Ready-To-Use Pesticides (RTUs) are products that are

• A. Over-the-counter and premixed with all the correct amounts, so the user does not need to mix anything
• B. Required to be mixed with water before use
• C. Only suitable for greenhouse use
• D. Always liquids

Answer: (A)

Ready-To-Use products are formulated to be used as they come, without any mixing or measuring. They come premixed in their container and are ready to apply directly according to the label. That means you don’t dilute with water or blend with other ingredients—the product is prepared and packaged so you can use it right away. This is why the option describing them as over-the-counter and premixed, with no need to mix anything, is the best fit.

The idea that you must mix with water isn’t true for RTUs, which is why that choice doesn’t match. They aren’t restricted to greenhouse use; RTUs are used in many settings, indoors and outdoors. And while many RTUs are liquids, the defining feature isn’t their form but the fact that they’re ready to use without mixing.