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Neem oil is great. I use it all over the garden to excellent effect. The war with the aphids is long and attritional.
Can’t say if it goes off or not, I always use the whole batch I make up in one go.
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Neem oil is a godsend. We just make a batch and use it over 1-2 weeks, doesn't seem to go off. It completely saved our beans from blackfly infestation
Eejit
IrPOWERranger
@hugo7
This whole neem oil thing. Does the solution seriously go off?
Working out the minuscule quantities to fit into a 400ml spray bottle is a ballache enough, but now this is saying I need to mix it up fresh every time!?!?
https://greenerideal.com/guides/0814-how-to-make-your-own-neem-oil-pesticide/#:~:text=To%20make%20one%20litre%20of,stir%20in%20the%20neem%20oil.
What are peoples' experience with it for aphids? Does it go off?