How to treat radishes from cruciferous flea?
Gardeners appreciate radishes for tasty and healthy root crops that they look forward to. However, in some cases, the crop can be significantly and in a short time spoiled by pests called cruciferous flea. These little bugs bring a lot of trouble. How to save seedlings and get rid of insects, we'll talk in this article.
What is this pest?
The cruciferous flea damages mainly plants of the cruciferous family, which is why it got its name. The flea has hind legs, on which it jumps like a flea, but it is not a blood-sucking insect. The bug prefers to settle on such weeds as wild radish, shepherd's purse, from garden crops it especially loves turnips and cabbage. However, radish remains a favorite delicacy in the early stages of the pest.
The insect has very small dimensions, the length of its oval oblong body is up to 3 millimeters. At the same time, the flea can fly. There are several varieties of the pest, among them are black, blue, light-footed and others. The differences are determined for the most part by the color of the elytra.
Beetles live in the European part of Russia, excluding the regions of the Far North. The harm from the insect is expressed in the fact that it damages the leaves, in which it gnaws out peculiar pits. The flea is especially dangerous for young greenery, as it can gnaw through tender leaves. Thin roots of crops serve as a delicacy for larvae. Pests are most active during the day, except for the period from 13 to 16 hours, when the sun is especially scorching.
In winter, the adult flea hides in the remains of plants, crevices of greenhouses, and soil. When spring comes and the ground thaws, the insects come out and begin to actively seek food for themselves, after which eggs are laid. The cruciferous flea larvae live in the soil for about 3 weeks, after this time they pupate, and new young individuals come to the surface. An insect can produce up to 3 generations over the entire summer period.
Prevention measures
It is easier to prevent any problem than to deal with its consequences later. Therefore, experts and experienced gardeners recommend several prevention methods that will help protect radishes. Consider. what needs to be done to protect the plantings from the pest at the initial stage.
The proximity of coriander, dill and garlic repels the pest, as the insect really does not like the smell of these plants. In the case when radishes are planted towards the end of the season, it is recommended to place the beds next to calendula or marigolds, which the flea also does not tolerate.
When watering seedlings, it would be useful to add products that have a pungent odor to the water, for example, valerian tincture or Corvalol. It is enough to use 15 drops on a bucket of water, and spray or water the beds with this liquid, the smell will scare away the parasite. For the same reason, fresh wormwood laid out in the garden is an effective remedy.
Regular removal of weeds will help reduce the number of insects. In addition, radishes need to be provided with nutrients, as parasites prefer weak and small seedlings.It is also recommended to sow the crop as early as possible, when the flea has not yet come out of hibernation, which will give the radish time to get stronger. Subject to the above preventive measures, there is a chance to prevent the spread of the pest in the garden.
Fighting methods
In order to get rid of the cruciferous flea, you need to make sure that the crop is harmed by an insect of this particular species. This is not so difficult to do, because despite the small size of the pest, it can be easily detected visually. The bugs jump on the leaves, which have gnawed holes.
The main danger of a flea is that in the absence of a fight against it, the gardener can completely lose seedlings. Since radishes often appear earlier than other sprouts, it is on it that the main blow of the bugs that become active after hibernation falls. In addition, a large number of these insects can harm adult plants, as well as even hardened radish seedlings, so protection measures should be started as early as possible.
You should start with prevention and scaring, chemicals are used as a last resort.
Folk remedies
Not all gardeners accept the use of chemicals. In some cases, folk methods are quite effective, however, when applying them, it must be taken into account that in this case it is not enough to process the crops once or twice, systematic care will be required, which, accordingly, involves a large investment of time. There are several of the most common folk methods, the excellent effect of which is confirmed by a huge number of examples:
- humid environment;
- dry pollination;
- cover with non-woven material;
- setting traps;
- spraying infusions.
Let's take a closer look at these methods.
Wet environment
The red-colored flea thrives in hot and dry weather, but it does not like humidity. Therefore, when planting, it is recommended to choose the most humid part of the garden. Abundant watering will also scare away the pest. At the same time, do not forget that he is afraid of strong odors, so it would be useful to add strong-smelling products to the water.
dry pollination
Plantings can be pollinated by various means, as the bug chooses the cleanest leaves for food. This method is very popular among gardeners, as it does not require large financial costs and is very effective. Mixtures can be different, the most commonly used is ash in combination with tobacco or road dust, as well as fluffy lime.
