Aphideletes (Aphidoletes aphidimyza)
Aphidoletes are known to be incredible searchers, and will can even find individual aphids within the crop. They are better at reducing aphid populations in most circumstances, one reason being that they are more focused on aphids while ladybugs have a broader pest palette.
250 tray suited for areas up to 2,000-5,000 square feet
250 hanger suited for hanging on trees, areas up to 2,000-5,000 square feet
1,000 tray suited for areas up to 5,000-20,000 sq. feet