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Figure 4. - Auger-hole pollen trap: (1)Trap
sides - Wood, 3-1/4 by 7 by 3/4 inch, two required. (2)Trap
front - Fir plywood, 8 by 4-5/8 by 3/8 inch, exterior grade.
(3)Trap back - Fir plywood, 8 by 7 by 3/8 inch, exterior
grade. (4)Trap cover - Fir plywood, 8 by 4-1/2 by 3/8
inch, exterior grade. (5)Grid - Hardware cloth, 5-mesh,
6-3/8 by 3-1/2 inches, formed as shown. (6)Pollen collecting
container cover - Hardware cloth, 7- or 8-mesh, 6-3/8 by 4-1/2
inches, formed as shown. (7)Pollen collecting container
bottom - Copper screen, 4 by 6-3/8 inches. A galvanized steel
sheet strip is soldered to one edge as shown to provide stiffness
and ease of removal. (8)Grid supports - Wood, 1-1/2 by
3/4 by 1/4 inch, four required. (9)Pollen collecting container
cover and bottom supports, Wood, 6-1/2 by 3/4 by 1/4 inch, two
required, and 3-1/4 by 3/4 by 1/4 inch, two required. (10)Entrance
and mounting tube - 1-1/8-inch diameter copper tubing 3/4-inch
long soldered to galvanized steel sheet 2 by 2 inches and nailed
over 1-inch auger hole in trap's back. |
