Radish leaves in a hole: what to do, how to process, photos, preventive measures. A detailed description of radish pests and methods of dealing with them Who eats radish leaves

Although there are not so many pests, and its ripening period is so short that they do not really have time to harm, nevertheless, sometimes the crop is spoiled. To prevent this from happening again, you need to know how to protect and how to spray radishes from pests. We'll talk about this.

How to deal with radish pests?

The main pest of radish is cruciferous flea. This tiny, dark-colored beetle jumps deftly and, despite its miniature size, can cause significant negative results for radishes. Fleas eat the leaves of the plant, leaving holes in them. And when they reach a certain size, the radish stops growing.

Naturally, the root crop does not ripen and sometimes even dies. It is necessary to pay attention to this pest already at the germination stage, since young plants are not able to resist the pest invasion for a long time. Cruciferous fleas are especially active in dry and hot weather.

So, how to process radishes from these small pests:

You can spray the radish leaves with a solution of wood ash (2 cups of fresh ash per bucket of water with the addition of 50 g of laundry soap).
You can not dilute the ash in water, but simply sprinkle it on the garden bed so that it gets on the leaves. The same can be done with tobacco dust.
For greater efficiency, young shoots can be treated with the Inta-Vir insecticide. Spraying neighboring cultivated plants will not interfere either. However, this should be done only as a last resort, since there is a risk of destruction of crops.

Advice: after processing the radish, it must be watered very carefully, best of all - by drip, so as not to wash off the applied control agents from the leaves.

Another enemy of the radish is the whitefish, or rather its larvae. It's best to fight her chemicals. For example, treat the beds with a solution mustard powder, table salt and ground pepper.

To prepare the solution, you need to take 2 tablespoons of mustard powder and salt and 1 teaspoon of red or black ground pepper. Dilute this mixture in 10 liters of water and water the radish bed.

In addition to the fight against radish pests, it is also necessary to carry out preventive work - remove weeds on time, observe the correct crop rotation, do not be late with sowing seeds, on early stages apply light covering material, water in a timely manner, loosen the plants to accelerate their growth.

Control of pests and diseases of radish in open field

Control of pests and diseases of radish in the open field

Agrospan protects radish from flea
Agrospan protects radishes from cruciferous flea

Although radishes do not have as many pests and diseases as, for example, tomatoes, they do exist and can destroy most of the crop. This article is an addition to great material about growing radishes.

It helps in the fight against diseases the observance of crop rotation on personal plot. Since radish is an early crop (harvest can be obtained in about 1 month), there is a temptation to return to the same bed with re-sowing after some time in the same season. Doing so is highly undesirable. Because it can lead to outbreaks various diseases. It is also highly undesirable to plant radishes after cabbage or other cruciferous plants. Good predecessors are onions, garlic, peas, beans, potatoes, tomatoes, cucumbers, zucchini, zucchini.

Pests

The main scourge of radishes is cruciferous fleas - small bugs, usually dark in color, jump well from place to place. They damage radish leaves (make holes in them). And if the damage to the leaf apparatus of the plant reaches a critical size, then the plant abruptly stops growing and may die. At the same time, the root crop does not ripen and does not grow to the desired size. Radish seedlings should be especially protected from fleas. Otherwise, crops can be completely destroyed (eaten). mature plant can still tolerate fleas to some extent. Fleas are especially rampant in dry, hot weather. Early crops of radishes can generally produce a crop before the mass appearance of cruciferous fleas.

The fight against the flea should be carried out by biological methods.
The first method is spraying on the leaves with a solution of wood ash. The solution is prepared as follows: about 2 cups of preferably fresh ash and 50 grams of laundry soap are added to a 10-liter bucket of water. Everything is mixed up. Some make it easier. They collect ashes on a shovel and crush them over the garden. For a while, the flea restricts its malicious activity.

The second way is the same. Only instead of ash they take tobacco dust. It should be said right away that tobacco dust still needs to be looked for in stores, and it costs, although not expensive, but still worth it. And the ash is usually its own, free.

All these methods are still not effective enough. The most effective is insecticide treatment, such as Inta-Vir. But this should be done only as a last resort, only for medium-sized radishes (ripening time 25 days) and only for young seedlings, if the threat of destruction of crops is large enough.
Another exotic (mechanical) way to deal with the cruciferous flea is to cover the radish with white agrospan right on the seedlings. If the weather is not too hot, then the shoots under it do not stretch out and there are no fleas there. After the seedlings have grown stronger, we remove the non-woven covering material and fight further with ash.

