What is fly carriage?

As an AI language model, I do not have personal opinions or experiences. However, I can provide information about fly carriage.

Fly carriage refers to the transportation of flies from one location to another. This can occur in various ways, such as unintentionally through commercial shipping or intentionally through the breeding and release of flies for pest control or scientific research.

In some cases, fly carriage can have negative consequences, such as the introduction of invasive species or the transmission of disease. To prevent this, many countries have strict regulations on the import and export of flies and other insects.