Onion fly: how to deal with it in the garden and in the greenhouse

onion fly how to deal with it
Onion fly how to deal with it

Hello! This season I was almost left without a crop of onions. And at first, nothing portended such a turn of events.

The bed was carefully prepared, I constantly looked after her. But at some point the appearance of the onion fly blinked.

And when I found it, my bow was already seriously damaged. Fortunately, I managed to save my harvest, although I had to seriously try. Want to know all the details about the onion fly, how to deal with it? Now I will provide you with detailed information on this issue.

Onion fly and how to deal with it to protect onions and garlic

One of the most malicious pests of onions and garlic is onion fly. How to deal with it? How to protect the planting of onions and garlic that suffer from it? Today's article is about the fly itself and about a small but dangerous pest - the white worm, namely the onion fly larva, since it infects the plants.

Important!
Onion and garlic plants are quite vulnerable to pests and diseases. Stem nematode, onion root mite, onion miner, onion leaf beetle, onion leaf flap, onion moth and a number of other pests are also the most malicious. The harm caused by them, quite substantial, sometimes leads to the loss of the whole crop.

Onion fly is a small insect that very much resembles an ordinary fly with a length of 6-7 mm ash color. Winters in the pupal stage. Flies with the establishment of constant heat in late April - early May, the flight of onion flies coincides with the flowering of cherries.

Lays very small eggs near onion plants. On the 3rd - 8th day, small larvae hatch, which bite into the bulbs through the base of the leaves or through the bottom, near the roots of the bulb. Until the end of development, it is in the middle of the bulb, feeding on their contents.

Chemical preparations are strictly contraindicated for processing onions and garlic, as this can cause serious harm to human health.

Therefore, to prevent and control pests, it is important to observe agrotechnical requirements: - onion and garlic should be grown on the same place no more than once every 4-5 years; -use of such predecessors as cabbage, cucumbers, tomatoes; - Use only healthy material for planting.

Before planting, onion sets must be disinfected in hot water at a temperature of 45-46 degrees Celsius for 10-15 minutes, at 50-52 degrees - for 3-5 minutes, garlic - for 2 hours at a temperature of 40 degrees. Sick bulbs are discarded before planting.

It is necessary to remove garlic in dry weather, and it is necessary to dry until the leaves are dry and dry covering scales are formed.

Everything described above refers to preventive measures, and what are the measures to combat the onion fly. For onions and garlic, onion flies are a dangerous pest.Its larvae penetrate the bulb through the bottom or at the base of the leaves. Damaged bulbs rot, leaves fade, withering begins with the whitening of the tips - this is a clear sign that the onion fly larva is already doing its “black deed”.

Advice!
Knowing the time of onion fly departure, you can repel this pest with a mixture of tobacco dust and sunflower ash, for example, in a 1: 1 ratio - pollinate the soil between the rows, or use a mixture of tobacco dust and slaked lime. All this can be purchased at gardening stores.

Mixed crops also give a good result - onions and carrots are planted on one bed: carrots volatiles repel the onion fly, and onion volatiles repel the carrot fly. Here is such a mutual protection.

By the way, sunflower ash is an effective potassium-magnesium fertilizer that does not contain chlorine, helps to reduce the acidity of the soil. For potatoes and vegetables, add 70-100 gr. per 1 square. m., under fruit trees and shrubs - 120-150 gr. on 1 sq.m. For feeding vegetables use 200-250 gr. for 10 liters of water.

Well, if the timing of the preventive measures was missed, or the measures taken were ineffective, and the onion fly nevertheless left offspring, then a very good remedy for the onion fly is carbon ammonium salt, nitrogen fertilizer, which allows, with foliar feeding, to effectively fight onion fly, allows you to reduce the level of damage by powdery mildew, to fight with brown and yellow spotting.

How to get rid of an onion pest

Onion flies are gray and medium-sized insects that are not always noticeable in the beds of your garden, but which can subsequently spoil the crop.

It is with her every year that many gardeners and gardeners encounter. Therefore, in this article I decided to talk about how to deal with onion flies using folk methods.

It is a mistake to assume that an onion fly spoils only onions. Yes, it should be noted that it is onion that is its main dish. But besides onions, onion flies also prefer shallots, leeks, chives, and sometimes she does not refuse to eat garlic.

That is, if different types of onions grow in your garden, then they can be subject to attack by this pest. Therefore, you must know how to deal with onion flies.

