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Q.My Roof Has Been Treated With Fungicide

Zone France | Petrus added on July 27, 2023 | Answered

I use rain water from the roof to water my vegetable garden. The roof has recently been treated with fungicide to kill the moss and lichen. Is it safe to continue watering my garden with water from the roof?

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Certified GKH Gardening Expert
Answered on July 27, 2023

This is a difficult one. This really depends on the types of fungicides used.

The time it takes for fungicides to break down can vary depending on the specific fungicide and environmental conditions. In general, most fungicides break down within a few weeks to a few months. However, some fungicides can persist in the environment for longer periods of time. It is important to follow the instructions provided by the manufacturer and consult with local regulations for specific information on the breakdown time of a particular fungicide.

I would use caution and test on a small portion of your garden or plants, first, before using it in a widespread manner.

Here is more information on types of fungicides:


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