Caterpillars on currants: why did they appear and how to get rid of them?

Caterpillars on currants: why did they appear and how to get rid of them?

Every inhabitant of our regions knows such a berry - currant. Probably, currant bushes grow in every garden. Therefore, many gardeners often face the problem of various diseases of this culture. One such disease is parasitic caterpillars. In this article, we will analyze this particular problem, how and why caterpillars appear, and what methods of dealing with them currently exist.

Types of insects

Currant is the "favorite" culture of many parasitic insects and their larvae. They are very fond of eating leaves and stems, which causes severe damage to the plant as a whole and negatively affects the yield. Caterpillars appear on currants from laid eggs. This is a transitional form of insect development and for further growth they need active nutrition, namely: green mass.

A sure sign that insects are attacking your currants is the appearance of more butterflies around the bush. And although these are cute and sometimes beautiful creatures, they “look after” your currants for laying eggs. It is important to notice this moment in time, since it is easier to deal with them before the number of individuals increases. Remember, they multiply very quickly and the fight against them can drag on for a long period.

To begin with, let's look at the classification of insects that mainly damage currant bushes.

  • Kidney moth. It is a small parasite with a wingspan of 15 mm.The color is yellow-brown or gray at the beginning of the life cycle, which subsequently changes to red and green. It reproduces by laying eggs. Usually eggs can be found in young buds and ovaries, which the larvae eat from the inside. As you understand, the consequence of this is the rotting and drying out of the rudiments of the plant in the spring and the lack of a good harvest. The kidney moth pupates in the ground under the shrub and appears during the flowering period of the currant. Work on this problem with regular spraying.
  • Leaflet. This is a type of butterfly that lays eggs on leaves. The color is light brown with stripes on the wings. Hatching, brown or green caterpillars actively feed on young shoots and stems. At the next stage, they envelop the leaf with cobwebs and develop inside, feeding on the juices of the plant.

Therefore, it is most effective to deal with such parasites manually, cutting off the pupae, thus interrupting the growth cycle of the parasite.

  • Glass case. It is this insect that settles inside the currant shoot and feeds on its core. The appearance is similar to a wasp, with the same yellow stripes and small wings. Masonry is formed directly in the bark or in the buds of the plant. Caterpillars hatch from them and eat the insides of the shoots, and then move to the roots. As a result, the plants die rather quickly. The biggest problem with these parasites is that they are difficult to hatch, as most chemicals don't work on glassware.
  • Moth. This is a large butterfly that parasitizes most horticultural crops, including trees. The color is yellow. You can notice eggs in the first half of spring on the inside of the leaf. Mainly red and white varieties of currants are attacked, and the leaf is completely eaten away.And in autumn you will find them in cocoons of cobwebs among fallen leaves. It is best to treat with an antiparasitic solution several times a year.
  • Gooseberry fire. This gray butterfly attacks currant flowers and gooseberries with raspberries. Caterpillars feed on fruits, wrapping them in cobwebs. Surely you noticed the dried berries on the bush, this is the result of the “work” of the moth.

Wintering of the insect is carried out in the soil near the bush. Therefore, actively spud currants in the fall and use gentle insecticides.

  • gall midges - another type of insect - mosquito. The color is white at the beginning, which gradually turns into a bright red color. These parasites feed on the tissues on the stem, and as a result, you may notice swellings under the bark outwardly. It is important to note that the gall midges attack blackcurrant most of all. They also wait out the winter in the upper layers of the earth.
  • Beetle sawfly. A small black beetle that, being a caterpillar, eats red currant leaves to thick veins. If there are a lot of such bugs, then you risk being left with a completely bare bush. Insects develop very quickly, so during the summer there can be up to three broods during the spring-summer period. For the fight, various drugs are used several times during the flowering period of the crop.

As you understand, there are a lot of varieties of caterpillars that parasitize currants, and they all have their own characteristics. The biggest problem is that all these insects quickly develop immunity to all kinds of chemicals, so gardeners are constantly forced to invent new ways to fight. It is about them that we will talk further.

Signs of defeat

So, knowing the parasites "by sight", it's time to consider in detail the stages of currant damage by these insects.This is necessary in order to understand when the plant can be saved, and when it has already died. And it is also necessary to understand where the problem begins, and how to see it in advance in order to quickly and painlessly remove it.

Most caterpillars eat shrubs starting from young shoots. This happens in the spring, as the life cycle of the insect begins during this period. Depending on the type of larvae or caterpillars, they are based in leaves, stems or inflorescences. Thus, they are completely fed by the nutrients of the currant and the greens themselves.

When the disease affects bushes, in 80% of cases the leaves are eaten first. The problem is that young leaves are consumed, which are extremely important for the further development of the culture. If you notice this problem in the early stages, then you can deal with it quite simply with the help of regular spraying of the bush. Sometimes, as you read earlier, moths can wrap webs around the plant to effectively store the substances they need. In such cases, it is useful to weed the leaves, removing areas with cobwebs. Well, also cut off the leaves that have already been eaten.

