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Utilizing eggshells as natural bug control is inexpensive, and simple! In this post, not only will I reveal you how to use eggshells in your garden, I will likewise show you exactly how to prepare eggshells for garden use– consisting of tips for cleansing and drying eggshells, grinding them into powder, and keeping eggshells and powder for later use.

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Utilizing Eggshells As Organic Bug Control

The flea beetles have actually been even worse than ever in my garden this summertime, and the Japanese beetles are no enjoyable either. On top of that, the slugs have been turning my hostas into Swiss cheese (Ahhh, the delights of gardening). I require all the help I can get fighting these and other bugs in the garden organically.


There is a well known natural pesticide called diatomaceous earth, which is essentially the fossilized remains of creatures that are ground into a fine powder.

This works as a pesticide since it gets under the shells of beetles and imitates little bits of glass to cut them up and kill them. Snails and slugs will also pass away if they slip throughout it.

Well think what, ground eggshells can work the same way. I consume a great deal of eggs, so I have a lot of eggshells. Which suggests I can have the advantages of diatomaceous earth free of charge– Oh, and I’m everything about complimentary bug control!

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There are lots of uses for eggshells in the garden. So, whether you want to try using eggshells as natural insect control, or you prepare to use it in other ways, the steps for making natural eggshell powder are the exact same.

Listed below I will show you how to prepare eggshells for garden use, and offer you information of each of the steps. The actions include cleaning and drying eggshells, grinding them into powder, how to use your eggshells as organic bug control, and how to store remaining eggshells or eggshell powder for later usage in the garden.


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I get asked about the steps I utilize for cleaning up eggshells before crushing them all the time. However the reality is, I don’t truly fuss too much about this. If there is yolk or a lot of egg whites left in the shells, I will provide a quick rinse with water before drying them.

However if they’re already fairly tidy, I do not trouble taking the time to clean them. I have actually never had a problem with my eggshell powder stinking. So, my suggestions on this would be … if your eggshells are filthy, then definitely rinse them with water before drying and squashing them.


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You’ll certainly require to permit the eggshells to dry prior to squashing them, so don’t avoid this step. There are a couple of methods you could utilize for drying eggshells. Just as with cleaning up the eggshells, my method for drying them isn’t elegant here either. I just lay them out on a paper towel and leave them sitting on the counter for a few days.

If I have a great deal of eggshells to dry and I do not wish to clutter up my counters, then I toss them into a paper bag in the kitchen where they dry out in a few days. If you pick to toss them into a paper bag like I do, just make certain you do not stack the eggshells. Toss every one in there loosely, otherwise they will not dry as quickly, and they may even start to mold or stink (I have actually never ever had this problem with mine, however some individuals have).

I’ve likewise become aware of individuals putting their eggshells into the oven on low and drying them that method. However I’ve never attempted this technique, so I can’t speak to it.

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As soon as the eggshells are totally dry they will be very fragile and break quickly so you know they’re ready to be ground into powder. To grind eggshells into a powder, you can use a small food chopper or a coffee grinder.

You’ll most likely require to crush the eggshells up a bit before grinding them so you can fit more into the grinder at the same time. I just crush mine up in the paper bag or the paper towel fast prior to putting them into the grinder.

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In my experience, the best mill for eggshells is a coffee grinder. The coffee grinder does a fantastic job of grinding the eggshells into a powder. When I used my mini food chopper, I found that the shell pieces were bigger than the ones I crushed in the coffee grinder.

The food chopper still grinds the eggshells, but the result isn’t as great of a powder as you get with the coffee mill. So, if all you have is a mini food chopper, then you can try utilizing that. Otherwise, I recommend obtaining a low-cost coffee grinder to use as your eggshell mill.

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After the eggshells are ground into powder, you can take them out to the garden and utilize them right away. To use eggshells as organic pest control, sprinkle the eggshell powder straight onto the bug insect.

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Here I’m utilizing it on Japanese beetles. They truly do not like it, and will begin to squirm and move around. It won’t kill them right away, and often they will fly away, however they’ll die in time.

O12 / Pixabay

Take care though, eggshells will eliminate any kind of garden beetle– even helpful ones. It’s best to sprinkle the eggshell powder straight on the particular pests you are attempting to manage. I do not recommend spraying all of it over your garden, or you could wind up killing the great garden bugs by accident.

To use crushed eggshells for slugs, snails and flea beetle control, sprinkle the eggshell powder around the base of the plant. Eggshell powder sprinkled around plants will need to be reapplied after a heavy rain.

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Just be careful if you’re wearing dark trousers, and do not wipe your hands on your trousers as you are spreading out the eggshell powder (oops!). It can be a messy task.

Even better, prevent the mess of spreading eggshell or diatomaceous earth powder by using a bug mini duster– awesome!

ulleo / Pixabay


As long as they stay dry, you can save eggshells or eggshell powder for later use in the garden. Just keep your unused eggshell powder in a dry area.

I keep mine on a shelf in my garage, it doesn’t matter if it freezes in the winter. You could likewise keep them in a pantry or perhaps the refrigerator or freezer if you would rather.