Does the spray used by mosquito control programs kill good insects and birds?
When applied as directed by the usage label that comes with the insecticides, adverse effects on population of non-target organisms, like mammals, birds, and fish are usually absent or very minor. However, some insects (for example, honeybees) could be killed by mosquito sprays. Fortunately, mosquito adulticiding is normally done during the time of the when bees are resting in their hives where they are less likely to be killed by spraying. Also, when planning a mosquito spraying operation, efforts are made to avoid spraying near areas know to contain beehives.