How to fight against the garden bug?

Green, red or brown, the garden bug feasts on vegetables from the kitchen garden! Find out how to recognize them and what treatments to use to combat these pests.

To discover :

  • Fight against flea beetles
  • Make a decoction of garlic

Different species of bedbugs

We are well aware of the bedbug that nestles in our homes, leaving its foul odor there. By the way, the Latin etymology: putinasius means to smell bad ... In the garden, several species of bugs come to annoy the gardener.

  • The green bug: it is the most feared because it particularly appreciates nightshades (tomatoes, eggplants, potatoes), but also beans and cucumbers. As its name suggests, it is recognizable by its characteristic green color.
  • Cabbage bugs: Eurydema ventralis, Eurydema ornata and Eurydema oleracea which puncture the leaves and suck their sap. These different insects have red and black patterns.
  • The evil bug: its appalling name hides a brown to gray insect, native to Asia, gaining ground in France due to global warming. It wreaks havoc in orchards, but also in squash and crucifers. It has two white markings on its antennae, unlike the European bug which has three.
  • The bug Lygus pratensis: light brown in color, it affects both flowers and vegetables such as cucumbers, strawberries, peppers, etc.


Regardless of the species, the bug is made up of a head, thorax and abdomen. It also has two antennae and two pairs of wings. Three pairs of legs allow it to move on plants and it measures between 1cm and 1.5cm.

Life cycle

Bedbugs reproduce by laying small, translucent eggs on the undersides of the leaves of plants they love. A few weeks later, small larvae hatch. They already look like the adult insect, but will need to go through five stages to reach their final development. These sucking stinging insects will feed on plants in the kitchen garden, orchard or flowers depending on the species. They sting leaves, fruits and flower buds, then suck their sap. They thus weaken the plant and can even cause its loss.

Preventive control techniques

The only preventive technique is the installation of a insect net which will allow you to make a barrier for all the pests of the vegetable garden.

Natural treatments for garden bugs

Garlic and chilli decoction

This decoction would have a repellent effect on bedbugs.

  1. Boil a liter of rainwater or filtered water
  2. Add 100g of crushed garlic and 1 finely chopped pepper
  3. Keep boiling for 15min
  4. Cover and let infuse for 12 hours
  5. Pour the preparation into a sprayer using a Chinese to filter it

You can keep this decoction in the fridge for 10 days. To use it, simply spray it on the plants concerned.

Absinthe manure

Some gardeners recommend wormwood manure. To do it yourself, nothing could be simpler!

  1. Fill a container (non-metallic) with 10L of rainwater or filtered water.
  2. Place 1kg of chopped and fresh wormwood or 100g of dried wormwood in a cloth bag.
  3. Put the bag in the water.
  4. Mix daily with a stick.
  5. As long as bubbles rise to the surface, fermentation is in progress. As soon as this is no longer the case, your liquid manure is ready!
  6. Pour it into bottles or cans.

To use it, you will need to dilute it to 10% in water (10cl of liquid manure for 1L of water) and spray it on your plants.

Menthol spray

Mint, like wormwood, repels bedbugs. You can then make another mixture based on mint essential oil. Then add 5 drops of EO mint in 250ml of boiling water. Let cool and spray this solution on your plants prone to bugs. You can try to plant it near your crops, but this technique may be less concentrated, less targeted and therefore less effective.

Video: Are Aphids Destroying Your Garden? Heres What You Can Do! (October 2021).