I use these guys at the start of flowering until done: "The
Trichogramma spp., as parasitoids, work by laying eggs in the eggs of many Lepidopteran spp (moths and butterflies). The adult wasps can lay up to 300 eggs each, parasitizing an equivalent number of soon-to-be destructive caterpillars, loopers and/or worms.The wasps’ larvae hatch from the eggs, attack the moths’ eggs’ embryos from within (endoparasitism). Instead of pests hatching out, more mini-wasps emerge instead.The lifespan of these parasitoids is roughly 7 days in their immature stages, then up to 10 days as adults." Do the perimeter out away too. Makes for a lot less work and stress but you still need to look because a few do make it. A bug zapper at night attracts night flying moths ZAAAP!! ZZZZZZ!!! what a beautiful sound.
https://greenmethods.com/trichogramma/