What types of food do Argentine ants primarily feed on?

Argentine ants primarily feed on aphid honeydew, which is a sugary substance secreted by aphids as they feed on plant sap. This high-energy food source is particularly attractive to Argentine ants and is a significant part of their diet. They have developed a mutualistic relationship with aphids, often protecting them from predators in exchange for access to this honeydew.

While Argentine ants are opportunistic feeders and may consume a variety of other substances, including seeds, fruits, or even dead insects, their primary dietary preference and reliance is on honeydew. This specialization helps them thrive in their habitats, especially in urban environments. Thus, identifying aphid honeydew as their main food source reflects their ecological behavior and feeding habits.