Gegen Schädlinge gewappnet: Artemisia annua als natürliches Pflanzenschutzmittel

Armed against pests: Artemisia annua as a natural plant protection product

|

Lesezeit 6 min

At a time when sustainability and environmental friendliness are becoming increasingly important to many people, the extent of the problems caused by chemical pesticides is also becoming increasingly clear worldwide. The search for natural pesticides is coming into focus – and with it the role of Artemisia annua , whose potential in this context has already been confirmed by various studies. This extraordinary plant contains numerous valuable ingredients and compounds that are not only associated with insecticidal effects but can also strengthen the plant's own resistance .

In this article, we explore the promising applications of this unique plant in agriculture. Learn why Artemisia annua is not only a valuable companion in pest control, but can also promote local biodiversity and soil health .

The ingredients of Artemisia annua

When considering the potential effects of Artemisia annua as a pesticide, we must first take a closer look at its constituents. These possess valuable properties that form the basis of its use as a biopesticide.


It should be noted that the following ingredients represent only a fraction of all the ingredients that, when combined, can contribute to pest protection. However, listing all relevant ingredients would go beyond the scope of this article.

Artemisinin

Artemisinin is the key component of Artemisia annua, and has been extensively studied, especially in recent years. This is because it may have insecticidal effects . This property is naturally particularly beneficial in pest control.

Flavonoids

Artemisia annua is exceptionally rich in various flavonoids, including quercetin and luteolin. These are primarily known for their antioxidant and antimicrobial properties , which can inhibit the growth of pests and thus act as a natural pesticide .

Essential oils

The many essential oils of Artemisia annua have a strong fragrance that is often used in aromatherapy applications. However, pests don't react well to this scent. Therefore, it can also serve as a repellent that can deter or even kill pests.

How does Artemisia annua work as a pesticide?

As a natural pesticide, Artemisia annua has various effects to keep pests away from the plant and strengthen its natural power. The most important effects include:

Pest control:

As already mentioned, Artemisia annua produces essential oils, many of which have a very strong scent. This, along with the protective effects of other ingredients, can deter pests from approaching and attacking the plant. Thus, an Artemisia annua plant spray can act as a natural shield. For example, in Nigeria, farmers plant a row of Artemisia between their corn crops to ward off corn pests.

Insecticidal and acaricidal action:

Artemisinin in particular, but also other components of Artemisia annua, have insecticidal and acaricidal effects. Various studies have confirmed the effectiveness of Artemisia annua extract against pests such as mosquitoes, thrips, and mites. In other studies, Artemisia annua extract has been successfully used against various tick and mite species.

Strengthening the plant’s own defenses:

Certain flavonoids and other secondary plant substances can contribute to making the plant itself more resistant to germs and environmental pollution through their antioxidant properties.

Many of our customers report great success using Artemisia annua as a pesticide. In some cases, they were able to eliminate virus and mite infestations by applying Artemisia annua foliar spray. They treated the affected plants regularly (about once a week) until they noticed no recurrence after a few weeks.

The benefits of an Artemisia annua plant protection product

Compared to conventional pesticides, the use of Artemisia annua offers numerous advantages. Some of these include:

Environmental friendliness

A pesticide made from Artemisia annua offers an environmentally friendly alternative to synthetic pesticides. Because the ingredients of Artemisia annua are of natural origin, they can be completely broken down in the environment. This leads to less pollution of the soil, water, and treated plants. A pesticide based on Artemisia annua not only offers high effectiveness but also contributes to the preservation and protection of our environment.

Versatile effects

Due to the diverse constituents of Artemisia annua, a corresponding pesticide has a broad spectrum of activity. These ingredients not only act as insecticides but can also protect the plant from various diseases caused by pathogens . Furthermore, they can increase the plant's resistance to environmental damage.

Lower health risk

Synthetic pesticides have increasingly come under scrutiny, especially in recent years. The use of chemical substances in agriculture is increasingly suspected of endangering the health of both farmers and consumers. A biopesticide based on natural compounds, such as Artemisia annua, therefore offers the additional advantage of a lower health impact. It minimizes suspicions of chemical residues in food and promotes sustainable plant care that is in harmony with our health.

Promoting biodiversity

Chemical pesticides not only endanger the health of humans, but also that of animals and other organisms. For example, important insects such as bees and butterflies can suffer and even die from the effects of the chemicals. This has devastating effects on the ecological balance and the biodiversity of flora and fauna. Natural pesticides, such as one based on Artemisia annua, pose no threat to the ecosystem and thus promote natural biodiversity. By maintaining a balanced ecosystem, they contribute to the long-term stability and biodiversity of nature .

Less resistance development

The development of pest resistance to conventional pesticides is a widespread problem in modern agriculture. Due to the complex composition of Artemisia annua, which includes many different bioactive compounds, the likelihood of rapid resistance development is reduced. This could ensure the long-term effectiveness of the Artemisia annua pesticide.

Instructions: Make your own Artemisia annua plant protection spray

Making an Artemisia annua pesticide is easy and requires only a few ingredients. Here are some basic instructions to help you make your own pesticide spray:


This is what you need:

  • dried Artemisia annua leaf powder
  • Water
  • Sieve or filter cloth
  • Bottle or spray application for storage

Here's how to proceed:

  1. Depending on the desired intensity, mix the leaf powder with water in a ratio of 1:5 to 1:10 and let the mixture steep for a few hours or overnight.
  2. Filter the water through a sieve or filter cloth to remove the solid particles.
  3. Store the finished extract in a closed container in a cool, dark place. Please note that the shelf life may be limited. Therefore, it is advisable to prepare smaller quantities and use them promptly.

Note: As an alternative to a homemade pesticide, you can also buy a high-quality Artemisia annua extract and dilute it with water.

How can I use Artemisia annua in plant care?

There are several ways Artemisia annua can be used in natural plant care. These include:

Spray application:

The most common method is to fill the Artemisia annua pesticide into a spray bottle and spray it directly onto affected plants. This can help keep all kinds of pests away and combat diseases. Weekly spraying in the greenhouse can either have a direct virucidal effect, for example, against the cucumber mosaic virus, or it can kill mites that transmit leaf diseases, such as leaf viruses in cucumbers or the bronze spot virus on tomatoes in tunnel cultivation.

Soil fertilization and health:

You can incorporate Artemisia annua, either as a liquid pesticide spray or the dried leaves, into the soil or use it as an ingredient in fertilizers. This can inhibit the growth of harmful organisms and improve soil health.

Combination with other plant protection products:

You can also use Artemisia annua plant protection spray in conjunction with other natural pesticides. For example, you can combine it with nettle or garlic manure. The synergistic effect of the ingredients can increase the effectiveness of the final pesticide.

Conclusion

As you can see, Artemisia annua offers us tremendous potential. Its use as a pesticide not only provides effective protection against pests, but also represents an important step toward environmentally friendly agriculture.

Here, Artemisia annua opens the door to a more sustainable future. It reminds us that nature's possibilities are endless—even when it comes to the careful management of our environment. Artemisia annua is just one example of the numerous treasures nature offers us. And we believe that we only need to look more closely to recognize nature's many powerful wonders. Be a part of the movement paving the way for a greener future.