4.
Rodent infestations can usually be traced to:
a. Unsanitary conditions.
b. Absence of chemical control programs.
c. Inadequate rodent-proofing.
d. Destruction caused by wars or natural disasters.
5.
Harborages within buildings are of three types: _____________________,
________________________________, and ________________________.
6.
If a disease is suspected in a rodent population, what must be done before
rodent extermination begins?
a. Complete rodent proofing of buildings.
b. Destruction of rodent nests and harborages.
c. Fumigation of burrows.
d. Ectoparasite control.
7.
Which of the following rodenticides is recommended for general use?
a. Zinc phosphide.
b. Anticoagulant, universal concentrate.
c. Aluminum phosphide.
d. Rodenticide, Bait, Anticoagulant, 0.005 percent Brodifacoum.
MD0172
3-18
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