Pictures of the artisanal manufacture of the traps which however requires a few tools, including an 80w soldering iron, a bottle piercing tool that makes holes with claws that hold the tubes of centrifuges with a diameter of 10.5 mm. All this for a cost of 0.4 cents per bottle-trap, plus an attractant to put in the bottles. Fearsome efficiency for the catches.
Jean Lecomte / Biosphoto
JPEG bitmap image
Image size: 2480x3189 pixels (8.3"x10.6" @300dpi)