The mix instructions says 20-40 oz for Strawberry's, Parsley... That's 2x whats it calls for on Mint leaves. I will try the lower rate 1st the up it if needed.
my homey eradicated root aphids with a very similar mix as that as a drench. he used it with some frequency(dunno) for some time (not sure)and it never resurfaced in his garden ever again. i cant remember if it was a half teaspoon (2.5 mil) or a whole one (5mil) or less or more but....lol
it was oregano oil but im guesing theres is a list of essential oils that are both plant safe and are also a miticide, aphid killer, fungicide etc.
i hope it does what you need it to,