A new updated version of the book, containing more than 400 images, drawings, charts and tables and several description sheets.
Plastic grille for pollen. A line of 9 holes with a moulded board at the base to help forager bees get in. The grille can be divided in two lengthwise to create 2 pollen traps. Dimensions: 4 mm hole diameter, 100 mm height, 395 mm length, 12 mm thickness.