These pictures you get if a grower gets enthusiast about predators, system thinking.
Predated aphids on clover below the table-tops
Natural hover fly early in the spring
Natural Feltiella early in the spring
And to be honest, it is unbelievable how predators populations develop. So early in the season (March in Norther Germany is still Cold): Aphidius, Feltiella, Hoverfly, next to lots of other insects. Beautiful to see.