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PESTICIDE LICENSE EXAM 2025 | ALL QUESTIONS
AND CORRECT ANSWERS | VERIFIED ANSWERS |
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If pesticide is spilled on the skin or clothing, the first reaction should be to
- remove contaminated clothing and put on clean clothing
- call a doctor immediately
- remove contaminated clothing and wash affected area with soap and water ---------CORRECT ANSWER-----------------3. remove contaminated clothing and wash affected area with soap and water. A person who has swallowed a pesticide must be made to vomit regardless of their condition or the pesticide in question. ---------CORRECT ANSWER-- ---------------False Under the Worker Protection Standard, what training requirements pertain to farm crew personnel who repair a sprayer that is broken down in a field?
- worker training
- handler training
- certified applicator training ---------CORRECT ANSWER----------------- 2.Handler training Gloves and boots worn when handling pesticides should be
- leather
- lined rubber 3.unlined rubber ---------CORRECT ANSWER-----------------3. unlined rubber
For convenience, all clean protective equipment and clothing should be kept with pesticides in the locked pesticide storage area ---------CORRECT ANSWER-----------------False Wash clothes lightly contaminated with pesticide separately from family laundry in hot water with laundry detergent ---------CORRECT ANSWER----- ------------True When filling a spray tank with water
- attach an anti-backflow valve to the hose 2.keeping the hose in the water of the spray tank
- using water sources with fluctuating pressure ---------CORRECT ANSWER-----------------1. attach an anti-backflow valve to the hose Application records must be kept for_____ years 1.one
- five 3.seven ---------CORRECT ANSWER-----------------3. seven The best way to dispose of a registered pesticide is to bury it in a safe place ---------CORRECT ANSWER-----------------False A quick and effective way to deal with any spill is to hose down the area with water. ---------CORRECT ANSWER-----------------False Pesticide should be stored
- only in the original containers
- in containers too heavy for children to handle
1.high air temperatures
- low relative humidity
- soil incorporation ---------CORRECT ANSWER-----------------3. soil incorporation Pesticide adsorption is greatest in coarse, Sandy soils ---------CORRECT ANSWER-----------------False Runoff is usually more likely from a water-saturated soil than from an unsaturated soil ---------CORRECT ANSWER-----------------True Pesticide degradation processes can be beneficial because they reduce the amount of pesticide residue in the environment ---------CORRECT ANSWER-----------------True The upper level of the water-saturated zone in the soil is called the___
- surface water
- aquifer level
- water table ---------CORRECT ANSWER-----------------3. water table The only purpose of federal and state pesticide laws is to protect the environment from hazardous pollutants ---------CORRECT ANSWER--------- --------false The EPA has the authority to stop the sale or use of any pesticide --------- CORRECT ANSWER-----------------True
A person purchasing a restricted use herbicide must be a certified applicator ---------CORRECT ANSWER-----------------True Restricted use pesticides can only be applied by a certified applicator ------- --CORRECT ANSWER-----------------False All pesticide products containing the same active ingredient are classified the same, either general use or restricted use, regardless of the formulation. ---------CORRECT ANSWER-----------------False The WSDA administers the pesticide licensing program in Washington ------ ---CORRECT ANSWER-----------------True Every pesticide distributed in Washington must be registered with the WSDA ---------CORRECT ANSWER-----------------True SLN registration allows WSDA to register additional application sites to a federal label ---------CORRECT ANSWER-----------------False If a licensed private applicator in Washington chooses to recertify by course credit, how many recertification credits do they need in five years??? --------
- CORRECT ANSWER-----------------20 credits
2.water-dispersible granules
- soluble powders ---------CORRECT ANSWER-----------------3. Soluble powders breathing dust is a potential hazard associated with the mixing of wettable powders and soluble powders ---------CORRECT ANSWER----------------- True which of the following pesticide formulations must be mixed with water before being used by the applicator?
