Mustard mixed with water and sprayed makes an effective vermifuge as earthworms dislike the pungency of mustard. Mustard is not harmful to the grass, other plants or human beings. Mustard therefore makes an environmentally friendly earthworm repellent.
How do you deter worms?
Natural ways to control worms casts1Leave your lawn longer. A longer grass brings a healthier lawn. ... 2Reduce the worm food source. Keep the leaves off your lawn in the winter. ... 3Improve the drainage. Worms tend to put up more casts and seem to be more active in wetter soils. ... 4Brush casts away when they appear.Should you try to control worm casts on your lawn?
How do you get rid of worms naturally?
There are, however, some practical and earth-friendly ways to deal with worm castings on a lawn:1Rake or sweep castings across the lawn when they are dry. ... 2Don't overwater. ... 3Mow high and keep the lawn healthy to hide the castings and minimize the unsightliness.4Use a roller to press down the castings.How to Deal With Earthworm Castings on Your Lawn - The Spruce
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