Important note. It is desirable to transfer radishes to drip irrigation. Otherwise, all efforts to combat the flea with the help of infusion on the ashes will be in vain after the first watering on top of the leaves. The infusion is washed off the leaves, and the flea gets back to work.
Another note. If they grow next to radishes cultivated plants and weeds of the cruciferous family, then all the surroundings can be treated with chemistry.

Belyanka is another radish pest. Belyanka is white butterfly with dark wing edging. But the leaves of the radish are eaten by its caterpillars.
When dealing with whitefish, it is also desirable to do without the use of chemistry. The beds must be treated with a solution of mustard, salt and ground pepper. It is prepared like this: for a 10-liter bucket of water - 2 tablespoons of mustard, 2 tablespoons of salt and 1 teaspoon of red or black pepper.

Radish diseases

Bacteriosis. Root crops become slimy, begin to emit a smell of rot. At the same time, the leaves of the radish turn yellow.
To combat this disease, plants are treated with 1% Bordeaux liquid.

Keela. Blisters and outgrowths appear on the surface of root crops, radish leaves begin to turn yellow and wither.
To combat this fungal disease, the soil around damaged plants is watered with milk of lime. Prepare it like this: in a 10-liter bucket of water, dissolve 2 cups of fluffy lime. One plant must be watered with 1 liter of solution.

Blackleg. Young radish plants can be affected by blackleg. The leaves curl and turn yellow, blackening appears at the base of the plant stem.
To combat the black leg, prepare the following solution: dissolve 1 tablespoon in a 10-liter bucket of water blue vitriol and 40-50 grams of laundry soap shavings. Then the diseased plants are sprayed.
It is also very good to spray seedlings with tincture of onion peel(approximately 20 g per liter, leave for 1 day).

When choosing varieties of radish for planting, preference should be given to resistant varieties to various diseases.
But once again we can repeat that it is better to take precautionary measures. And then the probability of diseases will decrease sharply.

Radish, like other delicious vegetable crops, often affected various pests- cruciferous flea, wireworm, etc.

It happens that tiny white worms overcome it, and then, having found out why the radish is wormy, gardeners take all measures to get rid of uninvited guests. Worms do not start up in radishes on their own: one of the main pests of cabbage, radish, turnips and other cruciferous plants, the cabbage fly, is to blame for this.

The cabbage fly looks like a house fly, but it is twice as small. During the breeding season, she lays eggs, from which larvae hatch - those who eat radishes in the ground, making many moves in root crops and making them unusable.

Eggs are laid in moist soil fertilized with manure or humus.

Worms feed on radish pulp for 3-5 weeks, after which they pupate and after 2-3 weeks turn into new cabbage flies.

If the pupae remain in the winter, the flies are born in the spring.

How to deal with the cabbage fly and its larvae

Finding out why wormy radish, we will learn how to scare away cabbage flies from planting, how to process the beds. The easiest way is to use chemical insecticides, but only light ones - heavy "chemistry" accumulates in fruits in the form of nitrates and does not have time to be removed.

Cabbage fly insecticides

If 5-10 eggs or larvae are seen on the radish, we process the plantings with any of the following means:

Karbofos. We breed 6 g of 50% "Karbofos" in a liter of water (enough for a hundred square meters) and spray the seedlings twice (the second time - in a week). The drug repels the fly, preventing it from laying eggs.
Zemlin. Contact-intestinal soil chemical that kills larvae. We mix 5 g of dry preparation with 50 g of sand (enough for processing square meter ridges) and bring into the ground before planting radishes to a depth of 1.5-2 cm. The larvae die within a day.

Other chemical insecticides such as Iskra, Rovikurt, Thunder, Hexachlorana or Initiative will also help well against the cabbage fly.