- flowables
- granules
- dusts ---------CORRECT ANSWER-----------------1.Flowables When added to water, emusifiable concentrates form emulsions. --------- CORRECT ANSWER-----------------True Most bait formulations have 50% or more active ingredient. --------- CORRECT ANSWER-----------------False Extreme care must be exercised when placing baits to make them inaccessible to children, pets, and other non-target ingredients --------- CORRECT ANSWER-----------------True all pesticide manufacterors include all the necessary spray adjuvants, thus you do not need to add them when mixing a spray tank load. --------- CORRECT ANSWER-----------------False
Two or more pesticides that cannot be effectively mixed together are said to be what??? ---------CORRECT ANSWER-----------------incompatible when adding two or more pesticides into a spray tank, always add the liquid formulations first. ---------CORRECT ANSWER-----------------False all formulations of the same active ingredient carry the same signal word --- ------CORRECT ANSWER-----------------False the skull and crossbones symbol must appear on every pesticide label ------ ---CORRECT ANSWER-----------------False Which signal word(s) on a pesticide label would indicate that the product is highly toxic to humans 1.DANGER-POISON PELIGRO 2.WARNING, AVISO
- CAUTION ---------CORRECT ANSWER-----------------1. DANGER- POISON PELIGRO labels should be removed from pesticide containers and kept in a notebook so they remain clean and legible ---------CORRECT ANSWER----------------- False A certain active ingredient has a technical chemical name, and one excepted common name, but may be in products with several different trade/brand names ---------CORRECT ANSWER-----------------True
The REI for an agricultural No Pest application is
- As soon as spray is dried
- 4 hours
- 48 hours ---------CORRECT ANSWER-----------------3. 48 hours The hazard associated with a pesticide product depends entirely on the toxicity of the active ingredient ---------CORRECT ANSWER----------------- False The most common route of pesticide exposure leading to poisoning is inhalation ---------CORRECT ANSWER-----------------False Because of the protective nature of eye tissue, very little pesticide that contacts the eyes is actually absorbed ---------CORRECT ANSWER---------- -------False toxicity from small, repeated exposures to a pesticide over a period of time is called
- low toxicity 2.acute toxicity
- chronic toxicity ---------CORRECT ANSWER-----------------3. Chronic toxicity Which LD50 is representative of a moderately toxic pesticide?
- 640 mg/kg
- 5,800 mg/kg ---------CORRECT ANSWER-----------------1. 640 mg/kg
The potential adverse health effects of pesticides are studied on laboratory test animals. ---------CORRECT ANSWER-----------------True Which signal word(s) or symbol would indicate the product that is least toxic to an applicator?? ---------CORRECT ANSWER-----------------2. Applicators who regularly use organophosphate and carbamate insecticides are advised to have a pre-season blood test to establish their normal (baseline) level of 1.carcinogens 2.cholinesterase
- cholesterol ---------CORRECT ANSWER-----------------2. Cholinesterase a key to minimizing the hazard of pesticide use to the applicator is to avoid exposure ---------CORRECT ANSWER-----------------True Pesticide properties have little if any effect on whether a chemical will reach groundwater. ---------CORRECT ANSWER-----------------False Pesticides can reach groundwater through.
- microbial activity
- leaching
- absorption ---------CORRECT ANSWER-----------------2. Leaching Pesticide-contaminated surface water can contaminate groundwater --------- CORRECT ANSWER-----------------True
Empty pesticide application equipment does not need to be cleaned if the same material is to be applied within the next few days. ---------CORRECT ANSWER-----------------False Before storing spray equipment, it should be cleaned and filled with a detergent and water mixture ---------CORRECT ANSWER----------------- False Calibration of application equipment is necessary only with new equipment and only at the beginning of each season. ---------CORRECT ANSWER------ -----------False When calibrating a granular applicator, use the same material that is to be applied. ---------CORRECT ANSWER-----------------True The best sprayer to use for broadcasting an herbicide is
- an air blast sprayer
- a boomless sprayer (cluster of nozzles)
- a boom sprayer ---------CORRECT ANSWER-----------------3. a boom sprayer a boom is equipped with flat-fan nozzles and the nozzle pattern must overlap between the adjacent nozzles ---------CORRECT ANSWER----------- ------True the best way to make a calibration check is to actually operate the equipment over a known area ---------CORRECT ANSWER----------------- True
a farmer wants to calibrate a boom sprayer by the jar method. The nozzles on the boom are 20 inches apart. it takes 27 seconds to travel the 204-foot course. The average output per nozzle is 22 fluid ounces during a 27 second period. what is the application rate in gallons per acre?
