I85PREP
⌘ K
CO Pesticide Applicator study materials
CO Pesticide Applicator study resources

CO Pesticide Applicator practice questions

One question at a time. Build your CO Pesticide Applicator understanding.

First 50 of 200 questions. Each one lists the choices, the correct answer, and an explanation. The checker at the top of this page saves progress in this browser when it is available.

Continue in the practice tool above to load more questions, 50 at a time.

Question 1Pesticide Laws and Regulations

Under FIFRA, which agency registers pesticides before they may be sold in the United States?

  1. The pesticide regulatory agency of each state
  2. The U.S. Environmental Protection Agency Correct answer.
  3. The U.S. Food and Drug Administration
  4. The U.S. Department of Agriculture

Explanation

FIFRA gives EPA the authority to register pesticides for sale and use in the United States and to classify products for restricted use. States may add their own registration requirements and restrictions, but they do not grant the initial federal registration.

Question 2Pesticide Laws and Regulations

Which statement best describes the legal standing of a pesticide label under FIFRA?

  1. It is a set of suggestions the applicator may modify on site
  2. It is enforceable only for restricted use products
  3. It is enforceable law; inconsistent use is a violation Correct answer.
  4. It becomes advisory once the applicator is certified

Explanation

FIFRA makes it unlawful to use a pesticide in a manner inconsistent with its labeling, and that duty applies to every registered product, not only restricted use ones. Certification demonstrates competence; it does not relax label directions.

Question 3Pesticide Laws and Regulations

EPA may classify a pesticide as restricted use when the product:

  1. may cause acute toxicity or harmful environmental effects without added controls Correct answer.
  2. is sold only in containers larger than one gallon
  3. has been registered for more than ten years
  4. is priced above a threshold set by the state

Explanation

FIFRA allows EPA to restrict a pesticide to certified applicators when it poses an unreasonable risk of acute injury to applicators or other people, or to the environment, without additional controls. Unrestricted sale would not adequately protect against that risk.

Question 4Pesticide Laws and Regulations

Who may legally buy and apply a restricted use pesticide to produce an agricultural commodity on land that person rents?

  1. A certified private applicator Correct answer.
  2. Any licensed pesticide dealer
  3. Any person at least 18 years old who signs a waiver at the dealership
  4. The landowner only, regardless of certification

Explanation

Restricted use pesticides may be sold only to certified applicators or to persons working under their direct supervision. A private applicator certification covers restricted use on land the applicator owns or rents, or land owned or rented by the employer, for producing an agricultural commodity.

Question 5Pesticide Laws and Regulations

A technician is paid by a lawn care company to apply a restricted use insecticide to customers' lawns. What credential does the technician need?

  1. A private applicator certification
  2. A restricted use pesticide dealer license
  3. An experimental use permit
  4. A commercial applicator certification Correct answer.

Explanation

Applying a restricted use pesticide for compensation on property the applicator does not own or rent is commercial application and requires commercial certification in the appropriate category. Private certification is limited to agricultural production on the applicator's own land or the employer's land.

Question 6Pesticide Laws and Regulations

Which agency administers the Colorado Pesticide Act and issues pesticide applicator certifications in Colorado?

  1. Colorado State University Extension
  2. Colorado Department of Agriculture Correct answer.
  3. EPA Region 8
  4. Colorado Department of Public Health and Environment

Explanation

The Colorado Pesticide Act is administered by the Colorado Department of Agriculture through the Commissioner of Agriculture, who adopts rules, certifies applicators, licenses dealers, and enforces the law. Other agencies have related health or environmental roles but do not certify applicators.

Question 7Pesticide Laws and Regulations

Under federal recordkeeping rules, how long must a certified commercial applicator retain records of restricted use pesticide applications?

  1. Six months
  2. 30 days
  3. At least two years Correct answer.
  4. One year

Explanation

Certified applicators who apply restricted use pesticides must keep records of those applications for at least two years and make them available to state or federal officials on request. The record must be completed within the time frame the rule specifies after each application.

