Amazon has the $70 Gootop Bug Zapper on sale for just $36 when you apply an on-page 10% off coupon before checkout. It's rated for a coverage area of half an acre, and ...

You can try citronella candles or ultrasonic repellers, but a good old-fashioned bug zapper might still be the best way to keep tiny, unwanted guests from interrupting time spent on your patio.