But it is worth noting that if the bushes are severely affected, do not stop actively fighting the problem, but do not expect a harvest in the same year.

Another option is the eating of berries by insects. In this case, caterpillars usually appear in inflorescences. There they feed on flowers and the beginnings of berries. As you understand, all this has a very negative effect on the future development of currants. The sooner you notice this question, the more likely it is to stop everything in the bud. It is more difficult to see a caterpillar on still unformed berries than on leaves.But with a careful and regular approach, you will notice a quick drying of the inflorescence - a sure sign that the larvae of butterflies and beetles attacked the plant. This is the time to start active actions, which we will talk about next. But in general, the struggle is also divided into manual cleaning and the use of specialized preparations.

And the last, if the culture stem is affected. That is the question of when the caterpillars ate the inside of the stem. Many caterpillars, having dealt with the support of the bush, go to the root system. This is also dangerous, since it is the currant skeleton that is infected, and without careful study, most likely, the culture will die. Visually, this is manifested by the decay of the stem and the appearance of swelling on it. It is important to keep track of all these points in order to prevent an already fatal situation.

Drawing the conclusion, we can say that if the caterpillars appeared on the currant, then they usually feed on almost all parts of the bush. All this leads to the drying of your crop and the absence of berries, but without proper care, you simply cannot get rid of them.

Fighting methods

Now, finally, let's talk about ways to deal with the problem of this article - caterpillars on currants. An experienced gardener, having many years of experience behind him, uses both folk remedies and modern chemical ones. We will try to analyze each method, and you just have to choose the best one that suits you.

Folk remedies

If you noticed the appearance of pests in time, when there are still not very many of them, then it is useful to deal with them using folk methods. We present the most popular of them.

  • Using garlic, chamomile, wormwood and yarrow, planting them around a currant plant. These plants with their pungent smell can repel insects.
  • Be sure to loosen the soil by adding tobacco powder to it. This treatment is done because many butterflies lay their larvae in the ground.
  • It helps if you spray the bush with a decoction of celandine or tansy, about a couple of times a week.
  • A common way is to spray with garlic tincture. Recipe: several cloves of garlic are poured with a liter of water, and this solution is infused for about a week. Before use, do not forget to dilute the strong tincture in the ratio of 10 ml to 1 liter of water. Otherwise, you will not help, but harm your landing.
  • Another effective tincture is on spruce needles. It is prepared in the same way as the first, not based on a tablespoon of material. After 5 days, you can water the currants, and you can process this solution several times a month.
  • Caterpillars can also be poisoned with simple laundry soap. Take 50 g of soap and dissolve in a liter of water. That's it, your solution is ready to use.
  • You can use hot capsicum (100 g) by boiling it in 1 liter of water. After several days of infusion, dilute the concentrate with 10 liters of water with the addition of a soapy solution.
  • A similar recipe for mustard. Approximately 50 grams of powder is used and diluted with 3 liters of water.

Such tinctures can poison parasites by watering or spraying. They must be used regularly, 1-2 times a week, constantly monitoring the result. If the method works, then you should see an improvement soon. If it is not there, then it is worth considering either other folk methods, or go to chemical preparations.

Note that these methods are also suitable for other vegetable crops.

store preparations

Insecticides can be used to quickly kill insects.Their main plus is a strong and quick effect with the ability to get rid of pests for a long time. It is because of this quality that many summer residents choose different store preparations. Among the shortcomings, harm to humans can be noted, therefore, using such methods, it is necessary to properly process currants in terms of time and quantitative parameters. Read the instructions carefully.

There are many types of chemicals on the market today. Many of them have a general spectrum, and some are aimed at a specific type of pest. There are more or less sparing preparations. In addition, they differ in how they are used:

  1. spraying;
  2. watering;
  3. soil powder;
  4. repellent odor pills and many others.

To choose the best option, the surest way is to consult a specialist. It is impossible to note the best drugs that can poison parasites, since each is imprisoned for a specific case.

Prevention

      The best prevention should begin immediately after harvest.

      • Dig up the soil before the winter period, adding ash, tobacco and other substances from folk recipes for pest control. All this is done in order to disrupt the life cycle of the larvae. With this procedure, you will reduce the risk of a pest in early spring. After that, the best solution is to mulch a layer of 10 cm so that the caterpillar is harder to get out.
      • Carefully inspect the shrubs, cutting off damaged areas to stop the development of the disease. It is recommended to burn all trimmings to get rid of the problem. Well, if you only decide to buy currants, then check the quarantine card with the seller.
      • The main thing is to carefully check the plants, do not abandon prevention, at the first sign, begin to act actively, using the method you like. All in your hands!

      For information on how to get rid of caterpillars on currants, see the following video.

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      The information is provided for reference purposes. Do not self-medicate. For health issues, always consult a specialist.

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