Question 8Pesticide Laws and Regulations

In Colorado, a company that sells restricted use pesticides to growers must:

  1. hold a state pesticide dealer license Correct answer.
  2. sell only to other licensed dealers
  3. report each sale to EPA within 24 hours
  4. employ a certified private applicator

Explanation

Colorado requires businesses that distribute or sell restricted use pesticides to be licensed as pesticide dealers and to sell only to certified applicators or persons working under their direct supervision. The license is issued through the state pesticide program.

Question 9Pesticide Laws and Regulations

Before a manufacturer may sell a new pesticide product in Colorado, the manufacturer must:

  1. have the product tested by Colorado State University Extension
  2. register the product with the Colorado Department of Agriculture Correct answer.
  3. post a performance bond with the state treasurer
  4. obtain a Section 18 emergency exemption

Explanation

Colorado requires pesticide products distributed or sold in the state to be registered with the state pesticide program in addition to federal EPA registration. State registration is generally renewed annually and supports state oversight of products sold in Colorado.

Question 10Pesticide Laws and Regulations

A Colorado rule places tighter limits on a pesticide use than the federal label does. What must a Colorado applicator do?

  1. Meet the stricter state requirement Correct answer.
  2. Follow only the federal label, because FIFRA preempts every state restriction on pesticide use
  3. Follow only the state rule, because federal labeling law stops at the state line
  4. Choose either requirement, since both are legally valid

Explanation

FIFRA sets a national floor, and states may impose additional or stricter restrictions on pesticide sale and use within their borders. When a state rule is stricter than the label, the applicator must satisfy the stricter rule as well as the label.

Question 11Pesticide Laws and Regulations

A Colorado crop has a pest that a federally registered fungicide could control, but that crop use is not on the federal label. Which FIFRA mechanism lets the state add the use for growers in Colorado?

  1. An experimental use permit under Section 5
  2. A crisis exemption issued by the state chemist
  3. A special local need registration under Section 24(c) Correct answer.
  4. A supplemental distributor registration

Explanation

Section 24(c) allows a state to register an additional use of a federally registered pesticide to meet a special local need, supported by a showing that the use is needed locally. The resulting state labeling must be followed like any other label.

Question 12Pesticide Laws and Regulations

No pesticide is registered for a newly arrived invasive pest that threatens Colorado crops. What can EPA issue to permit a limited emergency use?

  1. An emergency exemption under Section 18 Correct answer.
  2. A special local need label under Section 24(c)
  3. A conditional registration for general use
  4. A supplemental distributor label

Explanation

Section 18 of FIFRA lets EPA authorize an emergency exemption for an unregistered use when an emergency pest situation exists and no registered product can control it. The exemption is limited in time and geography and carries specific use conditions.

Question 13Pesticide Laws and Regulations

A company wants to test an unregistered pesticide on small field plots to gather efficacy data before seeking registration. What authorization does the work require?

  1. A private applicator certification
  2. A Section 18 emergency exemption
  3. A pesticide dealer license
  4. An experimental use permit Correct answer.

Explanation

Testing an unregistered pesticide outdoors generally requires an experimental use permit from EPA, which sets conditions and acreage limits for the trial. The permit does not authorize commercial sales or general use of the product.

Question 14Pesticide Laws and Regulations

A lettuce grower applies a pesticide that is registered for lettuce, but at harvest the residues exceed the EPA tolerance. What is the legal status of that crop?

  1. It is adulterated and may not be sold as food Correct answer.
  2. It may be sold if the cartons are marked as treated
  3. It may be sold if the buyer signs a waiver
  4. It may be sold within Colorado but not across state lines

Explanation

A food is adulterated if a pesticide residue is present above the established tolerance or for a pesticide that has no tolerance for that crop. Selling or distributing such a crop is unlawful regardless of how it is labeled or whether the buyer consents.

Question 15Pesticide Laws and Regulations

A label requires a 12-hour restricted entry interval. Can the applicator shorten it?