The onion fly wakes up and begins to fly when the cherry trees begin to bloom. This happens around mid-May. During this period of time, they are very inactive, so they can be easily caught. But with the onset of June, the female individuals of this pest begin to lay their eggs in the soil, in the garden where the onion was planted.

Also, an onion fly may lay eggs directly on the onion shoots. Larvae are born around the seventh day. These small worms immediately begin to penetrate the neck of the onion, where they eat fleshy scales.

Attention!
After the worm damages the flesh, it begins to damage the root neck. Then the worm moves to the next plant and eventually destroy the entire garden.

With light damage to the onion - an onion fly, it shows a slight yellowness and drying of the tips of the feathers. This is an outward sign of failure. But the bulbs affected by the larvae just begin to rot.

After about one month, the larva leaves in the ground to pupate. After the next generation appears, and onion flies continue to destroy onions.

Methods of struggle

Onion flies, like any other pest, cause a lot of trouble to gardeners. Destroying it is quite simple. There are a couple of time-tested fighting methods that bring a good effect.

And by the way, you don’t need to use different chemicals, because in any case they accumulate in the onion itself and as a result, the onion is then not suitable for food.

Consider a method using ordinary saline. Onion fly is very sensitive to salt.For the solution we need 300 grams of table salt, dissolved in ten liters of water. With this solution, it is necessary to water the onion when its seedlings are 5 cm high.

Four hours after the procedure, they must be washed well with plain water to completely wash off the salt. Repeat the procedure ten days after the first.

This time, the amount of salt needs to be increased. For ten liters of water, now you need 400 grams of table salt. Many recommend doing triple treatment immediately, three weeks after the previous one, but in this case, ten gallons of water will need 600 g of salt.

Many gardeners to combat the onion fly, recommend using lime fluff, ash, tobacco dust. You can use tobacco dust as an independent tool, or together with lime.

Important!
The above substances, it is necessary to sprinkle soil around the onion. And by the way, if you use ash, it will not only fight the pest, but also fertilize the earth.

So, it is still better to carry out prophylaxis than to lose the crop later. Therefore, remember a few basic rules:

  1. Change the place of onion planting, never plant on the same place for 2 years in a row.
  2. Always do a crop rotation.
  3. Return the onion, preferably to its place only after four years.
  4. This pest does not like the smell of carrots, so try to alternate the beds. That is, between the beds of onions, sow the beds with carrots.
  5. The onion fly wintered at a depth of about 20 cm, so for the winter dig deeply the earth and remove any organic debris so that the pests could not eat.

How to deal with onion flies?

Not all summer residents know how to deal with onion flies without pesticides. There are several simple ways to get rid of the pest - they are given in this article.

Onion fly - a pest insect known to every summer resident. Many struggle with it by spraying plants with pesticides, but it’s best not to. Suppose that killing a tiny booger does not bring significant harm to a person - but pickled onions will not bring any benefits either.

Anyone who cares about their health and the well-being of their loved ones, about the quality and environmental friendliness of the crop, is better to use folk remedies against the onion fly: they are not dangerous to anyone except the pest.

In general, it is most effective to deal with the onion fly comprehensively: not creating favorable conditions for its appearance on its plot, processing the seeder before planting, harassing the larvae if they did appear. Probably, some of the readers may think that they have a huge amount of work to do - but this is not so. All means are quite simple.

Methods of struggle

There are many methods for dealing with onion flies, but the basis for the campaign to save the crop is the rules for planting onions and tillage.

The main method of combating onion flies at the stage of spring preparation of a summer cottage plot for sowing is to arrange beds with onions next to carrot beds. An amazing mystery of nature: onion fly does not tolerate the smell of carrots, and carrot does not settle next to onions.

Advice!
These plants protect each other. Experienced summer residents do this: alternate two cultures on one site - the first bed follows the second bed. In this case, the likelihood of pests is minimal. Also, the onion fly does not like the smell of tomatoes, ledum and lovage.

Another trick: do not plant onions every year in the same place. By the way, this is true for many other cultures. If a parasite has chosen a specific area, then it will winter on it - in order to crawl out of the mink in the spring and begin to spoil your crop. So your task is to "hide" the onion from the fly, planting it in another place.

If you buy a seeder on the market or from other summer residents, there is a possibility that it is infected with onion fly larvae.Therefore, review the onions for their integrity: those that have traces of decay in the region of the bottom, it is better to destroy.

