Not wanting to put chemicals on the food I plan to ingest, I brought in bionatural, beneficial predators - ladybugs. That evening and the following morning I witnessed a decrease in the aphid population, as well as a decrease in the ladybug population. I have plenty of aphids to feed them, but they seem to be disappearing or dying. The plant under growth holds an abundance of dead predators, further exploration fails to reveal any young larva stage ladybugs. The aphids are back in full force.