I read that a tablespoon ... #658055

Asked June 30, 2020, 11:44 AM EDT

I read that a tablespoon of castor oil and a tablespoon of dish soap diluted with a gallon of water in a sprinkling can can be used to tread the soil in a vegetable garden to prevent voles. We have a vole infestation in our community garden which is organic. Will the castor oil diluted in this fashion harm the veggies or make them taste bad?

Cuyahoga County Ohio

Expert Response

This is a natural non toxic way of repelling voles in your garden.  Weekly application is the most effective way to maintain the problem. You can use this castor oil, soap and water  mixture in the vole tunnels or spray on the ground. I would probably avoid spraying it on your plants.   It will not harm the  veggies or make them taste bad.

Here are a few other options to consider:

Use coyote or fox urine granular deterrents around the perimeter of your garden. These can be found at many garden supply or big box stores.

Trapping the critters

ultrasonic repellers placed in the voles tunnels.

I hope these tips were helpful.
Donna Replied June 30, 2020, 6:41 PM EDT

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