Before sowing, it should be treated with a solution of manganese (a teaspoon in a bucket of water) for half an hour. Another way to disinfect sevoc is to lower it in hot water (about 50 degrees) for 10-15 minutes.

Also a preventive measure against the pest is to spray the area with a salt solution. What is important: excessive salinization of the soil is not good, therefore, in this method of dealing with onion flies, the main thing is not to overdo it.

We carry out processing no more than three times a year, with such a frequency:

  • The first treatment is when the sprouts reach 5 cm in height (the proportion of the solution is a third of a pack of salt per bucket of water);
  • The second - two weeks after the first treatment (half a pack of salt in a bucket of water);
  • The third - in another three weeks (two-thirds of a pack of salt in a bucket of water).

We do not water the earth, but spray it abundantly - use a spray gun. After processing, each time, carefully wash off the salt from the sprouts. After 3-4 hours, pour them with clean water under the root.

How to get rid of a pest if it has already appeared?

How to get rid of an onion fly if you notice it in your beds? Choose any of the tips below - and the parasite will not bother you anymore.

If the above precautionary methods were not followed, and the onion fly still appeared - it does not matter, it is not difficult to lime it in this case. But first of all, you should pay a couple of lines to the description of the pest itself - because you must know the enemy in person.

Attention!
Unlike the Colorado potato beetle, the onion fly cannot boast a conspicuous appearance: it is gray, 5-10 mm in length, almost indistinguishable from a regular house fly.

But if you find insects that fit this description on onion beds, or their larvae (tiny white worms) in the flesh of an onion, urgently take on saving your harvest.

Usually they get rid of the onion fly by spraying the beds with something odorous: coniferous or mint tincture, a decoction of wormwood and valerian. Since this method is completely harmless to both soil and onion, treatment can (and even need) to be carried out often.

If the treatment needs to be carried out quickly, and there are no suitable herbs at hand, dilute a fifty-gram piece of laundry soap in a bucket of water and spray the area.

Best remedy

What remedy for onion flies to choose? Best of all, one that not only eliminates the pest, but also benefits the soil by fertilizing it.

Ash is an excellent fertilizer, and at the same time, an effective remedy for onion flies. Just collect dead wood weeds, tree branches, burn in a bonfire, collect ashes, dilute it in water and pour the beds with it.

To improve the effect, manure, grated tobacco leaves (the so-called "tobacco dust" can be bought at gardening stores) and red pepper powder are added to the solution. Manure, like ash, is a “two in one” product in itself - a fertilizer that repels pests.

Because it is often scattered in dry form on the site in the spring, before sowing. Peat is used less often for the same purposes - but not because of its lesser effectiveness, but because it can not be obtained for free in all regions of the country.

Effective Ways to Fight Onion Fly

The onion fly occupies a place of honor in the list of “class” enemies of each gardener. Its larvae devour not only onions and garlic, but also tulips, for which there is a place even in tiny front gardens.

Important!
If you let an unsolicited pest roam, you can completely lose the entire crop.

So everyone, even the most inexperienced, novice plant growers, is forced to protect their plantings from this pest.

Insect life cycle

Onion fly is widespread wherever the onion grows, and it is very difficult to avoid its “visits”.Outwardly, this is a gray insect the size of a fingernail; it differs from the usual housefly by a yellow-greenish tint of the abdomen. Insects are the main pests of onion crops, which is why they even got the nickname "onion killers."

In mid-May, when dandelions, cherries and lilacs bloom, onion flies crawl out from the ground, after winter hibernation, in the beds from the ground. In the first week of its life cycle, young animals feed only on flower nectar and pollen. But already in the second week the flies reach puberty and look for onion beds in which they lay their eggs.

Typically, the masonry is done in the ground, closer to the turnips, or directly on the onion flakes. A week later, larvae appear there. They constitute the greatest danger to bulb crops.

Having been born, the onion fly larva bites into the turnip from above or from under the ground. Penetrating into the bulb, the larvae gnaw out inside the whole void. Maggots feast on juicy onion flesh for several weeks, after which they move on to the next stage of their life.

They leave the plant, burrow into the ground and turn there into pupae. And after another two weeks, the first summer generation of onion flies is born. In total, there will be two or three in a season, depending on climate and weather.

