Figure3-10. German cockroaches. (1-4), Nymphs; 5 and 8, Adults; 6, Adult female with
egg capsule; 7, Egg capsule)/
Figure 3-11. Cockroach trap.
f. Sticky boards may also be used in estimating populations. Made of stiff
heavy-duty paper and coated with an extremely strong adhesive, these traps are
available in a variety of sizes. They are placed in suspect roach harborage areas and
wiII trap roaches on the adhesive. These can be used as is or a bait can be placed in
the center to attract roaches. Sticky boards are also useful for trapping mice.
MD0170
3-18