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Raspberries: cultivationand defense against the most common diseases. Useful tips, from planting to harvest.
It's possiblegrow potted raspberry plantsor in the open ground. Of course, if raspberry cultivation is in pots, expectations in terms of harvest must be reduced. Although raspberry plants have a shrubby habit, with the right precautions, they can also be grown in pots.
Its scientific name isRubus idaeusand, the varieties that can be found on the market, can be divided into two large families: remounting and non-remounting. Why is it important to understand this distinction? Why based on the type ofraspberry plantpurchased, you will be able to understand which branches to cut when pruning.
THE raspberries they bloom from August to October and then, on the same branches, between June and July of the following year. In this case, the old branches should not be removed with pruning. On the other hand, non-remounting raspberries produces fruit between June and July on the new branches.
If you meangrow potted raspberry plants, make sure you buy a pot of the appropriate size - a diameter of about 40cm per plant will do. If you want to grow more raspberry plants, you can use a planter, in this case you will need to leave 45 cm of space between one plant and another.
How to plant raspberries
If you bought a raspberry plant to grow in the garden, you will need to dig a hole that is at least 50 cm deep. At the bottom of the hole be sure to add some compost and, before planting, wet the roots of the plant.
Theraspberry plantsthey need a fairly acid fertile soil. Purchase specific soil or enrich the universal soil with mature peat and compost. This mixture will be useful to you both if you wantgrow raspberries in pots, or if you want to start thecultivation of raspberriesin the garden and want to improve the quality of the soil. Like? When planting, fill the hole with the specially formulated soil mixture mixed with a portion of the excavation soil.
Raspberries: cultivation and care
Incultivation of raspberriestwo factors are fundamental:
- Pruning and topping
- Disease cure
When the plant has produced its red fruit, isprigsthat dry goprunedtogether with the weakest suckers, diseased branches and damaged branches. It is essential to harvest raspberries every day to avoid gray mold which can spread easily, compromising the entire harvest.
Incultivation of raspberriesin fact, a big limitation is linked to the gray mold that affects the fruits making them inedible. Therebotrytis(or gray mold) can be countered with preventive treatments.
Botrytis or gray mold
How to cure a raspberry plant affected by gray mold?
When the raspberries become covered withmold, it is important to ask yourself some questions, maybe you are doing something wrong!
- Are the plants spaced at least 40 - 50 cm from each other?
- Is there any other vegetation that prevents good aeration?
- Does the soil create water stagnation?
- Are plants subject to stress related to excessive pruning?
- Are you exaggerating with irrigations?
- Are raspberry plants placed in the shade?
Botrytis, in fact, is a fungal disease that spreads more easily in humid and dense environments, with a temperate climate. Theregray mold in raspberriesmust be managed through careful agronomic practices that we will describe in the paragraph dedicated tocareto be dedicated tocultivation of raspberries.
In case ofdisease in progress, it can be countered by using fungicides such as "Boscalid" or, even better, with "karma 85" allowed in organic farming and based on 85% potassium bicarbonate. Not only does it stop the disease in progress but, with greater dilutions, it can also be applied to healthy plants for prevention.
Raspberry plants: care
ThecareI'm all incultivation of raspberries. How to grow raspberries?
- Do a winter pruning to get rid of dead and dead branches and a summer pruning.
- Eliminate the burnt branches of infected suckers (in case of diseases).
- Avoid fertilizing with excessively nitrogen-rich fertilizers such as manure, universal fertilizers or horticultural fertilizers. Use a specific fertilizer that is high in potassium.
- Use micro-irrigation to prevent disease, save water, and have tasty crops.
- Do not let infested grasses overpopulate the soil where they growraspberry plants. The grasses must never exceed 20 cm in height from the ground.
- A nylon sheet is useful to prevent iraspberriesget wet in case of high humidity and frequent rains.
Among the specific fertilizers we point out the potassium sulphate. Where to buy it? In garden centers, at agricultural consortia or by taking advantage of online sales. On Amazon, a 1.25 kg package of potassium sulphate is offered at a price of 18.28 euros with shipping costs included in the price. It is useful for all plants that fear the cold.
For all information on the fertilizer for raspberries I refer you to the page: Vitax potassium fertilizer