How long does it take for neem to become effective?

7 days ago

I'm curious how long to takes for neem to become effective against aphids.

I have what appears to be an aphid infestation and am first trying the neem on a couple of indoor plants - a pot of herbs and a serrano pepper. I mixed the neem according to instructions on the bottle and sprayed it for the first time, covering all leaves, and also the soil.

So far it seems to have had no effect. Looking at the plants this morning, I found aphids all over the leaves, and also a bunch of flying insects - which I think are another form of aphid? So I sprayed again, but observing the plants this evening, I see the situation is the same.

How many applications are usually needed to get results, or how many days does one need to wait after an application to see results?


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