Texas Farm Commodity/Structural Fumigation Flashcards
(130 cards)
1
Q
Fogging and fumigation are the same thing and give the same results.
A
False
2
Q
During a fumigation, each gas molecule moves seperately.
A
True
3
Q
Gas molecules can move both between and within fibers or molecules of wood or other materials.
A
True
4
Q
Fumigation affects our lives by…
A
Ridding the soil of organisms that could attack seeds, protecting grain supplies, protecting flour mills and other processing plants, (all of the above)
5
Q
Fumigants are the only pesticides that can effectively penetrate through thick wood to kill hidden insect infestations.
A
True
6
Q
Fumigants kill insects, but cannot hurt humans.
A
False
7
Q
Fumigation would be a good way to prevent a later infestation.
A
False
8
Q
Disadvantages of fumigants include…
A
Lack of residual properties, potential damage to copper by one fumigant, potential damage to seed germination by one fumigant, (all of the above)
9
Q
Possible alternatives to fumigation include…
A
Extreme heat, IPM, Extreme Cold, (all of the above)
10
Q
Fumigation might be used to control…
A
Drywood termites, formosan termites, wood destroying beetles such as old house borer, (all of the above)
11
Q
Fumigation might also be used in homes to control…
A
Clothes moths, rodents, cockroaches, (all of the above)
12
Q
Structural fumigation is not limited to homes and could include…
A
Museums, airplanes, some type of vehicles, (all of the above)
13
Q
Structural fumigation often depends on covering something with tarps.
A
True
14
Q
Treatment of stored grain is a commodity fumigation. However, treatment of the grain at a processing plant is a type of structural fumigation.
A
False
15
Q
In-transit fumigation of railcars is uncommon since their loads are usually treated at the receiving point.
A
False
16
Q
Fumigation of food plants requires…
A
A license for commodity fumigation, knowledge of FDA laws, a thorough study of the label, (all of the above)
17
Q
Soil fumigation is a specialized treatment classified as a commodity fumigation.
A
False
18
Q
Gas concentration is totally dependent on the dosage.
A
False
19
Q
The accumulated hours that a concentration can be held are the key to success.
A
True
20
Q
The time when all gas molecules are evenly distributed in space is called…
A
Equilibrium
21
Q
The molecular weight of a gas is…
A
Important to understanding the movement of gases, suggests which gases will dissipate the fastest, can be found in the manufacturers’ literature, (all of the above)
22
Q
Most fumigant gases are lighter than air and can be used for blimps.
A
False
23
Q
Cold temperatures will…
A
Cause gas molecules to move slower and take longer to reach equilibrium, cause a buildup of gas molecules on or near a cold surface, cause insects to “breath” at a slower rate, (all of the above)
24
Q
Gas detectors monitor the total gas in an enclosure, including sorbed gas.
A
False
25
All gas that is adsorbed becomes desorbed quickly during aeration.
False
26
As with adsorption and absorption, chemisorption can be reversed for the most part with sufficient aeration.
False
27
Sulfuryl fluoride is not as reactive as methyl bromide and should be used if rug padding or other materials might reach to produce an off odor.
True
28
Phosphine is sold in the United States under many trade names by a number of companies.
True
29
After aeration, phosphine tablets often have a small amount of unreacted aluminum phosphide remaining.
True
30
Caron dioxide is not a gas and therefore is safer to use than other fumigants.
False
31
Fumigation safety must be studied since fumigants can...
Kill fumigators, damage products or nearby materials, cause fire of explosion, produce off flavors or illegal residues, (all of the above)
32
The label is the single most important guide to safety.
True
33
Cotton gloves should be worn when handling phosphine products but not methyl bromide.
True
34
Weather can affect both the safety and the success of a fumigation.
True
35
Before starting a fumigation, the fumigator must first notify the...
Police and Fire Department
36
Aeration should be planned for safety before the fumigation is started.
True
37
Aeration time can be estimated and the purchase of expensive testing equipment will not be needed.
False
38
Expensive testing equipment is only required if many jobs are done per year.
False
39
Symptoms of alcohol poisoning are similar to some of the symptoms of fumigant poisoning.
True
40
If the fumigation label requires the fumigator to wear respiratory protection, a number of legal requirements, including a written program, must be met.
True
41
The employee should not work wearing a gas mask in a dangerous atmosphere until...
