When it comes to protecting crops via anti insect net, you may think that the size of the holes in that netting is the most important factor. According to new research, however, the color of red netting makes an even bigger difference in effectiveness.
Ordinarily, agricultural netting is either black or white, or sometimes blue or green. Although red netting generally isn't used, a 2015 study showed that when crops were irradiated with red light, pest insects known as onion thrips (Thrips tabaci) tended to stay away from the plants.