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UPDATE 2025/ TX Pesticide Applicator General Standards Test Prep
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All licensed commercial and noncommercial applicators must be certified in each application category in which the practice.
a. True
b. False - CORRECT ANSWER- True
Which of the following is not among the TDA application categories? - CORRECT ANSWER- Wood preservation
Which of the following is not among the SPCS application categories? - CORRECT ANSWER- Seed treatment
Which of the following state agencies is not involved in pesticide regulation? - CORRECT ANSWER- Texas A&M AgriLife Extension Service
Under the Texas Pesticide Law, Pesticides used in this state must be registered with the TDA, even if they are already registered with the U.S. Environmental Protection Agency. T/F - CORRECT ANSWER- True
_____ _______ is your responsibility to inform nearby residents or adjacent landowners before you apply pesticides. - CORRECT ANSWER- Prior Notification
If unsupervised, you must have a license to legally work with restricted pesticides, but not to work with state-limited pesticides. - CORRECT ANSWER- False
To legally perform structural pest control, you must have a license regardless of the kinds of pesticides you use. - CORRECT ANSWER- True
Which is not an agency that shares responsibility for pesticide applicator training, certification and licensing? - CORRECT ANSWER- Texas A&M AgriLife Research
Which license must be obtained by a person who wants to perform pest control as an employee of a privately owned apartment building or hospital? - CORRECT ANSWER- A noncommercial license from the SPCS
To work for hire, using restricted or state-limited pesticides on another person's land, you must have? - CORRECT ANSWER- A commercial license from the TDA
In addition to state government, even county commissioners courts may set rules on the use of certain pesticides? - CORRECT ANSWER- True
What are two types of penalties defined by FIFRA for applicators who violate the law? - CORRECT ANSWER- Civil penalties when the violation is unintentional & criminal penalties when the law is knowingly
Does FIFRA provide for prison terms for violators of the law? - CORRECT ANSWER- Yes, up to 30 days for private applicators and up to 1 year for commercial applicators
What are regulations? - CORRECT ANSWER- Interpretations of the law that have the force of law
What is meant by the term "reentry interval"? - CORRECT ANSWER- The time right after pesticide application when unprotected workers may not enter the treated area
Warnings of pesticide application must be given in writing to workers according to the EPA. - CORRECT ANSWER- False
What is EPA's pesticide registration decision based on? - CORRECT ANSWER- EPA evaluation of test data provided by the manufacturer
If the EPA decides that a pesticide poses a risk to workers, what can the EPA do? - CORRECT ANSWER- Set reentry intervals to restrict workers from entering a treated area; Set restrictions on the frequency of application and rates; Cancel or suspend use the pesticide.
Which federal agency sets food tolerance for pesticides? - CORRECT ANSWER- EPA
Which federal agency enforces food tolerances for pesticides? - CORRECT ANSWER- FDA
What is the purpose of the tolerance program? - CORRECT ANSWER- The tolerance program is to ensure that U.S. consumers are not exposed to unsafe food pesticide residue levels
Which act is administered by EPA to manage all hazardous waste? - CORRECT ANSWER- Resource Conservation and Recovery Act of 1976
How can triple rinsed used pesticide containers be disposed of? - CORRECT ANSWER- In an EPA approved sanitary landfill
What kind of pesticide standards does FIFRA allow states to establish? - CORRECT ANSWER- Stricter than federal standards, but not more lenient
Which agency administers the Hazard Communication Standard? - CORRECT ANSWER- OSHA - Occupational Safety and Health Administration
Pesticide applicators generate during normal work operations. Are triple rinsed used pesticide containers considered "regulated waste" under the federal resource conservation and recovery act? - CORRECT ANSWER- NO
____ ____ is a one-time or short-term contact with pesticide - CORRECT ANSWER- Acute Exposure
____ ____ is a delayed poisonous effect from exposure to a substance - CORRECT ANSWER- Chronic Toxicity
____ ____ is long-term repeated contact with pesticides - CORRECT ANSWER- Chronic Exposure
The effects of which type of exposure---acute or chronic--- can be more easily detected and studied? - CORRECT ANSWER- Acute
A pesticide dose is the ____ of pesticide to which a surface, plant or animal is exposed - CORRECT ANSWER- Amount
Name 3 routes by which a pesticide can enter your body - CORRECT ANSWER- Dermal, Inhalation, and oral
Some pesticides are poisonous no matter how they enter the body - CORRECT ANSWER- True
Which pesticides solution is most likely absorbed through the skin? - CORRECT ANSWER- Oil-based
Which areas of the body absorb pesticides quickly? - CORRECT ANSWER- Eyes, ears, scalp, and genitals
Which two routes of entry are likely to be the most important to you? - CORRECT ANSWER- Dermal and Inhalation