Signs of damage to onion beds by a pest

Since fly larvae pose a serious threat to onion and garlic plantings, it is very important to follow all agrotechnical methods of growing the crop. Failure to comply with the basic rules of cultivation and ignoring preventive measures to control insects increase the risk of losing the entire crop. The lesion can be determined by the following signs:

  • The feathers of the onions fade and dry;
  • Plants slow down or stop growth;
  • Onions or garlic acquire a specific unpleasant odor;
  • Turnips rot;
  • Under the upper scales of the bulbs you can see the swarming white worms.

The wide distribution of onion flies allowed plant breeders to develop effective insect control measures.

Advice!
Along with this, not only methods of getting rid of pests that have already appeared have been developed, but also a wide range of preventive measures.

To prevent the defeat of beds with onions by larvae of flies is the main task, both for beginners and experienced gardeners.

Preventive actions

It is not difficult to destroy the insect and larvae, but all highly effective insecticides leave their mark in plants. Onions have the ability to gradually accumulate toxins, which in the future can make the crop potentially hazardous to health.

Therefore, it is much better to prevent the appearance of onion flies in the beds than to get rid of it later. In order for preventive measures to bring maximum benefits, they should be carried out methodically and consistently - from the time of harvesting the previous season to the awakening of the pest from hibernation in the new season.

The first measure should be a thorough digging of the soil after harvesting the onions. Dig the beds to a depth of at least 20 cm. Flies and pupae that have settled for the winter will be raised to the surface with a shovel. With the onset of the first frosts, they will die.

Before landing, follow these guidelines:

  • Choose your landing time correctly. All bulb crops should be planted as early as possible. Do not be afraid of return frosts. Onions and garlic are cold-resistant crops.
  • Process planting material. Soak the seeds for 5 minutes in hot water with a temperature of about 55 ° C. Then air dry.
  • When planning your landing, choose a well-ventilated area. For prevention, alternate onion and carrot beds. Onions effectively repel carrot flies and onion carrots.
  • Follow crop rotation rules. You can not plant onions in the same place from year to year, since not only the larvae of the fly will accumulate in the soil in the beds, but also other pests and pathogens.

After planting, before the beginning of the summer of insects, regularly spray the beds with infusion of tansy, wormwood, needles, fir, mint - of your choice.

Attention!
The smell of these plants will scare off the onion fly that appears later and force it to look for a place to lay their eggs away from your garden.

With the onset of pest outbreaks, preventative control measures lose all meaning. The future harvest can only be saved by radical measures. There are two ways to get rid of timely detected insects:

  • Use folk methods;
  • To use drugs.

The former are most preferred at an early stage of the appearance of an onion fly. The latter will allow you to get rid of insects in case of low efficiency of the former.

Folk remedies

Watering the plants with saline:

  1. 10 liters of water;
  2. Salt is 250-300 grams.

Processing is carried out after the crop leaves the first feathers. The beds are watered with saline once every ten days. A few hours after processing, it is necessary to pour the beds with clean water.

Processing infusion of dandelions:

  • Dandelion root - 200 grams;
  • Water 10 liters.

The tool is effective until the awakening of insects. Pour the crushed dandelion roots with water and let it brew for 7 days.

Before processing the onions, strain the working solution and sprinkle abundantly from the planting spray gun. Frequency of spraying every two weeks.

Using a solution of potassium permanganate: Prepare a saturated solution of potassium permanganate in the required amount of pure water. Spill the soil on the onion beds regardless of whether there is a fly and its larvae or not. The frequency of repeating the procedure is 1 time in 10 days.

Wood Ash Treatment:

  1. 200 grams of ash;
  2. A teaspoon of tobacco dust;
  3. A teaspoon of ground black pepper.

Great for killing larvae and worms. Mix wood ash with tobacco dust and ground pepper. Sprinkle the planting. Processing is carried out in two stages: before the start of the flight of insects and during egg laying.

Processing infusion of tobacco dust:

  • Tobacco dust - 200 grams.
  • Water 10 liters.
  • A bit of liquid or laundry soap (gram 30)

Boil water and add tobacco dust. Add grated laundry soap or use liquid soap. Stir and let the solution brew for 10 days. Spray plants and soil abundantly on turnips. The procedure can be repeated in a week.

Important!
If rotted bulbs are found, use a scoop to carefully remove them from the ground and lower them into a bucket of water. The larvae collected in the dead plant die. So, they will not be able to turn into a new generation of flies.

