Aphid Trap cards

Aphids are hella attracted to yellow, which is why you can by trap cards for them.

Thing is, they're stupidly (for the value) expensive in Australia for something you use and then throw away, so I made some reusable ones. Based on the "On-Guard Outdoor Protector" brand, and will fit in side their proprietary cages (will not be able to use clips at both ends as you can't fit a full size card on a standard bed, but the 2mm rigidity holds them in place)

Two versions, one with holes so it