Which factors affect the toxicity of a pesticide? - CORRECT ANSWER- Route of entry
Frequency and duration (rate) of exposure
Dose received
An example of a chronic effect is the drop in ___, an essential body enzyme, caused by organophosphates and carbonates. - CORRECT ANSWER- Cholinesterase
___ effects occur at the site of contact with a pesticide while ___ effects occur away from the point of contact. - CORRECT ANSWER- Local & Systemic
Skin rash, nausea, eye irritation and dizziness are examples ___ toxic effects. - CORRECT ANSWER- reversible
LD50 means "Lethal Dose Fifty". It refers to the amount of a chemical that kills ___ the animals exposed to it in a laboratory test. - CORRECT ANSWER- Half (50%)
True or False: The smaller the LD50 value, the less chemical required to be fatal, so the more poisonous the pesticide. - CORRECT ANSWER- True
The toxicity of a substance is its ability to cause injury, while ___ is the risk or chance that harm will come from using the pesticide. - CORRECT ANSWER- Hazard
Is a highly toxic material always very hazardous? - CORRECT ANSWER- No, if a highly toxic material is handled properly it could actually pose low risk or hazard.
True or False: Most deposits remain on surfaces for a very long time. - CORRECT ANSWER- False
What is a "deposit"? - CORRECT ANSWER- A pesticide that remains on a treated surface right after application.
True or False: Residues are found only on target crops and surfaces. - CORRECT ANSWER- False. Residues can be found on any surface where they are applied.
A ___ is the maximum amount of pesticide residue allowed on a harvested crop, set by the EPA. - CORRECT ANSWER- Tolerance
Can a harvested crop contain more than the set tolerance of a pesticide and still be legally sold? - CORRECT ANSWER- No, it cannot be sold legally
What margin of safety ("safety factor") does the EPA use to set tolerances? - CORRECT ANSWER- 100 times lower than the NOEL (No Observed Effect Level), which is the highest dose in a dose-response study that does not cause an adverse effect
that scientists can observe. RfD (Reference Dose) is at least 100 times lower than the NOEL.
True or False: Food may have no residues at all because the residues may have degraded or the crop may have been treated with a minimum dose of a pesticide.
- CORRECT ANSWER- True
True or False: Soil and plant surfaces may contain pesticide residue even when they are not directly sprayed with the pesticide. - CORRECT ANSWER- True
EPA sets two kinds of tolerances: ___ ___ tolerances for pesticides that indirectly contact food; and tolerances for pesticides applied directly to food. - CORRECT ANSWER- Negligible residue, Finite
"Pre-slaughter interval" or "pre-harvest interval" refers to the ___ ("least/most") number of days allowed between the last pesticide application and the slaughter or harvest day. - CORRECT ANSWER- Least
True or False: No pesticide may be bought, sold or used in the United States until it has federal registration for the product, the use and the label. - CORRECT ANSWER- True
True or False: Sometimes even small environmental changes can greatly reduce the chances of survival for fish and wildlife. - CORRECT ANSWER- True
What are the possible consequences of pesticide drift onto forage and pastureland or into drinking water? - CORRECT ANSWER- People, pets and livestock can be injured by pesticide exposure; Pasture grasses could be destroyed; Milk or meat could have illegal residues if cattle eat contaminated forage; Water may become too contaminated to drink.
True or False: Pesticide pollution can help a pest you are trying to to destroy by killing predators and parasites of the pest. - CORRECT ANSWER- True
An ___ is a geologic formation of permeable rock, sand or gravel that stores large amounts of water. - CORRECT ANSWER- Aquifer
Why are aquifers important? - CORRECT ANSWER- Because so many people use water from aquifers for drinking
What is the name given to the complex prey/predator cycle in which all animals (including humans) take part. - CORRECT ANSWER- Food Chain
The best protection against groundwater pollution is ___. - CORRECT ANSWER- Preventing Contamination
At what level is man in the food chain? - CORRECT ANSWER- The Top
An ___ pesticide is one that builds up in animal and plant tissues. - CORRECT ANSWER- Accumulative
A ___ pesticide is one that remains in the environment without breaking down. - CORRECT ANSWER- Persistent
True or False: Even though persistent pesticides remain in the environment, they do not always accumulate in animals or plants. - CORRECT ANSWER- True
An ___ ___ is a plant or animal that is near extinction throughout all or most of its range. - CORRECT ANSWER- Endangered Species
Name 4 processes that cause a pesticide to break down after application. - CORRECT ANSWER- Photodegradation; Microbial degradation; Chemical degradation
Pesticides that degrade ___ in the environment are the least hazardous. - CORRECT ANSWER- Quickly
Name two reasons why pesticide accidents occur. - CORRECT ANSWER- Lack of up-to date knowledge & Unsafe handling practices
If you or your partner feels sick on the job, should you leave the work undone or try to finish it? - CORRECT ANSWER- Do not try and finish the job. Get out of the area immediately and get help.