Such simple means are able to provide the crop with reliable protection against onion flies. The main condition: all activities must be carried out on time and very carefully.

Use of industrial products

If the maximum result is required with the minimum expenditure of time and effort, insecticides are used against the onion fly. The list of approved drugs includes:

  • "Fly-eater", "Medvetoks", "Zemlin" - on the basis of diazinon. Apply to loosened soil at the same time as the bulbs. Damage to the chewing-suction apparatus of the larvae;
  • "Actara" - based on thiamethoxam. The drug is sprayed throughout the growing season. Acts on the nervous system of insects;
  • "Karate Zeon" with the active substance lambda-cygalotrin. Used for regular spraying of plants during the entire growth period. Destroys the nervous system of pests;
  • Nicotine "Tabazole" and industrial tobacco dust. Serve for dusting growing onions;
  • Sochla. This preparation consists of a water-soluble substance obtained in the process of burning wood.

Fighting Onion Fly

The fight against onion flies is a hot topic for gardeners who grow onion vegetables and flowers.Such an insect can in a short time not only completely destroy the planting and future crop, but also make the used agricultural land unsuitable for the subsequent sowing of such plants.

Description

Here is an onion fly in the photo and in the description. The color of the fly is ash gray with a greenish tint, resembles a housefly and a cabbage fly, but smaller, 5–7 mm in size.

Pupae overwinter in soil at a depth of 10–20 cm in areas where the pest developed. The fly begins to fly from mid-May, which usually coincides with the flowering of cherries and dandelion. Soon, the female lays eggs in the soil near the plants or on dry onion flakes in a few pieces.

They are white, clearly visible on the soil, with a knife they can be slightly moved away from the plant, and then the released “legless” larvae will die before they reach the bulb.

How to get rid of a pest with water

If the eggs were not raked, then the spawning larvae get to the plant, where they bite into the tissue. Climbing into the plant through the base of the leaves or from the bottom, they begin to eat juicy scales.

The bulb usually collects up to 10 larvae, they are white, legless, the head section is narrower, up to 10 mm in size.

Advice!
Damaged bulbs rot and the plant dries. Such plants must be very carefully removed using a scoop from the soil and put in a bucket of water, where the larvae will die. This is the answer to the question of how to get rid of onion flies with water.

It should not be delayed in carrying out this work, since the larvae can remain in the soil where they pupate, and second-generation flies will appear in July.

Means and methods of struggle

So that the pest does not fly on the bow of this year, such methods of controlling the onion fly are used as the spatial isolation between onion plantings should be at least 400 m, which is practically impossible to do on the garden plot.

Therefore, beds with onions protect (restrain) from colonizing the onion fly by placing onion plantings near the carrot crops, as carrot volatile stains repel the pest. This is an effective remedy for onion flies.

If you were “visited” by an onion fly, the fight against it should begin with compliance with the rules of agricultural technology. Early planting of onions and mulching of the soil with peat make plants less affected by the pest.

Sprinkling the soil around the plants with tobacco (shag) dust mixed with ash (1: 1) scares off the onion fly, and if you repeat this treatment 3-4 times every 6-7 days, the onion will be guaranteed to be free from pests. Before fighting the onion fly, remove all parts of the plants damaged by the insect from the site.

You can use other odorous products - ground pepper, ground bitter wormwood, naphthalene, technical camphor.

Autumn digging of the soil on the onion beds should be mandatory, as it leads to the death of wintering pupae.

How to deal with annoying lover of onions

When the onion has become soft, and your crop has lost its appearance. Planting material disappears and you do not understand what to do? Such signs are similar to the activity of the onion fly known to us. Measures should be taken in a timely manner so as not to lose the entire crop.

Many farmers wonder how to deal with onion flies. If you are faced with manifestations of its activities, then you need to figure out how to get rid of the onion fly. The fight against onion flies should not be delayed.

The pest outwardly resembles the usual fly of a smaller size, yellow. Onion fly is a danger to the onion crop. From the onion fly, the threat grows in that it lays its offspring. During an unresolved issue, the problem will double and even triple.

Organic means are used against onion flies, as are fertilizers. If you decide to grow seeds on your land, then feeding before planting and after it should be exclusively from organic means.Treatment and prevention of sevka is also based on organic top dressing.

