How to get rid of aphids on red currants?
Since ancient times, many gardeners have fallen in love with red currants, but like any other plant, it is susceptible to attack by various insects and pests. To date, a lot of various measures have been developed to combat diseases that affect plants, as well as various pests.
Aphids are insects that are very difficult to remove from plants once they have settled on them. However, if the gardener is going to tackle this problem, he will have to study a lot of information on this topic in order to achieve the best result.
general information
Redcurrant is considered a common berry crop, which is grown almost everywhere in our country. The shrubs of this plant are unpretentious, but with all this they give a good harvest without any hassle.
To understand what should be fought, it is necessary to consider the description of aphids, as well as the life cycles of these insects.
Sometimes on currant leaves you can see very small insects (their length is usually only 2-3 mm) of light green or yellowish color with miniature wings. Such insects have a sucking mouth apparatus, thanks to which they, as it were, suck out all the useful substances from plants. Moreover, they settle not only on currants, but on almost any berry crop and flowers.
Even despite the harsh Russian winters, aphid eggs are able to overwinter and hatch in the spring, females are able to breed even without fertilization. Sometimes you can see flying aphids. This happens when there is little food for insects and they have to migrate to neighboring plants. By autumn, males are born, which fertilize females by winter, and they, in turn, lay new eggs. If you do not get rid of these parasitic insects, then with the advent of a new spring, everything will start anew.
Danger
Before choosing the right pest control method, you need to find out how and how dangerous it is for berry and other horticultural crops.
Thanks to a special proboscis, insects pierce the leaves of plants and drink their juice., which thereby begin to slowly fade and even rot. If a large aphid colony parasitizes on currants, then the berry can die in a matter of days. Sometimes, when an aphid begins to "eat" a young currant from the middle, you can see how much it lags behind in growth and eventually dies.
While aphids drink plant juices, they can carry bacterial and viral infections that are dangerous for plants, which can also accelerate their death. When aphids infect currants, strong swellings can be seen on its leaves and twigs. As a rule, they are caused by gall aphids.
Basically, aphids attack currant bushes in May and June, but this does not mean at all that insects will disappear in July or August if they are not eradicated. They are quite tenacious and adapt to a variety of living conditions.
To date, several species of aphids can be found in the garden, which easily infect red currants. Also, where there are aphids, there are ants. And this happens almost always, since the ants are also very fond of plant sap, and thanks to the small aphids, they do not have to extract it on their own, they simply run to everything ready.
The gall, or red-gall aphid is often popularly called the leaf aphid, since it affects the leaves of the red currant to a greater extent. Large blisters or bubbles begin to form on them. The problem is that very often such bubbles do not appear immediately, which makes it difficult to identify the pest.
If large reddish bubbles were seen on currant leaves, insects should be looked for under them, as they hide there. If the pathogen is not detected in time, then the red currant will simply disappear, as the sharp death of the leaves will begin. Of course, the harvest is also not worth waiting for.
As a rule, the gooseberry aphid, or, as it is also called, the shoot aphid, does not attack the red currant, but if the bushes of black and red currants are located nearby, then it is quite possible that the insects will migrate.
Fighting methods
If an aphid was noticed, then a serious fight should immediately begin with it. For preventive purposes, currants should be sprayed before flowering or after the first ovaries have appeared. A scheduled treatment can also be carried out before the autumn cold to destroy possible aphid eggs.
Spraying can be carried out:
- ready-made products sold in specialized stores;
- folk remedies.
Spraying should start from the bottom up, paying special attention to the lower leaves and branches. Processing is best done in the morning or in the evening. Be sure to check the weather forecast. If rain is planned, then it is best to postpone the processing, otherwise all the work will be in vain.
When processing currant leaves, it is very important to spray them on both sides, be sure to turn them over.In addition, you need to work in a special protective suit and gloves, do not forget about a protective mask. For spraying, it is best to use a small hand sprayer.
Today, many ready-made insect control products are universal, which means that no matter what kind of aphid you fight, the product will work on it. The main thing is to dilute it according to the instructions and use it correctly.
With the help of hand tools
Folk remedies are very effective and at the same time safe methods of controlling insects. Next, consider the main ones that are very popular with professional gardeners and gardeners.
