Treat the Source

摘要

They may be small but such flies present significant public health problems. Here are some hands-on tips for controlling these pests. There's an old joke that starts with: "Waiter, waiter, there's a fly in my I soup!" But small flies actually in yoursoup or anywhere else, for that matter, are no laughing matter. Especially in a restaurant, bar or a food kitchen in a health-care facility, the presence of small flies is a significant public health problem that must be solved.