What is the appropriate action to take if mud daubers are near a dwelling?

The most appropriate action to take when mud daubers are near a dwelling is to use microcap or wettable powder to deter them. This method effectively targets the wasps in a controlled manner and minimizes disruption to their nesting behavior. Microcap and wettable powder formulations can stick to the insects efficiently, providing a longer-lasting deterrent effect without the immediate and invasive actions associated with other methods.

Using determent approaches instead of active removal allows for a more environmentally sensitive strategy, reducing the risk of stress or aggressive behavior from the wasps. This option recognizes that while mud daubers can be a nuisance due to their nesting habits, they are generally not aggressive unless provoked.

In contrast, removing mud nests immediately could lead to the wasps simply rebuilding them without addressing the underlying issue. Applying direct insecticide can be more disruptive as it may provoke the wasps to defend their nests, potentially leading to stings. Ignoring them may not be advisable if their presence causes concern for homeowners, despite the fact that they are not typically harmful. Thus, using a suitable deterrent is the most balanced and effective solution.