What is a primary advantage of anticoagulant baits formulated into paraffin blocks?

The primary advantage of anticoagulant baits formulated into paraffin blocks is that they are particularly useful in dry locations. These paraffin blocks provide a moisture-resistant formulation that allows the bait to remain stable and effective even in environments with low humidity. This characteristic is essential because the bait's effectiveness hinges on its ability to stay intact and available for consumption over a longer period, which is often compromised in damp conditions that can lead to spoilage.

Although these baits can indeed be accepted by mice, the primary benefit emphasized here relates to the formulation's resistance to moisture, making them particularly advantageous for use in dry settings. This helps ensure that the bait remains accessible to the target pests for a longer duration, increasing the likelihood of successful control efforts.