When and how to prune strawberries after harvest?
It is far from a secret that strawberries are one of the most capricious crops. Her harvest can be spoiled not only by poor soil and bad weather conditions, but also by improper care of the gardener. Crop care is not limited to watering, weeding, as well as elementary feeding. In addition to all of the above, which is considered traditional in the cultivation of most plants, garden strawberries still need timely and proper pruning of the mustache and the bush itself.
Why is pruning necessary?
Experienced gardeners note that the high yield of strawberries largely depends on the autumn pruning of the bush. It is with her that the quality and quantity of the next year's harvest is associated, since the procedure carried out according to all requirements allows the plant to prepare for the winter "hibernation", saving the necessary amount of energy until spring, when it can rise with greater strength.
If you cut strawberries after harvesting, then in the new season you can get 40 percent more berries than otherwise. So how is pruning related to next year's harvest? The fact is that after the work done (we are talking about fruiting), the plant begins a period of rest. But not for strawberries.
Having rested slightly from fruiting, it forms foliage with renewed vigor. If you live in the southern regions, then there is an opportunity to get a second crop.In other regions, there can be no talk of re-cropping due to climatic conditions, so it would be better to save the energy of the plant until next year, which is done through post-harvest pruning.
The next year, without pruning, you can get lush tops instead of a high yield.
Basic Rules
So, let's consider what the autumn pruning of a strawberry bush is.
- After the complete cessation of fruiting, which is checked by the absence of color ovaries on the bush, you need to remove the old mulch from the garden (if there was one). Then we remove the weeds with roots. As soon as the bed is completely clean, it is necessary to examine the bushes from all sides for signs of disease or pests. Most likely, wasps, ants, if they were on your strawberries, then by autumn you probably got rid of them. As for the nematode, which is leafy (living on leaves) and soil (living in the ground), things are much more complicated here.
- Firstly, they lay their larvae in the habitat they need (bush or soil).
- Secondly, they quietly hibernate until spring, when it will be possible to start eating fresh crops again. The task of the gardener is to notice them and destroy them. And it will be possible to do this by removing damaged bushes from the garden and destroying them. The bush on which the nematode settled looks slightly underdeveloped, it is noticeably smaller than the others, the leaves on it, having dried out, do not have time to straighten out. And in general, it has a dryish-yellowish appearance.
- As soon as noticeably vulnerable bushes are removed, you can proceed directly to pruning. We cut off the young, reappearing leaves. Do not forget about the necessary removal of the mustache.Well, if you need additional planting material, then it is quite acceptable to sprinkle with earth a strong mustache from a well-bearing bush. In order not to lose a high-yielding bush over time, it is advisable to tie any bright ribbon to the stem during pruning.
- We remove all the mustaches correctly, as they say "under the root", that is, to the base. When working with mustaches, we also pay attention to old leaves: if any defects (yellowness, dryness) are noticeable on them, then they must be cut off, since flaws are the first sign of the disease.
- It is better not to remove the leaves on newly planted young bushes (which are less than a year old), as this greatly injures an already not very strong plant.
- Carrying out the above measures, the main thing is not to overdo it with the removal of foliage, since excess can lead to a painful state of the culture. The cold and rainy days coming in autumn will be the reason that amplifies the adverse effect. Thus, it is not worth postponing the procedure, waiting for the approach of autumn.
Timing and methods
In addition to the pruning itself, it is equally important to meet the required deadlines. Since today there are different varieties of strawberries (early ripening, medium ripeness and late), it is quite difficult to establish any unambiguous dates, and besides, climatic conditions largely influence the ripening of berries. In this regard, some gardeners prefer to perform the procedure closer to autumn, while others assure that it can be carried out in the summer, almost immediately after fruiting.
Considering the influence of climate on strawberries after fruiting, the following seasonal features should be noted.
- If you postpone the procedure until autumn, then the fact that the plant will not have time to recover by the onset of cold weather is not ruled out.This will greatly complicate the culture of wintering. There is nothing to prune immediately after harvesting, except for the wounded leaves. But for the most part, we are not interested in them, but in the young, newly appeared foliage, which will immediately begin to attract the attention of pests. This is one of the reasons why it is recommended to prune in the summer without delaying until the fall.
- Usually, after a full harvest, about 2 weeks are counted and the bushes are pruned. Most often this happens in July.
- If we talk about pruning methods, then experienced gardeners have their own techniques. Some, so that the plant does not suffer, absolutely all the sheets are cut with secateurs at a height of about eight centimeters. Others remove almost everything under the root. Someone prefers selective pruning to absolute pruning: young foliage and part of the old. The choice of pruning method depends directly on the severity of winter in the region.
- In severe winters, good insulation is required. Most likely, dry branches cannot be dispensed with here, but you will have to resort to the help of warm rags, which can break a fairly tall bush. If the winters are not severe, then you should not injure the culture too much, you can get by with selective pruning, and cover the strawberries with dry grass and branches for the winter.
- But the most optimal pruning, according to experts, is when the bed is completely covered with a plastic film, on which small holes are made for each bush. Strawberries are cut off completely so that a small bunch sticks out of the hole, which does not deform even from heavy rags, and the film will retain heat all the time.
- In no case and under no circumstances should the procedure be performed manually, as it is likely to disrupt the root system of capricious strawberries.
- There are cases when gardeners made mulch from cut leaves, but this approach to business can harm the culture, since the foliage (especially with flaws) can be affected by something (insects, diseases), which will pass to healthy bushes.
Aftercare
After proper processing, it is necessary to take care of the injured bushes and the soil, which must first be loosened, which will enrich it with oxygen. We do this not only around the bush, but throughout the garden, including row spacing. It is recommended to pay attention to the humidity. If the soil is moist enough, then you do not need to water the crop, and if it is dry, then water the strawberries as usual.
You should immediately take care of feeding. If there are no obvious signs of any disease, then it is better to purchase combined agrochemicals in specialized stores, where there is a whole range of necessary elements (fluorine, potassium, nitrogen, and much more). In the post-harvest period, the use of such chemicals is quite acceptable, since the berries are harvested, which excludes harm to human health. And a substance diluted in the correct proportions cannot harm a plant.
But do not forget that their use is highly undesirable from the moment the ovaries are formed, as it leads to the accumulation of nitrates on strawberries.
Having enriched the soil, it is recommended to take care of the mulching of the beds, which will help to keep the heat and moisture necessary for the roots in the ground. An ideal option for mulch would be peat, which is irrigated with a solution of ammonia. Its fragrance repels many insects: ants, wasps, and the relatively elusive nematode.
Along with the nematode, in the summer, strawberries are often affected by spider mites, due to which the sheets take on a crumpled appearance resembling corrugated paper. In principle, the pungent smell of ammonia will frighten away the insect, but after harvesting, nothing prevents you from using a specialized preparation that eliminates the direct cause of the plant's disease.
There is absolutely no guarantee that strawberries processed in July according to all the rules will not pick up rot by autumn, which has different forms of manifestation. Therefore, closer to September, it is recommended to treat the garden bed with an aqueous solution based on brilliant green. Zelenka, like nothing else, prevents the occurrence of this disease, in addition, its action is aimed at strengthening the immunity of the plant.
For the purpose of prevention, we prepare a solution at the rate of one drop per liter of water, irrigate the bed with the resulting concentrate. At the first signs of the disease, we make a stronger solution (two drops per liter of water), irrigate 2-3 times a week until the culture is completely cured. We warm the bed for the winter and wait for the onset of spring.
For information on how and when to cut strawberries, see the following video.