A doctor has given the employee a medical evaluation to determine if they can wear a gas mask, the employee has been fit tested by a qualified person, the employee has been trained in proper use and care of the mask, (all of the above)
42
The gas mask has only limited use in fumigation at the present time.
True
43
Protective equipment is not needed if the fumigator is only going to run it and open a window.
False
44
All respiratory equipment must be cleaned and check both before and after use.
True
45
SCBA tanks can be refilled at a gasoline service station.
False
46
The length of time that a SCBA can be used will vary with the exertion of the operator.
True
47
Respirators shall be selected on the basis of hazards to which the worker is exposed.
True
48
SCBA units are very expensive and are required only if the fumigator is working inside a fumigated building.
False
49
An experienced fumigator can accurately guess the fumigant concentration level without checking.
False
50
The halide leak detector can locate leaks of sulfuryl fluoride.
False
51
The same Fumiscope could give concentration readings of methyl bromide or sulfuryl fluoride.
True
52
Draeger and similar detector tubes can give both high and low readings of phosphine.
True
53
The Interscan is the primary instrument used to "clear" a building in Texas.
True
54
If an Interscan is not available, the fumigator can merely add 2 hours to the aeration time.
False
55
Phosphine levels can be checked with...
Detector tubes and pump such as the Draeger, the Gas-Tech unit, the Micro-max (any of the above)
56
Methyl bromide aeration can be monitored with...
Detector tubes
57
Drywood termite infestations can be identified when the inspector sees...
Wings or winged forms of drywood termites, soldiers of drywood termites, droppings of drywood termites, wood damaged by drywood termites, (all of the above)
58
Any small pellet falling out of a roof joist would be drywood termite pellets.
False
59
Subterranean termite swarmers will have two heavy veins at the front of the wings and drywood termites will have three or more.
True
60
Formosan termite swarmer wings can be distinguished by...
Small hairs on the surface of the wing.
61
A soldier termite with a straight-sided head and a pronotum that is almost the same size as the head would be...
A drywood termite.
62
Wood damage without mud and fecal matter glued to the surface would have to be drywood termite damage.
False
63
Infestations of wood boring beetles cause considerable damage throughout Texas.
False
64
Identification of wood destroying beetle damage depends on...
The type of wood attacked, the size of the hole made, and the shape of the hole.
65
If wood destroying insects are found in a house, the only proper treatment is fumigation.
False
66
If a house has many wings, it still is easy to figure the total volume by figuring each wing separately and then adding up all of the units.
True
67
The area to be fumigated in the average house is only the living space.
False
68
The most commonly used structural fumigants are...
Methyl bromide and sulfuryl fluoride
68
The most commonly used commodity fumigants are...
Methyl bromide and phosphine
68
It is important to kill the eggs of drywood termites during a fumigation.
False
68
For safety reasons, chloropicrin should always be used with methyl bromide during commodity fumigation.
False
68
Aeration of methyl bromide is complete in homes when detection tubes show less than 5 ppm concentration.
False
69
Methyl bromide, if spilled on shoes, gloves, or clothing and not immediately removed, can burn the skin.
True
69
Measuring the average height is an easy way to avoid separate measurements for the attic.
True
70
Using the Fumiguides can help the fumigator use less gas and actually save money.
True
71
Most fumigators use the same dosage of fumigant, so there is no point of using the Fumiguides.
False
72
The Fumiguides are only as accurate as the facts entered. Condition of tarps and other factors must be entered honestly.
True
73
The Optifume is an electronic device that performs all the functions of both Fumiguide B and Fumiguide Y.
True
74
The duties of the client during a structural fumigation include...
Paying the bill, removing items that could be harmed, agreeing that certain plants could be harmed, (all of the above)
75
The job graph should show...
The size and shape of the structure, steepness and condition of the roof, name and address of the client, any unusual conditions, (all of the above)
76
A treatment might need to be postponed if...
Rains have made the roof slick, excessive moisture causes condensation problems, the certified fumigator is not available, the temperature of the infested area is below 40 degrees, (any of the above)
77
The fumigation truck needs to be placarded because of the fumigant on board.
True
78
If the customer was assigned the job of removing materials that could be damaged, the fumigator is relieved of any responsibility to check further.
False
79
Handling the fumigant is the most dangerous part of the job and results in the most injuries.
