control tactic should be used to prevent a pest population
from increasing and causing economic loss?
a. Plant equilibrium
b. Aesthetic injury level
c. Economic threshold
d. Economic injury level
c. Economic threshold
,What is one suggestion to slow the development of
herbicide resistant weeds?
a. Soil compaction
b. Use of GIS systems
c. Herbicide rotation
d. Abiotic agents
c. Hericide rotation
,What is a concern with the overuse of insecticides in field
crop situations?
a. Negative effects on non-target arthropods
b. Large insect populations increase the local property
values
c. Non-taget pest density will not be affected
d. Crop growth utilizes available nutrients and therby
purifies the water for drinking
a. Negative effects on non-target arthropods
, Which of the following nozzel types presents the greatest
risk of spray drift?
a. Hollow-cone nozzle
b. Pre-orifice flat-fan nozzles
c. Turbo flooding nozzles
d. Air-induction nozzles
a. Hollow-cone nozzle