Coffee is the reason for many people to get up in the morning. Fungus gnats see things completely differently. The pests take off as soon as they notice coffee grounds near them. Use this aversion to fight the unpleasant animals. On this page you will find interesting information about the use and effectiveness of the captured coffee powder.
How does coffee grounds work against fungus gnats?
Coffee grounds against fungus gnats work effectively by sprinkling dried coffee grounds over the potting soil to completely cover the surface. This prevents fungus gnats from accessing the potting soil and interrupts the reproduction cycle.
Which coffee grounds are suitable?
No matter whether you brew fresh beans in the coffee machine in the morning or use pre-ground coffee, almost any coffee grounds are suitable for combating fungus gnats. In addition to the coffee filter, you can even use the leftover coffee capsules. However, the extraction is a bit more difficult.
Application
- Whether you collect the coffee grounds first or add them to the potting soil straight away is up to you.
- The amount required depends on both your coffee consumption and the intensity of the infestation.
- Pour out your coffee filter on a plate or place the coffee grounds in a large bowl.
- You have to cut open the coffee pods and empty them too.
- Spread the coffee grounds on the chosen surface.
- Sprinkle the coffee grounds over a large area so that the bottom layer does not start to get moldy.
- Now let the powder dry.
- Once you have collected enough coffee grounds, pour them over the substrate of the affected plant.
- Make sure the soil is completely covered.
What to pay attention to?
Coffee grounds change the pH value of the substrate slightly. For sensitive plants with high soil requirements, you should only apply a thin layer. It is also necessary to cover the substrate of neighboring plants so that the fungus gnats do not jump to them. Sand, for example, is recommended for this.
How it works
Sad gnats lay their eggs in the potting soil. The hatching brood later feeds on the plant. With the coffee grounds you prevent pests from accessing the potting soil and thus interrupt the reproduction cycle.
