 In most cases the ants collect and transport the honeydew secretions from the hemipterans back to the nest for consumption.Not all examples of ant trophobiotic interactions are mutualistic, with instances such as ants attracted to "Cacopsylla pyricola" feeding on both the honeydew and the "C. pyricola" individuals.This interaction has been recorded in Ancient Chinese writings and is noted as one of the oldest instances of biological pest control.