The main thunderstorm for an onion fly is a pungent smell that allows it to fight. Effective protection with a solution of ammonia, which is watered onion beds. This is a great tool to help deal with it. An onion pest dies if ten large spoons of ammonia are dissolved in ten liters of water. At dusk, water is watered with plain water.

Repeat your actions every month. In total, you will do onion fly prevention once a month. This is necessary to fight the onion fly because it is returning.

Important!
If you are afraid that ammonia adversely affects sowing, then you are mistaken.

Ammonia, on the contrary, nourishes your planting with useful substances. To preserve the crop, you need to spray onions with ammonia once a month.

Common methods

No, there is not always the opportunity or desire to use alcohol, for this there are other ways to deal with the pest:

  • Saline.
  • Tobacco dust.
  • Laundry soap.
  • Ash.
  • Decoctions of herbs.
  • Ammonia.
  • The drug metronidazole.

If the onion is already gaining growth, the treatment is carried out with a salt solution. Three times during the season, the site is treated with salt. The third part of the pack is dissolved in ten liters of water when the sprouts have reached eight centimeters.

After two weeks, the onion fly is excreted with a solution of half the package for the same amount of liquid. More than half spend when three weeks pass.

Laundry soap is an inexpensive and effective pesticide. This is an effective method, but it does not always allow you to plant other crops on this site, after collecting onions. Onion flies are excreted with salt, but you run the risk of degrading the soil. Therefore, salt is better to say no.

If you dilute in ten liters of water two hundred grams of tobacco dust, then the onion fly will leave it. The water should be hot and the dust solution should be infused for a couple of days.

Effective methods of control are kerosene. Kerosene is diluted in water and also provide feeding kerosene in the infected area three times. Kerosene is a great way to deal with a pest.

Ammonia is also effective as a method to save crops. The presence of ammonia allows you to get rid of the pest larvae. Therefore, ammonia is recommended for use. There are cases when metronidazole and insecticides are used as top dressing. Insecticides are pesticide chemicals used to kill insects.

Advice!
Prevention is the best fight, so you should cultivate the soil before planting, inspect and rinse the seeds before planting, and process the seeds before transferring to the site. It is also recommended that the soil and onions be cultivated before and during watering.

If you do not have time to treat the culture, then it is necessary to prevent its infection by prevention.

This is one of the most problematic pests for all plant varieties. There are many problems in the struggle and its removal.

How to deal with onion flies in the garden and in the greenhouse

the course behind the garden beds takes up enough time and effort. Preparing the soil, planting seedlings, weeding, watering, fertilizing plants - there is always enough work at the summer cottage.

However, often in the struggle for generous harvests, one has to deal with various diseases and pests that can cause significant damage to our well-groomed bushes of carrots and onions. Among the abundance of small “gnawing” and “flying” garden pests, an onion fly is often found.

This small insect of ash-gray color 6 - 8 cm long, in appearance resembles a regular housefly. The name “onion” does not mean at all that only onions are preferred - garlic, leeks, lettuce and even tulips become the object of attack of this pest.

An onion fly appears in spring, during the flowering period of cherries, and by summer begins to lay eggs - in the soil near plants, in the axils of leaves, on the feathers of onions.

A week later, larvae develop from eggs, penetrate into bulbous tissues and begin their gradual "destructive" work. Thus, the onion fly can move from one plant to another, gradually affecting the entire garden.

And if you consider that the fly lays eggs throughout the summer, then you can only imagine the speed of spread of the insect. As a result of the defeat, plant growth slows down, tubers become soft, and the smell unpleasantly gives up rot.

Methods and Tools

As a rule, any disease is easier to prevent than then fight it. Therefore, in order to prevent onion flies, means of destroying its larvae - insecticides should be used. However, many modern drugs contain toxins that accumulate in plants and then enter the human body.

In this regard, it is better to adhere to certain rules:

  1. Warming up at a temperature of 20 - 25⁰ before planting. To do this, dissolve a tablespoon of salt in warm water (1 l) and fill the plants with the resulting solution for three hours. Then we wash the plant and soak in a solution of manganese for another two hours, after which we rinse and slightly dry.
  2. Choosing a well-ventilated area for planting crops. We plant onion plants in deep grooves, alternately with carrots. So the plants mutually help each other, because the carrot fly does not "love" onions, and onions - carrots.
  3. Annual change of crop landing site. In addition, experienced gardeners recommend digging a plot after the crop is harvested. If the soil contains onion fly larvae, they will appear on the surface and freeze.
  4. If the onion fly has already appeared on the beds, you need to deal with it with more "radical" means. How to handle onions from an onion fly? To begin with, we water the plants with plain water, then with a solution of kerosene (1 tablespoon of kerosene in a bucket of water). Pour the solution into the watering can and water it - one bucket will be enough for about 4 - 5 meters of beds. If necessary, the procedure can be repeated.