Folk remedies for cabbage flies

Folk remedies, proven by more than one generation of gardeners, help to cope with eggs and larvae of cabbage flies:

Ammonia. We dissolve 5 ml of ammonia in 10 liters of water and water the soil as soon as we find wilting plants.
Ash. Noticing flies circling over the plantings, we sprinkle the seedlings, having previously moistened them with water, dry wood ash every six days. To enhance the effect, you can mix it with the same amount of red pepper or shag.
burdock leaves. We insist for two days a mixture of 2.5 kg of chopped burdock greens and 8 liters of warm water. Filter and water the radishes.
Makhorka. We combine it with black pepper powder or slaked dry lime - 1 to 1. Sprinkle the soil around the plants with the composition.
blue vitriol. We dissolve a tablespoon of the product in a bucket of water with 1 tbsp. liquid tar soap, water the ridges and repeat watering after 3 weeks.
Naphthalene. We combine it with the same amount of sand and powder the soil 5 mm from the radish and pour 6 g under the root. We repeat the procedure every 8 days: it is performed immediately after the detection of clutches. After processing, those who eat radishes in the ground will not have time to hatch.
Valerian. We dissolve in 3 liters of warm water 40 ml of valerian and 2 tbsp. chopped laundry soap, pour out the bucket and add water to the top. After mixing the composition, we spray it with a young radish during the summer of a cabbage fly. Now you don’t have to puzzle over why radishes are wormy - there will be no worms.
table vinegar(70%). We dissolve 0.5 tbsp. vinegar essence in 10 liters of water and spray radish plantings.

In order not to worry about how to treat radishes from worms, you can do without chemical and organic methods of dealing with cabbage fly. We buy mesh transparent covering material such as lutrasil and cover the ridges with radishes during the summer of flies.

We make sure that there are no gaps left, and the fly will not be able to get inside to lay eggs. In the rain, the canvas can be removed, but on fine days we leave it in place and, if you need to water the radish, water it directly through lutrasil.

To prevent the emergence of egg clutches of the cabbage fly, so that there are no questions why the wormy radish has become, several preventive agricultural measures can be taken.

Planting radishes every year in a different place.
Fertilizing the land with compost at least three years old.
Removal of plant residues from the site, whether it be tops or weeds.
Autumn digging of the future soil for planting to a depth of 1-1.5 bayonet spades.

You can also grow other garden and vegetable plants next to radishes. flower crops, scaring away the cabbage fly and protecting radish roots from being eaten by worms.

The best neighbors of radish, preventing the appearance of cabbage fly larvae

Marigold. Tagetes emits an unpleasant pungent odor that most insects do not like. We plant several plants directly on the ridge for radishes 2-3 weeks before sowing.
Sage, mint or rosemary. We plant fragrant herbs on radish beds a few weeks before sowing the vegetable, digging them right in the pots, cutting off the bottoms. This is to prevent the spread perennials all over the ridge.
Garlic. We plant garlic cloves in a ridge for radishes three weeks before sowing seeds every 15 cm with row spacings of 55-60 cm. Radishes are sown in grooves cut in the middle of these row spacings.

Fragrant neighbors will play the role of repellents that scare away the cabbage fly and other harmful insects from radish ridges, and will contribute to obtaining good harvests.

Now it’s clear why the radish is wormy, what kind of white worms they destroy future harvest, and what insect is to blame for their appearance. If the worms have spoiled a lot of plants, be sure to remove and burn them without sending them to compost and without creating excellent conditions for the pupae of flies for wintering. It is better to take preventive measures right away than to experience grief after losing the lion's share of delicious vitamin vegetables.

The main pests of radishes are:

Fleas on radishes

Important! It is advisable to use chemical agents only when more than 4 individuals settle on one plant.

You can decide what is better to spray a radish from a flea by studying the properties of these pesticides:

Note! When processing plants, be sure to wear protective equipment: goggles, gloves and a respirator.

Pests of radishes in the greenhouse

Insect pests can harm radish plantings not only in the open field, but also in the greenhouse. Most often, in greenhouse conditions, radishes are attacked by cruciferous fleas. They gnaw on radish leaves, holes are formed in them. Sometimes beginner gardeners do not know what to do if through holes appear on the leaves of a radish with what to process. If there are black fleas on the radish, what to do to protect the plant.

You can fight fleas with pesticides, but it is better to use proven folk methods.

You can sprinkle tobacco dust, ground pepper or mustard between the beds. The same means of struggle are also used for preventive purposes.

tobacco dust

Folk remedies against pests

For example, if a cruciferous midge eats a radish, what to do in this case. Both in the open field and in the greenhouse, it can be fought with pepper, tobacco and ash.

