Flashcards in CH. 7 Pesticides and the Environment Deck (18)
(True or False) The airborne movement of a pesticide from its target area occurs only during application and it is clearly visible when it occurs.
Select the condition that could help reduce pesticide volatilization.
a. high air temperatures
b. low relative humidity
(True or False) Pesticide adsorption in greatest in coarse, sandy soils.
(True or False) Runoff is usually more likely from a water saturated soil than from an unsaturated soil.
(True or False) Pesticide degradation processes can be beneficial because they reduce the amount of pesticide residue in the environment.
The upper level of the water saturated zone in the soil is called the:
a. surface water
b. aquifer level
c. water table
(True or False)Pesticide properties have little, if any, effect on wether a chemical will reach ground water.
Pesticides can reach ground water through:
a. microbial activity
(True or False) Pesticide contaminated surface water can contaminate ground water.
To reduce the potential for ground water contamination :
a. rinse application equipment on sandy soil so the rinsate doesn't puddle
b. delay application of pesticides if a heavy rain is expected
c. store un-rinsed empty pesticide containers outside
Spray drift is the lease when which of the following conditions exist?
a. droplet size increases, wind speed increases
b. droplet size decreases, wind speed decreases
c. droplet size increases, wind speed decreases
Select the FALSE statement. To reduce the chances of bee poisoning from pesticide:
a. select dust formulations whenever possible
b. do not apply pesticides toxic to bee during bloom
c. reduce drift during application
Fish kills most commonly result from pollution of water by:
Drift problems can be reduced by:
a. spraying upwind of a sensitive area and leaving an untreated border
b. placing a spray boom as close to the target as possible
c. applying in very calm and stable air conditions
(True or False) Accidental or intentional environmental damage caused by a pesticide can result in financial losses to the responsible party.
(True or False)
Drift can be minimized if precautionary measures are taken (monitor weather, alter spray systems).
Movement of chemical into plants, animals, microorganisms, soil, etc... is called?