“Within 48 hours, we had no flies left in our house.” For something as tiny as a fly, gnat, or mosquito, an insect’s power to ruin a meal, a mood, or your whole summer is immense. But there’s hope yet ...

Gnats are attracted to the color yellow, making it the natural choice for adhesive cards used to trap the plant pests. Dima Berlin If you’ve noticed hordes of tiny insects flying around your home — ...