I wonder if it works for anything besides aphids?
LOL! I have foolishly planted single lobelia! Before I knew to clump transplant them!
That was a chore.
So everytime we throw a bunch of seeds in a tray and let them germinate and grow on as seedlings they benefit from crowding? Good to know! I do it all the time! Today I was transplanting my celosia with about 200 in a small tray! what a chore.