A natural pest control solution, fermented rhubarb tea can be used during the entire rhubarb growth phase.
It is also possible to keep using the fermented tea after maceration for several weeks to several months.
When you choose to use fermented rhubarb tea, you’re supporting the environment while effectively treating your plants.
What is fermented rhubarb tea used for?
It is also used against allium leaf-mining fly that often attacks leek.
Preparing fermented rhubarb tea
There are 2 methods, both of which are very effective.
- Macerate 35 to 50 oz (1 to 1.5 kg) rhubarb leaves in 10 quarts (10 liters) water for around 72 hours.
Filter solids out and retain only the resulting tea.
Spray with a spraying bottle or sprayer.
- The second option is to directly throw the leaves in boiling water, which will jump-start the maceration process.
Let sit for 24 hours and spray on your plants.
Which plants can fermented rhubarb tea be used on?
On all plants usually attacked by aphids.
It can also be sprayed on leek to fight allium leaf-mining fly worms.