How should you prepare for an accidental spill of a pesticide? - CORRECT ANSWER- Have absorptive material available; have bleach or hydrated lime for decontamination; keep soap, detergent and water close at hand; have a change of clothes available
True or False: If a nozzle clogs up while you are spraying pesticides, the best way to clear it is to blow the nozzle out with your mouth. - CORRECT ANSWER- False
If the pesticide is not took toxic, is it OK to let children and pets play in the area while you are spraying there? - CORRECT ANSWER- Never let children or pets play in a treatment area during spraying.
True or False: When you are spraying near bee colonies, it is up to the owners alone to keep the bees out of your way or to remove the bees. - CORRECT ANSWER- False
How can you prevent accidents commonly caused by equipment? - CORRECT ANSWER- Choose the safest equipment for your pesticide application needs; Do not allow children or unauthorized people near pesticide equipment; Operate equipment correctly; Maintain equipment well
The length of time that should pass between treatment and returning to a treated area is called the ___ ___. - CORRECT ANSWER- Reentry interval
True or False: Regardless of the reentry interval stated on the label, you may reenter a treated site after sprays dry, dusts settle and vapors disperse. - CORRECT ANSWER- False
What is the most common cause of pesticide poisoning for applicators? - CORRECT ANSWER- Skin Contact
When should you wear elbow-length, chemical-resistant gloves? - CORRECT ANSWER- When handling any pesticide, except certain fumigants and relatively non-toxic products.
Why not use cotton or leather gloves when handling highly toxic pesticides? - CORRECT ANSWER- Cotton and leather absorb pesticide and holds it close to the skin
True or False: You must always wear a chemical-resistant suit when handling highly toxic pesticides. - CORRECT ANSWER- True
How often should you wash your contaminated overalls? - CORRECT ANSWER- Daily
Which type of hat is useful to protect your head and neck from highly toxic pesticides? - CORRECT ANSWER- Chemical resistant rain hat
certain wide-brimmed hats
Washable hard hat with no liner
What is the main drawback of cartridge respirators? - CORRECT ANSWER- Leakage around the face shield
True or False: Gas masks are used when the applicator will be exposed to toxic fumes in heavy concentrations or for long time periods. - CORRECT ANSWER- True
When should gas masks be used with an independent oxygen supply? - CORRECT ANSWER- When you are exposed to unknown vapors
When you reenter a fumigated area
Should you try to fit the respirator so that some air can leak in around your face? - CORRECT ANSWER- No
When should you replace the filter on your respirator? - CORRECT ANSWER- When it becomes dirty or breathing becomes difficult.
How often should you change the cartridges on your respirator? - CORRECT ANSWER- Every 8 hours
True or False: To safely clean and store a respirator: wash the face piece with detergent and warm water. Rinse. Wipe dry with clean cloth. Store in a tightly closed plastic bag. - CORRECT ANSWER- True
When handling highly toxic pesticides... - CORRECT ANSWER- You should always work in pairs
True or False: If you wash your face and hands first, it is all right to have a snack or a chew of tobacco while you are on the job. - CORRECT ANSWER- True
True or False: You may wear pesticide-soaked clothing again, without laundering, as soon as the clothing dries. - CORRECT ANSWER- False
Cholinesterase tests show wether you have been overexposed to ___ or ___ pesticides. - CORRECT ANSWER- carbamate, organophosphate
True or False: You should wash your gloved hands before removing the gloves. - CORRECT ANSWER- True
Natural Rubber protects against ___. - CORRECT ANSWER- Dry formulations
True or False: The symptoms of pesticide poisoning are very different than all from all other types of poisoning. - CORRECT ANSWER- False
True or False: A person exposed often to small amounts of toxic material over a long time usually shows the same poisoning symptoms as a person exposed suddenly to a large amount of toxic material. - CORRECT ANSWER- True
True or False: Because each chemical family can attack the body in a different way, the symptoms of pesticide poisoning are not all the same. - CORRECT ANSWER- True