Ash particles enter the respiratory tract, and the insects die. For prevention, plants are sprinkled with a mixture of lime and ash (1: 1) every 7 days.

If there are few pests, you can just crush the radish leaves with ashes a little.

Adding ashes

From the larvae of the garden scoop, tincture from potato tops helps well. Immediately before spraying, add 50 grams of laundry soap to the infusion. Processing is carried out in dry weather.

Thanks to such preventive measures, you can protect the radish from pests.

Attacking a plant, pests can destroy the entire crop in just a few days.

The defeat of the tops is especially dangerous - the growth of the root crop stops, and the plant dies.

How to determine what exactly hit the root crop - a disease or insects?

If a plant overcomes an illness, it changes its physiological state. Symptoms of various diseases can be:

the appearance of a white oil coating on the stems, leaves, pedicels and testes;
spherical growths on root crops, which eventually turn brown and begin to rot;
black, light yellow or brown spots on radish leaves;
root crops are covered with brown spots and overgrown with gray fluff;
the veins on the leaves or the base of the stem turn black, the leaves turn yellow and begin to fall off.

The causative agents of diseases with such manifestations are fungi and viruses.

cruciferous flea

Black bugs moving in the garden with intense jumps making them easy to spot. The pest infects radish leaves, gnawing out fragments and quickly increasing the affected area. The attacked radish stops growing and dries up.

The cruciferous flea is especially active in dry, hot weather.

How to deal with a pest, how to treat a radish from a flea, are there folk remedies against this insect?

To protect landings from flea attacks, you can resort to natural remedy. For the manufacture of protective composition required in equal proportions:

Ash.
Tobacco dust.
Mix the components and scatter the resulting composition over the garden at intervals of once every five to seven days.

In case of mass destruction and the inevitable need for the use of chemicals use drugs Tod, Alfatsin, Zolon, Kaiser, Arrivo.

The plant is processed according to the instructions. For example, Zolon, a preparation in the form of an emulsion concentrate, is used as follows:

Spraying is carried out during the growing season.
The composition is diluted in a ratio of 1.6 ml per 2 liters of water. The resulting solution is enough to process about three square meters.
Processing is carried out in the morning or in the evening in calm, dry weather.
The duration of the drug action is 15-20 days, 90% of pests die on the third day after spraying.

Belyanka

White butterfly laying its larvae in the soil. The emerging caterpillars move onto the leaves and destroy them. To disinfect plants, you need to prepare a composition of the following components:

Mustard - 2 tablespoons.
Ground black pepper - 1 teaspoon.
Table salt - 2 tablespoons.
Water - 10 liters.
Mix all the ingredients and spray the radish once a week.

Of the chemicals, Iskra M, Kemifos, Fitoferm are effective, they are used according to the instructions.

cabbage moth

A night butterfly of a gray-brown color, about two centimeters in size. Insect larvae can be found on the underside of leaves.. The hatched caterpillars feed on the leaves of the radish.

To counteract the pest, you need to feed the plantings with superphosphate with calcium chloride.

If there was a mass defeat of plants, then to destroy the pests, you will have to resort to chemical treatment Lepidocide and Bitoxibacillin, remembering that it is forbidden to carry out such treatments during fruit ripening.

Application of Lepidocide:

The drug is prepared on the day of use, according to the instructions.
To prepare the solution, only clean, warm water is used.
Spraying is carried out in dry weather up to +35 degrees.

cabbage fly

This gray-brown fly does not pose a danger to radishes, unlike its larvae. They deform the root, gnawing holes in it. Also, caterpillars are able to completely destroy fresh leaves.

The insect does not tolerate substances based on naphthalene, slaked lime and camphor. Plants can be treated with formulations that include one of the listed components.

If the lesion exceeds 15%, Lepidocid and Bitoxibacillin are used.

garden scoop

Butterfly brown color, the larvae of which eat seedlings. As a result of such a lesion, the greens can grow, and the fruit does not develop, and remains a root.

To destroy the pest, you can use the following recipe:

500 grams of dried tops.
50 grams of grated laundry soap.
10 liters of water.
Leaves to insist in water in a warm place for four hours.
Add soap before spraying.
Process landings in the evening in dry weather.

If a remedy made from natural ingredients does not work, you need to use chemicals. Well proven Zeta-cypermethrin, IntaVir.

