Practical advice: How to properly disinfect a greenhouse?

Greenhouse disinfection is usually done in the fall or early spring. It is one of the primary things that will affect the success of seedling production and the quality of vegetables grown in it. You must be wondering why she is so important?

Foto:Pixabay

The answer lies in the conditions prevailing in the greenhouse. Higher temperatures than the external as well as the increased humidity create a suitable ground for progress pathogenic and reproduction and action adverse insects which can decimate cultivated crops.

Disinfect the greenhouse when you are harvested fruits and completed crop production. These are exactly the parts of the year that are listed above. You know how important the hygiene of your own house is in the desire to get rid of dirt, dust and microorganisms, and plants also need to clean their house in order to make a satisfactory profit. We tell you in what ways it is best to clean the garden “under the roof”.

Exterior and surroundings of the greenhouse

Before you start disinfecting the interior, dedicate yourself to cleaning the greenhouse on the outside. You need to remove the items you used (crates, pots) pluck weeds and make yourself a path (if you don’t have one) that will lead you to the greenhouse so that you don’t tread on puddles and wet ground, and in that way bring it into your greenhouse.

One little tip that can help you get rid of pests. As you well know the smell of a particular herbs repels insects that cause damage to cultivated crops. Basil for example protects against plant lice, kadifica of potato beetle, dragoljub of whitefly, and its scent attracts a very useful insect – ladybug, lemon balm is suitable if you grow cabbages because it protects them from pests, cabbage fly because of the intense smell sage “Leaves alone” cabbage.

On the outside of the greenhouse, parts of plants can remain at the places of its assembly. In them, pests can sometimes hide and cause damage to new crops. Therefore, it is very important to clean the exterior of the greenhouse and you can do it with specialized eco-detergents.

Inside the greenhouse

When you have dealt with the outside of the greenhouse and the work around it, it’s time to start with the most important work – by disinfecting the inside of the greenhouse. It is important not to randomly remove items that are in the greenhouse but to go in a row.

First, metal, plastic or wood are removed from the greenhouse plant aid, and it is recommended to purchase new ones for the next vegetation season. Then it is done removal of plant debris, that is, fruits, leaves and trees of plants (when a tree is broken, the root is pulled out with it, and if you have grown cabbage or some other crop that removes the aboveground part and the root remains buried in the ground, it is necessary to remove it individually).

These plant debris that we removed we can put in a composter and use from as a nutritious fertilizer for subsequent cultivated crops. However, you need to be careful, because if you put diseased parts of plants you can transmit bacterial and fungal infections with compost to new plants. Thoroughly inspect all plant debris before using it for compost.

Tomato in a greenhouseFoto:Pixabay

After removing the plant debris, it’s your turn mulch foil and irrigation pipes who also need disinfection. It needs to be done outside the inside of the greenhouse.

How to disinfect the inside of the greenhouse?

You need to take for this purpose sulfur strips. The procedure is performed at temperatures above 12 degrees and use protective gloves and a mask when working. For an area of ​​1 cubic meter, 10 to 20 grams of sulfur are consumed. After you light the sulfur strips, get out of the greenhouse immediately as sulfur dioxide is formed. When you get out, close the greenhouse well.

It is also important that all openings in the greenhouse are closed. It needs to pass the minimum 24 hours and during that time you must not enter or open the greenhouse. After that, it is necessary to ventilate the greenhouse.

If we have decided not to throw away the foils, we need them cleaned, as well as the frames we used. This is done with warm water or water to which baking soda has been added.

Strawberries on mulch foilPhoto: Agromedia

Disinfection of tools

How tool, which we used in the greenhouse, we touch the ground and plants, it can benefit the spread of infection. Therefore, wash it well with hot water, disinfect it in a five percent solution of blue stone, dry it and coat it linseed oil to prevent metal corrosion.


Source: Agromedia by www.agromedia.rs.

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