- 0.1 oz.
- 7.7 oz
- 8.6 oz. ---------CORRECT ANSWER-----------------2. 7.7 oz one of the earliest uses of chemicals as pesticides was the burning of sulfur ---------CORRECT ANSWER-----------------True when the pest reaches___, pest management procedures need to be applied to prevent the pest from reaching the economically damaging populations. ---------CORRECT ANSWER-----------------economic threshold which of the following is a cultural control method
- pesticide application
- planting time
- releasing predators ---------CORRECT ANSWER-----------------2. planting time the first step in pest management program should be to identify the pest ---- -----CORRECT ANSWER-----------------True the use of temperature or humidity manipulation is a_____control method for insects ---------CORRECT ANSWER-----------------3.
The body of an adult has three regions: the head, thorax, and abdomen. --- ------CORRECT ANSWER-----------------True mites typically have
- eight legs
- four body parts
- chewing mouthparts ---------CORRECT ANSWER-----------------1. eight legs the four general types of mouthparts found on insects and insect-like pests include sponging, siphoning,____,and______ ---------CORRECT ANSWER- ----------------piercing-sucking and chewing the four life stages of an insect that undergo complete or complex metamorphosis are shown in the illustrations below. identity each by name a. b. c. d. list their development sequences. ---------CORRECT ANSWER----------------- a, egg b.adult c. pupa d. larva sequence a,d,c,b knowledge of the stages in a pest life cycle is important because
- all stages cause the same type and amount of damage
- stages vary in their susceptibility to control strategies
- all stages look alike ---------CORRECT ANSWER-----------------2. stages vary in their susceptibility
an aphid is an example of a
- defoliator
- structural pest
- plant sucking pest ---------CORRECT ANSWER-----------------3. plant sucking pest honeydew is a fungus that covers the leaves of aphid-infested plants --------
- CORRECT ANSWER-----------------False symptoms of plant damage caused by sucking pests can include wilt, dead areas,_____ and______ ---------CORRECT ANSWER-----------------stunting and curling the first step in pest control program is to learn what control tactics are available. ---------CORRECT ANSWER-----------------False it is not always economically justifiable to spray a crop. if the damage level or insect pest numbers are below the economic threshold, control measures generally are not warranted. ---------CORRECT ANSWER---------- -------True repeated use of the same compound for many years and applications will help to prevent the development of insecticide-resistant pest populations --- ------CORRECT ANSWER-----------------False those insects or insect-like pest that produce many generations per year and offspring per generation are more likely to develop resistance to an
In herbicides selection, two of the most important questions are what weed is to be controlled and what crop is being grown T or F ---------CORRECT ANSWER-----------------True contact herbicides ---------CORRECT ANSWER-----------------Do not control most established perennial weed species unless applied repeatedly perennial weeds usually recover following treatment by which type of herbicide? ---------CORRECT ANSWER-----------------Foliage-contact- nonselective To delay or avoid weed resistance problems, employ non chemical means of weed control whenever possible and avoid using the same herbicide or family of herbicides every year T or F ---------CORRECT ANSWER------------ -----True weeds resistant to an amino acid synthesis inhibitor will be resistant to lipid inhibitors T or F ---------CORRECT ANSWER-----------------False a feature of plant pathogens is that they can be spread from diseased plants to healthy plants T or F ---------CORRECT ANSWER-----------------True Most fungai reproduce forming? ---------CORRECT ANSWER----------------- Spores
Virus particles are large enough to be seen when magnified to two or three times their normal size. T or F ---------CORRECT ANSWER-----------------False Insect feeding is a method of virus spread. T or F ---------CORRECT ANSWER-----------------True Nematodes are small round worms. T or F ---------CORRECT ANSWER----- ------------True Plant disease symptoms are caused only by pathogenic organisms. T or F - --------CORRECT ANSWER-----------------False All plant diseases must be controlled when the first symptoms appear. T or F ---------CORRECT ANSWER-----------------False Disinfecting equipment before moving to another field can prevent the introduction of bacteria, fungi, and nematodes into a non-infected area. T or F ---------CORRECT ANSWER-----------------True Fungicide resistance may occur when one fungicide is used repeatedly to control a fungal pathogen. T or F ---------CORRECT ANSWER----------------- True