IntaVir solution is prepared at the rate of 1 tablet per 5-10 liters of water. Processing is carried out through a sprayer.

cabbage butterfly

Butterfly white color, whose caterpillars feed on young leaves and eat away the pulp, leaving only veins.

You can overcome pests by collecting them manually and processing the landing coniferous concentrate. For this you will need:

Spruce or pine branches and cones - 200 grams.
Hot water - 2 liters.
Put the raw materials in an enameled container, fill with water, leave at room temperature for a week.
After the set time, strain the remedy.
Dilute in a ratio of one part concentrate to ten parts water.
Spray in the morning every two weeks.

If there is a need for processing chemical compounds, then Fitoverm, Bitoxibacillin and Lepidocid are well suited.

wireworm

small, brown bugs with oblong bodies. Destroy tender shoots. Adults feed on leaves, while larvae feed on root crops.. On plants attacked by a wireworm, rot and all kinds of fungal diseases. Radishes rot from the inside.

A good option for saving from a wireworm is to bury the onion peel in the garden when.

At the first symptoms of damage, fertilization based on ammonium sulfate can help.

If the plant is massively attacked, use the drug Bazudin. To destroy the wireworm, it is introduced into each well, at a dosage of 1 gram per square meter.

stem nematode

These are filamentous microscopic transparent whitish worms, up to 2 mm long. Their goal is radish juice, they can nest in the root neck of the fruit, roots or stem. Damaged radishes wither and die.

Marigolds are effective against nematodes:

The whole plant is dried in the open air.
Half a bucket of crushed marigolds is poured with ten liters of water and insisted for three days.
50 g of laundry soap is added to the resulting composition, the solution is filtered.
It is necessary to spray the plant weekly.

To combat nematodes, insecticides are used: Dimethoat, Rogor, Vidat. The use of these drugs makes sense only for young seedlings.

Plants are treated by spraying in the morning or evening hours. To achieve the best effect, choose a warm, calm day.

Rape sawfly

Insect, about 8 mm long, yellow-orange in color with two black spots on the back. The body is shiny with two pairs of transparent wings, yellow at the base and with a black border around the edges. The female rapeseed sawfly lays eggs in the second half of May - early June on the underside of the radish leaf. Hatched caterpillars eat numerous holes in the tops and lead the plant to death.

An infusion of black henbane will help in the fight against the pest. You need to take:

500 grams of dry leaves.
2 liters of water.
Insist 12 hours.
Strain the liquid through a sieve.
Dilute the resulting composition with eight liters of water, add grated soap and process the beds.

Of the chemicals, Dendrobacillin and Entobacterin are effective.

Entobacterin is dissolved in warm water, adhering to the dosage of 10 g per liter of water. Processing is carried out using a spray gun.

cruciferous bug

Small black bugs with bright orange stripes feed on radish juice and young shoots dry up. To protect plantings from pests, you can prepare the following solution:

500 grams of Datura leaves.
10 liters of water.
2-3 tablespoons of crushed laundry soap.
Mix the ingredients and leave for 12 hours.
Spray the tops every five days.

For chemical treatment, Phosbecid, Aktellik are used. The drugs are used according to the instructions.

summer cabbage fly

Wormy radish fruits - the result of the vital activity of the summer cabbage fly. Harmful insect larvae are difficult to detect - they are whitish, up to 8 mm in length. Destroy inner part stems, make moves and move towards the fruit.

A folk remedy in the fight against this insect includes:

Salt - 200 grams.
Ten liters of water.

Salt is diluted with water and the beds are watered. After the earth needs to be sprinkled with ashes.

Effective insecticides in the fight against summer cabbage fly - Karbofos, Zemlin, Rovikurt.

Prevention

To prevent the appearance of pests, you can also carry out the following procedures:

spray on beds with radishes taken in equal proportions wood ash, slaked lime and tobacco dust;
spray radishes with a decoction of green wormwood;
spray only emerging shoots with a solution of vinegar, prepared at the rate of 1 cup of 9% vinegar per ten liters of water.

At the end of the season, you need to clean up plant residues, since it is in them that some of the pests hibernate. Closer to frost, the earth in the garden needs to be dug up so that the larvae and adult insects die.

Proper crop control, pest prevention and, if necessary, timely destruction measures taken will help the gardener win the fight for a rich radish crop.

We offer you to watch a video about radish pests and methods of dealing with them:

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