Ammonia helps a lot from onion flies. Take a container of water (10 l) and add 0.5 tsp. boric acid, 3 drops of iodine, a little solution of manganese (until pink) and 1 - 5 tbsp. technical ammonia. After dissolving all the components, pour a cup of such a solution under each plant.

We use the forces of nature

The most “unloved” odors of this pest include needles, mint, wormwood, and valerian. Ash is also used as a useful fertilizer. To do this, collect dry branches, weeds, various rubbish on the site and make a fire. Then we stir the ashes in the water and water the garden beds.

Attention!
If you add crushed tobacco leaves, manure or ground red pepper to the solution, the effect of using the product will significantly increase.

Pollination of plants will also help in the fight against onion flies. We mix tobacco and ground pepper (1 tsp each), add ash (200 gr.) And pollinate the beds with the resulting mixture. Then you need to weed.

A saline solution, whose concentration depends on the size of the sprouts, is a good solution from onion flies. So, 5-centimeter sprouts for the first time need to be treated with a solution prepared from a third pack of salt in a bucket of water.

Two weeks later, we carry out the second treatment - the amount of salt increases to half a pack. And the third time for the solution we take 2/3 packs of salt for the same volume of water, and the procedure itself is carried out 21 days after the date of the second treatment.

How to deal with the onion fly larva?. The most effective remedy for onion flies is helminth tablets, dissolved in water (5 pieces per bucket of water). For watering, they also use simple soapy water, at the rate of 50 g. Laundry soap in 10 liters of water.

How to deal with an onion fly in a greenhouse. Many gardeners encounter this pest, which causes yellowing of the feathers of onions and other plants.Of course, if the cultivation of green onions was planned for sale, then this situation causes understandable concern - after all, onion flies can kill a significant part of the onion or garlic crop in a short time.

What other measures are used to combat the onion fly? Nitrogen dressing will prevent the appearance of plant pests. But how to get rid of already appeared larvae?

First you need to carefully remove damaged plants from the soil, then lower the bulbs in a bucket of water - so the larvae will die. However, this procedure must be carried out before the formation of pupae from larvae. If you miss the right moment, then in July there will be "new" flies.

Onion fly is a serious threat to planting bulb crops. However, using simple but effective methods to combat onion flies in the garden and in the greenhouse, reliable protection can be provided. Have a good pest control!

Get rid of fast and forever

Each summer resident at least once in his life was faced with the appearance of an onion fly in the area. This small winged insect, not more than 7 mm, does not bring little harm to the onion crop. What to do if an onion fly is wound up, how to deal with it? What methods are most effective in combating this pest?

Important!
The onion fly visually practically does not differ from the home one, but is much smaller in size: an ash-gray body with a greenish tint on the back reaches a length of no more than 5-6 mm. A pest insect appears in spring, when dandelions and fruit trees begin to bloom.

If you don’t know how to grow large onions, then know that the onion fly chooses dried onion flakes as a place for laying, but if you can’t find them, you can lay eggs directly in the soil.

Larvae appear just a couple of days later - these are small white worms that affect almost the entire bulb. In 2 weeks they completely destroy the plant, pupate, and by the middle of summer, a young change of onion flies is ready for the destruction of the crop!

Note that the insect infects not only ordinary onions, but also bulbous plants - garlic and flowers with an onion root. The affected plant dies - both the young shoots and the adult parts begin to turn yellow and dry, the bulbs begin to rot, a fungus appears.

If an onion fly has been spotted in the infield, how to deal with it? How to keep bulb plants healthy? Without carrying out preventive measures, you can forget about a good harvest.

It is important to know that it is extremely undesirable to destroy this pest with the help of pesticides. The reason is simple - the bulb retains chemicals and insecticides quite well, in the future the vegetable will simply not be suitable for food.

