This is the place to post questions and discussions on usage and style. The members of the Wordwizard Clubhouse will also often be able to help you to formulate that difficult letter.
We don't get mosquitos round here but where you do get them you will find the coils you mentioned along with every other type of anti-mosquito product.
I'm puzzled therefore I think.
tony h : Thanks a lot for your input.
I've never seen one like that. How well do they work?