Grunning grapes: what to do and how to avoid, causes and prevention

Many are engaged in growing grapes in their summer cottages or household plots. With proper care and if the variety is selected in accordance with climatic conditions, the plant gives a bountiful harvest. However, it happens that after flowering, the fruit ovaries develop poorly and remain tiny in size. What to do about the problem of grapes burning, and for what reasons it happens.

What is grape peas

Greening is the ripening of berries on one grape bunch, different in size. Taste qualities most often remain unchanged, but, unlike the normal size of grapes, small fruits look inferior.Against the background of the usual size of berries, small ones resemble peas. This is where the name of the problem comes from.

There are two options for blotting. When the bunch is filled with large berries, and small ones are visible between them. Or, on the contrary, only a couple of three grapes of a normal size ripen on a brush. Due to their appearance, the berries are hard to market and lack seeds.

Common Causes

Why does the grapes turn over? Gardeners unanimously say that this process is influenced by more than one factor. Experienced growers identify the following main reasons:

1. Pollination deficiency.
2. Great load on the vine.
3. Lack of moisture and nutrition.
4. Features of the variety and unsuitable climatic conditions.

Lack of pollination

The most common reason for the formation of small fruits of grapes. Bisexual varieties, in which long and straight pistils and stamens are present, are self-pollinating. The female flowers, which have short and curled parts for reproduction, require insect pollinators.

Crop is subjected to peas due to the following factors:

1. Bees are not attracted to bushes.
2. High temperatures and drought dry up the pollen, which is easily blown away by the wind.
3. Plenty of female flowers that require pollinators.
4. The shrub was planted in a place where various objects (fence, wall, trees) interfere with the wind pollination process.
5. Pollen is washed away in the rain.

If a plant is not pollinated enough, most of its inflorescences fall off. For this reason, in almost all cases, grapes are blotted.

Unformed vine and vegetation overload

In the case when the plant has formed a large number of shoots, a lot of foliage and fruit ovaries are formed. This amount of vegetation overloads the vine, resulting in pea crops.

For young bushes, this phenomenon is considered normal, as the grapes, as they grow, accumulate fruiting power.

As for an adult shrub, the exchange of water and nutrients inside the plant is disturbed. Therefore, flowers and ovaries do not receive proper nutrition.

Lack of irrigation and fertilizer

Among the factors that cause the grapes to grow, there is a lack of water and mineral fertilizers. This leads to a violation of the development of shrubs and the formation of the crop.In addition, top dressing is not recommended during the cold season, as grapes, due to low temperatures, do not take fertilizer well.

The plant feels comfortable and develops well in moist soil. To prevent the soil from drying out, you must:

1. Systematically water the shrubs.
2. Monitor the condition of the soil.
3. To loosen the earth around the crop.

If the summer is hot and dry, shrubs require abundant watering - 8-10 times per summer will be enough.

Variety feature

Vine experts recommend that before you start breeding any variety of this crop, study the variety. In the description, often, indicate the tendency of the variety to such a nuisance as peas. Of course, careful care of the shrub will increase the yield, but you should not count on it too much.

In recent years, breeders have bred many unpretentious hybrid varieties. For example, Arcadia and Augustine produce a defective crop only if the plant is not taken care of.

Don't forget that the crop will produce well when planted in well ventilated areas with plenty of sunlight.

Inappropriate weather conditions

A serious reason for the lack of a rich and he althy harvest can be weather conditions. The plant will not be able to fully carry out the process of pollination. Favorable conditions are low humidity, dry and hot weather, up to a maximum of 30 degrees Celsius.

When it rains during the flowering period, pollen will be washed away, resulting in tiny berries. Opposite climatic conditions (high air temperature and lack of precipitation) will also harm the grapes.In this case, the pollen on the inflorescences dries up and cannot attach to another flower for pollination.

Signs of a bunched bunch

Obvious signs of pea berries are:

1. Excessive shedding of flowers and ovaries.
2. No insect pollinators (if required).
3. Half of the berries in the bunch, at some point, stops developing and becomes larger.

If you carefully monitor the condition of the bushes, and already at the first stage to predict the problem, there is an opportunity to fix everything. It is only necessary to take appropriate measures.

Methods of struggle

In order not to get a crop of small berries, you need to know how to avoid this trouble. In case of unsuccessful fruiting, the formation of fruits the size of "peas", it is necessary to prepare shrubs for the next fertile year, that is, to carry out a kind of treatment.

Improve the quality of pollination

The ability of the plant to fully produce pollination of inflorescences depends on the right place for planting grapes. There are several ways to attract pollinating insects, as well as improve the quality of insemination:

1. Plant plants in your garden that attract bees.
2. Purchase varieties of grapes of different genders.
3. Make sure that there is good air circulation near the bushes.
4. Make a special device for pollination. To do this, rabbit hair is attached to a wooden block. With the help of animal fluff, pollen is safely transferred to female inflorescences.
5. Spray sweet bee bait on the bushes.
6. Perform manual pollination.

Choosing the right variety

Experienced growers have identified several varieties that are more prone to peas. These include: Talisman, Laura and Kesha. Among the bisexual varieties, the following are susceptible to the problem of small berries: Timur, Summer Muscat, Kodryanka, Strashinsky and Muscat Rusbol.

But do not forget that if you take all the necessary measures in time, trouble can be avoided.

Proper care

To ensure proper care of the shrubs, it is necessary to monitor the soil moisture, if necessary, the amount of watering needs to be increased, especially in the heat. For better penetration of moisture and fertilizers, the soil around the shrub needs to be loosened, this will also help in the fight against pea.

Carry out periodic feeding with potassium, phosphorus, magnesium, boron, nitrogen and zinc.At the same time, it is recommended to select high-quality products containing these elements. In addition to pea, the plant signals a lack of essential trace elements with spots on the leaves and branches, this should also be paid attention to.

Pruning and shaping the vine to improve berry quality

Combating an overabundance of vegetation on the vine, which leads to defective ripened fruits, is necessary as follows:

1. With sufficient pollination, prune excess ovaries on shrubs.
2. Make sure that there are no dry, weakened or damaged branches. These branches need to be removed. In addition, crown thickening should not be allowed.
3. Get rid of all grapes showing signs of peas at the initial stage.
4. Pinch young shoots a few days before the start of the flowering period.

Grunning grapes is a common problem, but timely measures taken and careful care of the vineyard can avoid problems with the harvest.

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