False
80
The only way to get tarps on the roof is the carry them on your back while climbing a ladder.
False
81
Clamps can be spaced 2 feet apart most of the time.
False
82
Sand snakes are poisonous.
False
83
Since you are working outside with the cylinder of sulfuryl fluoride, no protective equipment is needed.
False
84
Insects attacking whole kernel grain and completing their development inside kernels are classified as:
Primary
85
To provide the least favorable condition for insect development, grain should be stored with a moisture content of:
12 percent or less
86
Avicides are not specific and:
May be toxic to a number of different species.
87
Birds are not protected by:
Federal law, state law, local ordinance, (all of the above)
88
The three commensal rodents may be separated from our native rodents by:
Their tails
89
Anticoagulants are poisons which:
Slow the clotting of blood.
90
Selection of bait for rat control is:
Not important because rats are omnivorous, not influenced by the species of rats present, not related to selection of appropriate rodenticide (NONE of the above)
91
It is important to know if an insect can fly.
True
92
You should never apply a protectant insecticide to grain that will be heat dried.
True
93
The volume of most buildings with flat roofs can be calculated by multiplying the length times the width times the height.
True
94
Ounces per 1000 cu. ft. would be twice as much as grams per cubic meter.
False
95
Milligrams per liter would be virtually the same amount as ounces per 1000 cu. ft.
True
96
The ppm is always 10,000 times more than the percent by volume.
True
97
The area of a circle is calculated with the formula...
3.14 x the square of the radius.
98
The concentration of phosphine can be doubled to shorten the exposure time in half.
False
99
The phrase LD99 refers to the concentration and time required to kill 99 percent of a test population.
True
100
A knowledge of the metric system is important if the fumigator wants to read scientific studies.
True
101
Trucks and containers can be fumigated in-transit on railroad flat cars as long as they are aerated before traveling on the highway.
True
102
Rail yards are dangerous places to work. Safety procedures may include...
Activating signal lights to show that men are working on a particular car, using rail clamp signals to avoid having the car picked up while you are working, always having two people on every fumigation, (all of the above)
103
If a boxcar has holes in the wooden floor, an effective fumigation will be difficult to achieve.
False
104
Sealing the doors with tape provides an adequate seal for in-transit fumigation.
False
105
Polyethylene tarps can be used to cover the doorways and they can be held up with...
Spray adhesive
106
The packages of fumigant can be tossed into the car just before it is sealed.
False
107
Hopper cars are good fumigation chambers.
False
108
The fumigant is completely spent at the time of arrival and can be tossed into a dumpster.
False
109
Semitrailers are metal and hold gas well most of the time.
False
110
Truck trailers have such a small volume of space that fans are not needed for methyl bromide.
False
111
Phosphine may not be effective with a 3-day fumigation.
True
112
When 100 percent control is needed, it may be necessary to tarp the trailer.
True
113
The tarp can always be sealed to asphalt or hard dirt surfaces well enough to give control.
False
114
Tarp fumigations of commodities can fail because...
Phosphine might not kill all insects in only 3 days (if that time was used), the wrong fumigant could have been used, the gas stratified due to lack of fans, (any of the above)
115
Techniques in placing tarps are important and include...
Achieving a tight seal to the floor, choosing an area that will permit tight sealing to the floor, folding rather than rolling the corners on inside treatments, folding excess tarp on the top so that a good seal can be made at the bottom, (all of the above)
116
Tarping and fumigating only a few stacks in a room where other infestations exist will probably permit re-infestation.
True
117
If the humidity is very low, phosphine may not be effective.
True
118
If methyl bromide is used, the tarp should fit tight on the top and the gas should be shot at the bottom.
False
119
Tarp fumigations can be done in occupied warehouses without worry.
False
120
Shipping containers often have vents in the four corners that can be missed by the fumigator.
True
121
Shipping containers containing fumigant that will be loaded on board a ship must meet strict requirements.
True
122
If the hatch doors are water tight, they are also air tight.
False
123
Record keeping will require, among other things...
The name of the fumigant gas and amount, identification number of container treated, date and time treated, (all of the above)
124
If methyl bromide is used to fumigate a shipping container, the container must be aerated before it can be shipped.
True
125
Methyl bromide should always be shot in at the top of a container and, unless a heat exchanger is used, the cargo should be protected with a plastic sheet or a shooting pan.
True
