval of 4-5 days. To cover the composition of the leaves of plants need from the top and from the bottom side,
  • - treat the vegetables with a decoction of tomato tops: 4 kg of fresh tops or 2 kg of dry need to be crushed and pour 4 liters of water for 4 hours, then simmer for half an hour, cool, drain, dilute with water 1: 1 and add 40 g of liquid or grated soap . Spend three sessions of this treatment at intervals of 3-4 days,
  • - scroll through a meat grinder a glass of tomato tops and a glass of garlic, pour this stuffing with 10 liters of warm water, strain, add a tablespoon of liquid soap and process the plants with this composition,
  • - chop half a kilogram of dandelion roots and leaves, dilute with 10 liters of water, strain and add soap,
  • - two glasses of wood ash need to insist in 10 liters of water for 2 days, then carefully drain the water and add a quarter of the bar of rubbed tar soap to it,
  • - 200 g of tobacco fill a bucket of hot water, let cool, strain, add a tablespoon of liquid soap or dishwashing detergent,

  • - Pour a glass of 9% vinegar or 2 tablespoons of vinegar essence in a bucket with water, stir and rub the leaves,
  • - one kilogram of chopped wormwood boil for 10-15 minutes over low heat in two liters of water, cool, add 100 g of minced garlic, strain and bring the amount of broth to 10 liters,
  • - 4 kg of potato tops pour 10 liters of water, simmer for 30 minutes, cool, strain, dilute with water twice and process the plants in the evening,
  • - An infusion of chicken manure, prepared in a ratio of 1:20, must be kept for a week in the open air, then strain and sprinkle with the leaves of the plant. This anti-flea remedy nourishes plants at the same time,
  • - Dissolve 2 tablespoons of flea shampoo from the pet shop in a bucket of water and treat the plants with this anti-flea medicine,
  • - make a flag of thin plywood or cardboard, cover it with resin or grease and walk along the rows with cabbage, waving the flag and touching the leaves of the plants with it. Aroused flea will jump and stick to the flag. For a few such raids, the number of pests in the garden and in the flower garden will be significantly reduced,
  • - moisten the pieces of fabric in diesel or used motor oil well, spread them out on cardboard sheets between the rows on a bed of cabbage crops at a distance of 4 m. After 2-3 days, turn the pieces on the other side to collect as many flea beads on the fabric.

Cabbage flea - preventive treatment

Everyone knows that it is better to prevent the appearance of pests than to fight them. Here is a list of preventive measures that will help you prevent cruciferous flea in the garden:

  • - Cover the seedlings just planted in the ground with non-woven material. When the seedlings become stronger, and its leaves become rough and lose their attractiveness for fleas, the coating can be removed,
  • - plant cabbage next to the already sprinkled garlic, coriander or dill, the smell of which frightens the flea. For late cruciferous crops, mixed plantations with marigolds, nasturtiums, or calendula will be salutary,
  • - lay a bunch of fresh wormwood between the rows of cruciferous crops every day,
  • - add to the water for irrigation aromatic products - fir or pine oil, Corvalol or valerian tincture at the rate of 10-15 drops per bucket of water.

In order to reduce the risk of the appearance of cabbage flea in the garden to a minimum, it is necessary to observe the following agrotechnical rules:

  • - timely and regularly remove weeds in which flea lives:
  • - in the fall, after harvesting, dig the soil in the area,
  • - to water and feed the plants in a timely manner in order to accelerate their growth and make them unattractive for fleas,
  • - plant seedlings into the ground as early as possible, while the flea has not woken up yet, or at the end of June, when it is not so terrible with crucifers.

Black Fleece Insecticides

How to deal with fleas on the radish with the help of chemical insecticides, if folk remedies do not help? The following chemicals of the type “Karate”, “Aktellika”, “Aktara”, “Intavira”, “Bankola”, “Tabazola” or “Kaiser” are recognized as the most active drugs against this pest.

