this post was submitted on 03 Jun 2026
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Gardening

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How often to re-apply Neem oil? (slrpnk.net)
submitted 1 day ago by Guenther_Amanita@slrpnk.net to c/gardening@lemmy.world
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I'm using Neem oil preventatively on everything. Only on my balcony, nothing gets into the environment.

In what intervals do I need to spray? Does it get washed away with every rainfall? What about sun exposure?

More often in lower concentrations?

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[–] Keilik@lemmy.world 1 points 1 day ago

I use neem oil for potato bugs mostly because I’ve literally watched them eat a tomatillo plant to stalks in under an hour. Everything else I’ve found bunch better solutions than neem honestly. For example, I found planting nasturtiums with my cucumbers actually completely got rid of my cucumber beetle problem since they repel them and attract predator insects.

So yea I wouldn’t use neem unless you have some pretty nasty pests and don’t have other options