Ammonia or ammonia solution is ideal when the first berries have already ripened on the currant. Moreover, if the leaves have not yet become covered with bubbles and they are processed in time, they can be used for brewing tea and canning vegetables.
To create a ammonia solution, you should:
- Make a light soapy solution. It is best to use safe laundry soap, although regular detergent may also work. For the recipe, you need 40-50 grams - this is 2-3 tablespoons of the product. Or a couple of tablespoons of grated soap.
- Approximately 10 liters of water at room temperature.
- 10% ammonia in the same amount as the detergent (2-3 tablespoons).
Everything needs to be mixed and poured into a sprayer. Next, spray the currants.
Often, aphids are destroyed by soda, which is familiar to all of us, which not only has a detrimental effect on insects, but also has a good antibacterial effect.
To prepare such a solution, use ten tablespoons of soda and one bucket of water.For greater efficiency and to enhance the effect, as well as to better hold the product on the leaves, you can rub ordinary laundry soap into the solution a little - up to 50 grams per 10 liters.
Many gardeners and gardeners are sure that soda with the addition of iodine is a more effective and proven way to fight aphids. To combat aphids, herbal infusions and decoctions, which have been used by many gardeners for the first year, are especially helpful.
An important point is that redcurrant bushes should be treated with herbal infusions before they bloom. Basically, such control methods are considered rather preventive, so that aphids do not start on bushes. If, on the currant, one colony of insects is already parasitizing, then it is unlikely that it will be possible to remove it with an ordinary decoction of herbs.
For preventive measures, you can use the following herbs and plants at the rate of 400-500 g per 10 liters of water:
- tomato or potato tops (infused for about 3-6 hours);
- onions or garlic (onions up to five hours, and garlic up to five days);
- dry chamomile (infused up to twelve hours);
- dandelion leaves and roots (about 3-4 hours);
- pine (as a rule, 1 kg is infused for about a week).
Whichever solution is chosen for use, it is best to add grated laundry soap to it.
It is popularly believed that the elderberry repels many insects, so its presence in the garden can protect many berries from pests and insects. It is also worth remembering that if ladybugs and birds are found in the garden, then this is a big plus. Sparrows, although not too fond of aphids, do not refuse it either. Birdhouses equipped next to the bushes will help rid them of pests.But even here there is a minus - birds often like to feast on ripe berries.
Chemical aphids are the most effective way to kill insects almost instantly. However, it is worth remembering that chemical solutions and powders for cooking can be toxic, so when processing red currants, you should be as careful as possible with them, you only need to work in a protective suit.
The most popular aphid poisons that can be purchased at gardening stores are:
- "Aktellik". It affects not only aphids and other insects, but also mites that parasitize plants.
- "Aktara". A modern insecticide that is suitable for protecting not only currant crops, but also flowers.
- Tablets "Spark" with double effect for insect control kill more than 60 kinds of pests.
Every year more and more new and improved varieties of insecticides are released. Where possible, gentle and non-toxic options should be chosen.
An important point in the use of chemicals is that they cannot be used regularly, especially in one season. This can adversely affect the currant bushes themselves, which will accumulate harmful substances in themselves. It is best to carry out preventive treatment after insect baiting with homemade herbal infusions.
Biological agents, which are considered safer than chemical ones, can also be used against aphids. In addition, after using the funds, the berries can be consumed after a few days.
The most popular biological remedies for aphids are:
- "Aktofit" (fights aphids, mites and thrips);
- "Biotlin";
- Iskra BIO;
- complex "Fitoverm".
Many remedies help fight not only aphids, but also whiteflies, which also infect bushes.
Expert advice
If swollen reddish leaves were noticed, which were very affected by aphids, they should be cut off and then burned, especially if spring is in the yard. For some types of currants, leaf picking is considered very beneficial, as shoot growth will improve. Of course, any pruning should be carried out strictly according to all the rules.
Boiling water is often used as a preventive measure to combat aphids. They are poured over the leaves in early spring. But with this technique, you should be careful, because very hot water in large quantities can harm the plants.
If an aphid has started on the red currant, then it should be understood that it will have to be fought for a long time, sometimes this process will be difficult, but you should not give up. A properly selected complex will help save plants from annoying insects for a long time.
For information on how to deal with aphids on red currants, see the following video.