Some gardeners, wondering how to save the radish from the black flea, successfully apply dog ​​flea shampoos, diluting two caps of water in 10 liters of water and spraying plantings.

Application rules for insecticides on radishes

  • Observe the proportions of dilution of chemicals: dissolve and apply them strictly according to the instructions indicated on the package. Their concentration can vary greatly, for example, for a solution of "Karate" you will need 2.5 ml per 10 liters of water, and Aktellika 20 ml for the same amount of water.
  • We process vegetables with chemicals only in the mid-season and late radish, ripening not earlier than 25 days, and exclusively on young plants.

  • If on the radish is a flea plant, we first process several plants for a sample, and see what happens next day: if the seedlings are not swept, a solution can be used for all plantings.
  • We fight with cruciferous fleas on a radish after sunset, when insects sit quietly on the tops.
  • We spray the plants on a fine day so that the rain does not wash the chemicals from the leaves of the radish in the hole. What if the rain did pass? Repeat the processing of crops.
  • We follow safety precautions and do not spray radish ridges without using gloves and a respirator, otherwise we risk poisoning or getting burned.

After chemical treatment, radishes can be eaten only after a month, when all the nitrates introduced by the preparations come out of the root crops.

Methods of dealing with cruciferous fleas on a radish

Folk remedies against black flea

How to deal with cruciferous flea on a radish, if you do not want to wait for a long withdrawal of nitrates that have penetrated the fruits and leaves after chemical treatment? Apply proven folk remedies for black flea:

  • Solanaceae plant. Insist 3 kg of tops of potatoes or tomatoes (dry or fresh) in 10 liters of water for 4 hours, boil for 10 minutes, cool and filter. Dilute the product with water in a ratio of 1 to 1, dissolve the grated laundry soap in it (0.5 piece) and spray the affected plants.

  • Dandelion. We collect half a kilogram of roots and foliage of dandelions, insist day for 10 liters of water and spray the planting.
  • Powders. Если не ясно, что делать, когда на редиске черные блошки, присыпаем землю пылью от табака, золой, либо нафталином: получится и инсектицид, и подкормка. Повторяем присыпку каждые 4 дня пять раз.
  • Перец и известь. Рано утром посыпаем листочки редиса гашеной известкой либо порошком черного перца.

You can also install traps for bugs, wetting the fabric with used engine oil, and spreading it on cardboard between the ridges with radishes. After a couple of days we turn the fabric on the other side and leave for another couple of days. Fleas are stuck to the oil.

Preventive control of cruciferous fleas on radishes

In order not to wrestle with how to save radishes from a black flea and not to apply chemical insecticides, we promptly prevent the appearance of a pest.

How to deal with cruciferous fleas on a radish

There are several preventive measures for fleas:

  • Planting fragrant neighbors. This insect does not tolerate the smell of garlic, potatoes, tomatoes, cumin, coriander, dill and nasturtium. We plant them in the neighborhood, and we forget about fleas.
  • Destruction of cruciferous weeds. The site should not be wild radish and other cruciferous weeds, because they attract bugs, and those with the appearance of radish leaves move from weeds to them.
  • Landing in a wet area. Radish loves wet places, but cruciferous flea does not.
  • Autumn digging. Be sure to dig up the ground in the fall under the spring sowing of radish: flea, hiding in the ground for wintering, will die in the cold.
  • Proper care. Feeding vegetables with ashes, regular and uniform watering and loosening accelerate the growth of radish and the coarsening of the leaves. Insects prefer tender leaves.

Some gardeners grow radish under a transparent covering material such as lutrasil or spunbond, without removing it all the time. The material well passes light, water and oxygen, and protects planting from various pests.

Now I understand how to deal with the cruciferous flea on a radish with the help of chemical and folk remedies, and how to prevent its occurrence. Having saved the plants from the insidious enemy, which affects both the tops and the roots, we get a quality harvest of tasty juicy radishes.