Which of the following is NOT an action to prevent fungicide resistance?

Using the minimum label rate is not an effective action to prevent fungicide resistance. The label rate is the recommended dosage provided by the manufacturer based on extensive testing. Applying fungicides at lower than the recommended rate can lead to insufficient control of the target pathogens, allowing them to survive and potentially develop resistance to the active ingredients.

In contrast, practicing integrated pest management involves a holistic approach that includes various strategies to manage pests and diseases, which helps reduce dependency on any single chemical management tool, thereby minimizing the chances of resistance. Confirming the fungicide before use ensures that the correct product is applied to the problem at hand, thus maximizing its effectiveness and reducing the risk of resistance. Alternating fungicides with different mechanisms of action prevents pathogens from being consistently exposed to the same mode of action, significantly lowering the likelihood of resistance development. Each of these practices is aimed at maintaining the efficacy of fungicides over time.