At Lower Cadworthy Farm in the Plym Valley, we are monitoring moth populations using a Skinner Trap.
The mercury vapour bulb is very bright, which attracts moths. The moths are able to move down the sloped transparent panels into the trap, but are unable to escape. It works almost like a one-way valve. The moths hide in the crevices in the egg boxes and are then extracted and identified in the morning, when they are less active. As the weather warms up, we are catching more moths and a greater variety of species.
Left to right: hebrew character, great prominent and brindled beauty
Any moths we find particularly interesting or captivating will be posted on this blog, so watch this space. You can build your own Skinner Trap with instructions downloadable online.