What smells can scare away a pest

Not even all summer residents know what to do if an onion fly appears, how to deal with it. It turns out, like many parasite insects, the pest does not like unpleasant odors. In this case, the smell of carrots and tomatoes is repulsive. Many housewives plant onions, alternating it with carrots, and a bed of tomatoes is broken nearby.

Advice!
The effect of such plantings, as they say, on the face - there is no onion fly, no carrot, so joint planting in this case will only benefit. Reviews of experienced gardeners about the joint cultivation of vegetables, in most cases, are positive.

Effective will be spraying onions with strongly smelling decoctions of mint, valerian or pine needles. For plants, these decoctions are absolutely safe. Another popular method of struggle is tobacco dust. This tool is sold in retail outlets for gardeners. It can be scattered between rows of onions or sprayed with a solution of the plants (the proportions are indicated on the package).

Folk remedies

According to agronomists, the most effective method of destroying onion flies is ammonia, which must be diluted in the proportion of 3 tbsp. l 10 l of water and water the soil under the plantings. Repeat the procedure three times, at intervals of 7-8 days.Nitrogen, which is part of the alcohol, acts in this case also as fertilizer for onions.

Ash as a fertilizer is a very effective folk remedy in the fight against the onion fly and its larvae - it is enough to sprinkle ashes between rows. By the way, even our grandmothers used ash, they successfully brewed it. Take a part of the ash and fill it with three parts of boiling water, let it brew for a day under the cover, and then water the plantings - you yourself will be surprised where the parasites will go!

Among folk remedies, tincture from dandelion rhizomes is quite popular among summer residents. 200 g of roots should be put in a container and pour boiling water. Let it brew for a week. Sprinkle with a solution of beds once every 2 weeks.

Someone prefers to use regular table salt. The remedy is effective, but there is one significant drawback - the soil accumulates salt and becomes unfavorable for other plantings, therefore it is used once a year: dilute 250 grams in 10 liters of water and pour onions under the root. After 3-4 hours, spill well with clean water.

You were not mistaken, once a year will be enough. If you follow the advice on the Internet where they write that you need to put a kilogram of salt in several stages per month into the soil, then you will simply destroy your land and after a couple of years of such skill, nothing will grow on your bed at all. In everything you need to know the measure!

Some farmers mix naphthalene with sand or ash in a ratio of 1:10 and sprinkle plantings. One or two procedures are performed during the summer of the onion fly and the deposition of Yamts.

Attention!
Another popular method is laundry soap. Dissolve a bar of soap in 10 l of water and spray the plants with the resulting solution. In addition, potassium permanganate again in a hurry to help!

Make a saturated pink solution and water late in the evening so as not to burn the plants. Repeat the procedure as necessary, every 8-9 days. On the forum, according to reviews, many summer residents just save the bow from the fly.

Preventive measures and insecticides

By preventing the emergence and spread of parasitic insects, including onion flies, we mean the creation of an environment for them in which they cannot live and reproduce. First of all, it is necessary to do inspection of planting material. All bulbs should be intact, without any damage, even the slightest trace of rot should be the reason for rejecting the seedling.

Selected healthy bulbs must be processed before planting in the ground. There are two ways to do this:

  • Hot water - the onion is lowered into hot water (approximately 50 ° C) for 15 minutes, then it is well dried and planted;
  • Potassium permanganate - the solution is prepared in a proportion of 1 g / l of water. Onions are kept in the solution for 30 minutes, after drying they are ready to plant.

It is worth noting that processing onions before planting is an important and necessary step in growing vegetables if you want to grow a rich harvest. Unfortunately, many gardeners do not want to bother with sowing, and simply planted in the ground, dooming their planting to a guaranteed low yield.

Deep digging of soil at the planting site in the fall will also help get rid of onion fly larvae. In winter, the pest survives at a depth of no more than 20 cm, which means that when digging, all the larvae will move to the surface, where they will die during the first frosts.

Another important rule - be sure to remove the remains of the crop from the beds, so there will not be a favorable breeding ground for the onion fly.

An onion fly started up in my garden, how to deal with it? - Often heard sellers of gardening stores. In this case, you will definitely be recommended a drug such as Bazudin. 30 g of this product must be mixed with 0.5 l of sand (can be replaced with sawdust) and poured into the ground. This must be done at the end of spring.

In addition, you can buy other drugs against onion flies - Flies, Diazinon, Dachnik, Medvetoks, Muravyin, Teradoks and others.Do not forget, if you grow onions on herbs, some drugs can not be used for processing.

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