pests Aphid control using pyrethrin

Peter S said:
This is my goto method for treating aphids, mainly needed for indoor plants that get infested. Outdoor plants seem to do ok on their own with natural predators keeping aphids in check.
Cool man thanks!

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Monterey sells a neem oil and pyrethrin combination. Its their fruit tree spray concentrate. 0.25% pyrethrin and 70% neem oil.
Would the addition of neem oil extend how long it is effective and reduce the amount of pyrethrin needed?
I use a product called EndAll by Safer brand. It's an organic pest control that contains pryethrins and neem oil and I believe is safe to use up to the day before harvest. Works pretty good for me and is always good to keep around just in case.