How to use ammonia against the Colorado potato beetle on potatoes

How to use ammonia against the Colorado potato beetle on potatoes

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To get rid of the Colorado potato beetle on potatoes will help such a simple remedy as ammonia. Constant pest control is a problem for people who work in the soil. An insect attack affects the quantity of the crop and its quality. Despite the large assortment of preparations for the extermination of insects, experienced summer residents continue to use ammonia and do it with great success.

Why this remedy

The agricultural market is ready to offer a lot of insecticidal preparations. They have an effective effect in the fight against insatiable beetles. However, they are dangerous not only for root crops, but also for the person himself. Because of this, gardeners prefer traditional medicine, one of which is ammonia.

The ammonia solution repels beetles, and is also an excellent feed for tubers. As a result, insect control ends up with benefits for the plants. The effectiveness of the action lies in a strong and pungent aroma that repels pests. Due to the poor persistence of ammonia, the treatment is repeated after 1.5–2 weeks.

How does ammonia from the Colorado potato beetle work on potatoes?

The ammonia solution begins to act immediately after it hits the bush. Its smell is so strong that the pests are trying to quickly leave the bushes. As a rule, after 5-7 days there will be no Colorado potato beetles on the potatoes. Thanks to this action, ammonia is considered one of the most popular drugs.

Application features

You can use ammonia against insects in various ways. The solution is carefully applied to the root, which allows you to quickly get rid of the beetle. You can also make homemade traps using ammonia. To do this, take strips of cloth and moisten them in the solution.

Ready-made devices are placed between the potato beds. A pungent smell spreads over the entire plot of land. The Colorado potato beetle smells ammonia and tries not to approach the potatoes. In windy weather, the effect increases several times.

Spraying is considered no less effective. For this, ammonia in the form of a solution is diluted in water. Laundry soap is used as an additional ingredient. Before adding to the liquid, it must be chopped with a knife or grated.

Thanks to the soap, the mixture with ammonia stays on the leaves for a long time, and continues to scare off the Colorado beetles with a smell. He cannot eat potatoes covered with ammonia solution and escapes in search of other suitable territories. Clutches of eggs under the leaves also die over time. This method prevents the emergence of larvae and adults.

How to prepare the solution?

The cooking recipe depends on the method of use.

Under the bush

For a bucket of water you need to take 3-5 tbsp. l. ammonia solution. Stir the liquid thoroughly so that all components are combined. Then the ammonia is added to the root. Under one bush, you must pour at least 0.5 liters.

Scare traps

For traps, fabrics from any material are taken. They are cut into even strips and moistened in an ammonia solution - 3% is enough. After the fabric has absorbed a sufficient amount of ammonia, they are distributed between the beds throughout the area. The beetle smells and runs away.

Spraying plants

Ammonia is diluted in water - 500 ml of substance goes to 10 liters. There is another option - 50 ml of ammonia per bucket of water. Before spraying the bushes with beetles, add less than half of the laundry soap. To make it dissolve faster and mix with the rest of the components, it is crushed.

Watering with a wide nozzle is considered a good alternative to spraying. The sprayer works in such a way that most of the liquid is volatilized.

When to carry out the procedure

The most appropriate time to use ammonia solution against the Colorado potato beetle is morning or evening. It is desirable that on the selected days there is no wind and precipitation in the form of rains. The procedure is repeated as needed if the pest begins to appear on the bushes again. As a rule, from 2 to 3 sprays with a solution of ammonia are carried out per month.


Ammonia is characterized by the presence of a pungent specific odor, which beetles do not like. As it turned out, ammonia also negatively affects the human body. To avoid poisoning, the solution is prepared outside. All the time a person is working with the drug must be in a respirator.

Ammonia and Coca-Cola against the Colorado potato beetle

In addition to ammonia, there is another remedy that also chases the insect from the beds with lightning speed. This is the popular Coca-Cola drink. One of the ingredients is phosphoric acid - a real poison for parasites. In turn, phosphorus is an important component in the preparation of insecticides. The effect of using an ammonia solution becomes noticeable after 5–8 days.

How to prepare the solution?

There are 2 options for preparing the solution. In this matter, the degree of damage to the vegetable by the Colorado potato beetle plays an important role:

  1. If pests have just begun to appear on the beds, they are chased away with a solution of weak concentration. In this case, only water and Coca-Cola are taken in equal parts.
  2. A moderate or severe degree of damage requires the preparation of a drink with an increased concentration. For 5 liters of sweet Cola, there is 1 liter of water.

The liquid is sprayed on the leaves on both sides. In no case should you spray on flowers and buds. The drink can be used separately from other anti-bug ingredients. If the liquid is prepared on the basis of Coca-Cola and water, the composition should not contain other components, especially ammonia.

Fertilizing potatoes with ammonia

An ammonia-based solution has established itself as a good vegetable feed. Contains a large amount of nitrogen. The ammonia solution promotes the formation of chlorophyll. Thanks to this, in cloudy weather, potato bushes will not suffer from a small amount of sunlight.

The need for nitrogen can be determined by the following signs:

  • poor shoot growth;
  • small leaves with an underdeveloped structure;
  • in the lower part, the bush is covered with yellowed foliage;
  • thin stems.

Nitrogen is a substance that brings enormous benefits to culture. But in this regard, you must adhere to accuracy. If you add too much ammonia solution, the effect is reversed. The bush becomes more lush and the tubers decrease in size.

Ammonium also affects their quantity - it decreases.

Other ways to deal with the Colorado potato beetle

In addition to ammonia and Coca-Cola, other equally popular traditional medicines are also used. This can be wood ash, onion husks, or tar. Urea is considered to be no less effective. Solutions are prepared from these components or used in pure form.

Prevention against the beetle

Recipes for scaring off the Colorado potato beetle, which are based on ammonia, are time-tested. They remain relevant to this day. But this does not mean that one procedure with a solution will help solve the problem with an infestation of beetles. It is necessary to periodically treat the potatoes with ammonia to deprive the Colorado beetles of the opportunity to feed on them.

Feedback from our readers

Mikhail: “I don’t want to use chemicals, so I risked trying ammonia. What was my surprise, the method really works. They will always use only ammonia solution. The only drawback is re-spraying, as the smell disappears over time, and the Colorado potato beetle returns. "

Alexey: “Every year I am surprised at the state of the potatoes that grow on the land of the neighbors. They do not have a single beetle, not that I have a whole riot. I decided to find out their secret. It turns out that the whole point is in ammonia. Now I know the recipe and will try it in my garden. "

Watch the video: Various Good and Bad Potato Insects