Sulfur checkers for polycarbonate greenhouses, how they work, what they are used for

Sulfur checkers for polycarbonate greenhouses, how they work, what they are used for

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Fungal diseases, pests and bacteria are among the most common problems with growing plants in a greenhouse. Indoor conditions are great for both seedlings and harmful organisms.

There are many methods of how to protect yourself from the spread of parasites, and one of the most famous is the treatment of the greenhouse with a sulfur stick.


  1. What are sulfur checkers for polycarbonate greenhouses, where to buy
  2. When to treat a greenhouse
  3. How does the sulfur checker work?
  4. Is it possible to use a sulfur checker for a greenhouse with seedlings
  5. Rules for the use of sulfuric checkers, what are the benefits and harms

What are sulfur checkers for polycarbonate greenhouses, where to buy

Sulfur checkers are a set of 5-10 tablets. The product contains 750 g / kg of sulfur, which is the main active ingredient.

When preparing a substance for processing, it is important to take into account that the number of tablets recommended for use depends on the size of the room (calculate in a ratio of 50-150 mg per cubic meter).

Depending on the substances that are part of the product, fungicides may differ in the nature of their action:

  • Sulfuric - burning, they produce sulfur anhydrite, which eliminates insects, fungi and mites. Depressing effect on small animals. Used for insecticidal and bactericidal treatment;
  • Didecyldimethylammonium bromide preparations have a bactericidal effect. Recommended for the elimination of bacterial and fungal diseases, the destruction of insects;
  • Hexachloran - have a neuroparalytic effect, are used to prevent the reproduction of soil insects, butterflies and caterpillars. Not suitable for killing ticks;
  • Tobacco - in the process of burning, they release nicotine. Used to fumigate greenhouses from insects;
  • Permethrin - have a neuroparalytic effect directed at moths, all flying insects and ants.

You can buy checkers both in a specialized store and order on the Internet. But in the second case, you should be careful, as there is a danger of running into a fake.

Before buying a drug, it is important to determine what specific problem is of concern. Different types of checkers act on diseases and insects in different ways, which is important to consider when choosing.

When to process a greenhouse

It is important to remember that fungicide smoke is highly toxic. When processing a room with plants that are in the growing season, the risk of death of cultivated species increases.

Processing is recommended to be carried out during the break between harvesting and planting new plants.

Depending on the degree of damage, the frequency and nature of fumigation differ:

  • The initial level of damage by fungal and bacterial pests. In this case, it is recommended to process the premises once a year in the fall. This is enough to damage bacterial colonies and fungal spores. The rest will die with freezing of the soil in winter;
  • Critical lesion rate when fumigation once a year fails. In this case, it is recommended to carry out processing in the fall, before mothballing the greenhouse and in the spring, before the direct planting of new plants. With this processing scheme, all pests that survived the autumn processing and winter frosts will be completely destroyed.

It is important to remember that as a result of the impact on the soil of sulfuric acid, it is actively absorbed. This negatively affects the acid-base balance of the substrate and can damage the plants. Therefore, planting should be done only a week later - the second after spring fumigation and replacement of the upper layer of the substrate.

How does the sulfuric checker work?

The scheme of action of the tool is simple and consists of only a few points.

Consists of the following stages:

  • After lighting the wick, sulfur begins to smolder, which is part of the composition;
  • Anhydrite is produced;
  • The released gas mixes with oxygen and thus fills the room.

This method of processing compares favorably in a number of indicators, in addition to safety, before the spark hits the checker, the wick will smolder for at least two minutes, this series includes:

  • The speed of action;
  • High efficiency;
  • Relative efficiency;
  • Simplicity and ease of use.

The smoke that is emitted during the fumigation process seeps into places such as cracks in the foundation, joints of frame parts and other hard-to-reach parts of the greenhouse. Often, this is where the accumulation of parasites and pathogens occurs.

Anhydrite, which is produced during combustion, combines with oxygen to form sulfurous acid. This gives an additional disinfecting effect for the walls of the room and the substrate.

Is it possible to use a sulfur checker for a greenhouse with seedlings

The use of sulfur sticks for fumigation of greenhouses with live plants is not recommended. This can provoke the development of burns on the leaves and even provoke the death of seedlings.

Fumigation should be carried out between collection and disembarkation. This is the optimal time when the action of the fungicide is directed at the pests.

To fumigate the seedling rooms, you can use a tobacco stick. Nicotine has a more gentle effect on green living organisms than sulfur.

Sulfur dioxide, in contact with plants, has a depressing and destructive effect. Therefore, the fungicide treatment of the premises during its active use negatively affects the condition of the crop.

Rules for the use of sulfuric checkers, what are the benefits and harms

Despite the fact that at least two minutes pass from the moment the wick is ignited until the spark hits the tablet, caution should not be neglected. It is necessary to install and set fire to the tablets wearing tight clothing and taking care of protecting the respiratory tract.

In order for fumigation to be as effective as possible, it is worth preparing the greenhouse before starting treatment.

This requires:

  • Carry out a complete cleaning of the greenhouse, cleaning all accessible corners as much as possible;
  • Wear tight clothing and respiratory protection;
  • Caulk all possible exits and crevices to achieve maximum greenhouse sealing;
  • Before direct processing, it is recommended to moisten the surface of the soil and walls with water;
  • Place checkers on a hard surface (stones, metal plates);
  • The number of tablets should be selected from a ratio of 50-150 mg per m3. More precisely, you need to determine independently, depending on the degree of damage;
  • For ignition, you can use paper that is underneath it, a wick or pure kerosene.
  • It is important to remember that the use of gasoline in this case is strictly prohibited;
  • After setting it on fire, close the door tightly and do not open it for three days. After that, ventilate the room.

It is worth using sulfur checkers after several years of growing the same species, the presence of outbreaks of diseases, fixation of harmful organisms. When using the product, the top layer of the substrate is disinfected.

However, before using the drug, it is important to soberly assess its benefits and harms. So, the use of tablets is distinguished by the speed of action and low cost.

The use of sulfur checkers is that their use helps not only quickly and effectively get rid of small insects, but also scare off rodents.

With the timely cleaning of the greenhouse from pests, the chances of re-infection are significantly reduced. This will help keep the plants from being damaged by pests.

However, it is important to remember that fumigation can be harmful in addition to its benefits.

The main disadvantages are:

  • High toxicity of sulfurous smoke. Therefore, fumigation of a sealed greenhouse should be carried out without the presence of a person in it. Otherwise, the danger of poisoning increases;
  • Sulfur significantly lowers the fertility of the substrate. To prevent the development of this problem after processing, you need to replace the top layer;
  • Sulfurous smoke has a negative effect on metal parts, which is important to consider before igniting. It is recommended to cover all metal parts with a primer.

It is important to remember that the products will only solve the problems with plant parasites and diseases if used wisely.

If fumigation is too frequent or during the growing season, fumigation will do more harm than good.

Sulfurizing greenhouses is one of the most common pest control methods. Providing a depressing effect on small rodents, the agent completely destroys fungi, bacteria and harmful insects.

However, it is important to remember that with all its advantages, this is a highly toxic drug and when using it, it is recommended not to forget about personal protective equipment.

You can learn more about using sulfur bombs for greenhouses by watching the video:

Watch the video: Sunken Greenhouse Part 3 - framing, polycarbonate install how to (June 2022).