The components should be taken in equal proportions and mixed thoroughly. The procedure itself is recommended to be carried out early in the morning so that the composition lies on the dew, and you also need to water the radish first. In humid conditions, the particles of the mixture adhere well to wet leaves. For the most effective and uniform result, the composition is placed in a gauze bag, after which it is gently shaken over the sprouts. This method is also called powdering.
The disadvantage of this method is that it does not work with a single use. Good protection can only be ensured when dusting is carried out systematically.
The ideal option would be when the gardener can carry it out after each watering or rain. And also, to achieve the maximum effect, crops should be processed not only from above, but also from below.
Shelter with non-woven material
If the crops are covered with a cloth, they will be protected not only from insects, but also from weeds and cold weather. The material must be chosen wisely, it must pass light, water and air, but at the same time be an insurmountable obstacle to pests. Well suited, for example, lutrasil or spanbond.
In addition, many recommend dusting radishes before shelter, which will serve as additional protection. When under such a canvas, the radish will grow, get stronger, the leaves will coarsen a little, so when the shelter is removed, it will no longer be an easily accessible and especially attractive delicacy for a flea.
Traps
The use of a sticky flag is often used to help get rid of the pest. The procedure is quite simple and does not require special skills.
To make a flag, a piece of fabric is attached to a stick and treated with some kind of adhesive. Solidol is excellent for this purpose. After that, you need to go along the beds with radishes, slightly touching the flag with its leaves. This will disturb the insects, which will try to hide from danger, and, flying away or jumping, will touch the material and stick to it.
Gardeners advise to carry out this procedure in the middle of a dry and hot day, while repeating it several times, maintaining short time intervals. Such catching fleas will help to significantly reduce the number of insects in the beds.
Another trap is made using used engine oil, in which a piece of cloth is wetted. Boards are laid out along the beds with radishes, on which the impregnated fabric is laid. To get as many insects into the trap as possible, the material must be turned over a couple of times a day.
Spraying with infusions
Infusions can be made on the basis of various components. For example, ash and tobacco dust, which are used in dusting, are suitable. There are many popular recipes, each one selects the simplest and most effective in a particular case. Let's take a look at the most common ones.
A glass of ash is poured into one liter of boiling water, mixed and left for 48 hours. After that, rub laundry soap and add it to the infusion. You can also use liquid soap. Radishes are sprayed with this composition.
A glass of tobacco dust should be poured with a bucket of boiling water and left for 24 hours. After that, 100 grams of soap is added, and the infusion is filtered through gauze.
Garlic should be crushed. Stepsons of tomatoes are added to it. The ratio should be 1: 1. The mixture is poured with warm water and infused for 5-6 hours, after which it is filtered, and a little liquid soap is added to the resulting infusion.
Vinegar treatment is carried out exclusively in dry weather. The composition is prepared very quickly and simply. To do this, a glass of nine percent vinegar is added to a bucket of cool water.
Another simple and fairly quick recipe involves the use of dandelion. Half a kilogram of stems and leaves of the plant is crushed, poured with a bucket of water and left for 4 hours. After straining and adding a tablespoon of liquid soap, the infusion is ready for use.
Potato tops or stepsons of tomatoes weighing 2 kilograms are poured with a bucket of water, the solution is boiled, filtered. A little liquid soap is also added. This infusion is recommended to process radishes in the evening.
Chemicals
Preparations for protecting the garden from pests are sold in specialized departments and are presented in a large assortment.For example, such means as Karbofos, Bankol, Aktellik, Aktara and others do well with a cruciferous flea. When using these drugs, safety precautions should be observed.
It should be noted that the use of chemical means of protection in the cultivation of radishes is undesirable, since they are removed for quite a long time. Therefore, drugs should be used only in the most extreme cases.
Helpful Hints
Each of the gardeners can advise many ways to deal with a flea. Among them there are not quite traditional ones, such as sprinkling plants with tooth powder, dusting with mustard or ground pepper. Someone advises planting weeds around the perimeter of the garden to distract bugs, but this method has been subjected to numerous criticisms.
Experts agree that when a pest invades, it is worth trying several processing methods, and only after that choose the best one for a particular case. And we should not forget that caring for radishes is a systematic event, in this case, the harvest will surely please the gardener.
For tips on how to get rid of cruciferous flea, see the following video.