Dont forget to wash the leaves off and do it it least three times three days apart.
I`m indoor and still have ladybugs in flowering. Those bitches work whilst my ass is on the couch.
Maybe add 1/2 tsp per gallon of dawn dishsoap if you have it around. Keep control of temps.
They thrive in a hot dry climate.
I also daily water my ladybugs with a mister or just dump a little out on the floor weird I know but it evaps
and puts a little moisture in the air. I dont go crazy just enough so they can drink. I dont know if they get water any other way
I may be doing it for nothing, lol It makes me feel better about sweat shopping them in the flower room.