If you don’t have a face mask, you can also wear a bandana or towel over your mouth to keep out the dust.
Apply it close to the ground, and avoid spreading it over flowers that are in bloom so that you don’t harm bees.
If you have to spread it in light wind, opt for using a wet application to help keep the diatomaceous earth in place.
It’s okay to apply diatomaceous earth when the ground is wet after a rain shower, just make sure it’s not going to rain heavily afterwards.
For example, if you need to use diatomaceous earth on your entire lawn, using a large spray bottle will allow you to easily spread it.
It’s easiest to pour the 4 tablespoons (59 ml) into a jug of water, seal the lid on tightly, and then shake the container to get the powder to dissolve.
If you’re treating 1 or 2 plants, you might use a small spray bottle. If you’re treating a larger area, such as your entire flower bed or garden, you’d want to use a garden pump sprayer.
If you’re applying it to leaves, remember to spray the bottom of the leaves as well.
You can also use a garden duster or flour sifter. Sometimes you can even buy bags of diatomaceous earth that come with a duster built in. Find products specifically for spreading diatomaceous earth powder at your local garden store or online.
Applying the powder around the base of your garden or right at the soil level will help prevent crawling insects from eating away at your plants.