  1. No; it may only be extended Correct answer.
  2. Yes, with the employer's written consent
  3. Yes, if the application is made after dark
  4. Yes, if every worker wears the required PPE

Explanation

The restricted entry interval on the label is a legal minimum that no one may reduce; it may be extended when conditions call for more protection. Entry before the interval ends is allowed only under the narrow early-entry exceptions with the required protections.

Question 16Pesticide Laws and Regulations

Before applying an outdoor pesticide in a Colorado county that contains habitat for a federally listed species, the certified applicator should:

  1. apply only after sunset
  2. check the EPA county bulletin and follow its restrictions Correct answer.
  3. wait for a county permit before spraying
  4. reduce the labeled rate by half

Explanation

EPA's Bulletins Live! Two provide geographically specific endangered species restrictions that are part of the label, and the applicable bulletin can change from month to month. The applicator must check the bulletin for the county of use and comply with any limits it lists.

Question 17Pesticide Laws and Regulations

A label requires chemical-resistant gloves and a respirator for a mixing job. Which statement is correct?

  1. The PPE listed on the label is a legal requirement Correct answer.
  2. The PPE is required only if the product is a restricted use pesticide
  3. The PPE may be waived when the weather is hot
  4. The PPE is optional for certified applicators

Explanation

Label-specified personal protective equipment is part of the labeling, so failing to wear it is a use inconsistent with the label. The duty applies to all registered products and is not relaxed by certification or by hot weather.

Question 18Pesticide Laws and Regulations

A certified commercial applicator is hired to treat a site in a category the applicator is not certified for. What should the applicator do?

  1. Proceed, because certification covers all categories
  2. Notify the state within 24 hours after the application
  3. Apply at a reduced rate to lower the risk
  4. Become certified in that category before doing the work Correct answer.

Explanation

Certification is issued by category, and applying pesticides in a category you are not certified for is a violation even when you hold another category. The applicator must qualify in the new category first, and the business must maintain the qualified supervisor coverage the state requires.

Question 19Pesticide Laws and Regulations

Under FIFRA, the term "use" of a pesticide includes which activities?

  1. Only the moments when product leaves the container and reaches the site
  2. Only the tasks that require respiratory protection
  3. Only work performed for compensation
  4. Application, mixing, storage, transport, and disposal Correct answer.

Explanation

FIFRA defines use broadly to cover application plus handling, mixing, loading, storage, transport, and disposal of the product. That is why label directions on storage and container disposal are legally enforceable.

Question 20Pesticide Laws and Regulations

When is a tank mix of two pesticide products legal?

  1. When neither label prohibits the mix and all label directions are followed Correct answer.
  2. Only when a pesticide dealer recommends the combination
  3. Whenever both products are registered by EPA
  4. Only when the total rate is below the labeled rate

Explanation

A tank mix is a use of each product, so each product's label must allow the combination, and the applicator must follow the directions and precautions of both labels. If either label prohibits mixing, the combination is not legal.

Question 21Pesticide Laws and Regulations

A pesticide product whose label lacks required information, such as the EPA registration number, is considered:

  1. adulterated
  2. misbranded Correct answer.
  3. restricted use
  4. an experimental product

Explanation

FIFRA treats a pesticide as misbranded if its label lacks required information or contains false or misleading statements. Selling or distributing a misbranded pesticide is unlawful.

Question 22Pesticide Laws and Regulations

The Colorado Commissioner of Agriculture finds that an applicator repeatedly violated the Pesticide Act. Which response is authorized?

  1. Suspend or revoke the certification and assess civil penalties Correct answer.
  2. Bill the applicator only for the state's laboratory costs
  3. Only mail a warning letter, because the state lacks penalty authority
  4. Refer the case to the county sheriff, since the state has no enforcement authority

Explanation

The Commissioner may suspend or revoke a certification and impose civil penalties for violations of the Colorado Pesticide Act and its rules, in addition to any other legal action. Enforcement authority rests with the state and is not limited to local law enforcement.

Question 23Pesticide Laws and Regulations

A noncertified employee applies a restricted use pesticide while a certified applicator provides the required supervision. Who is legally responsible for the application?

  1. The dealer that sold the product to the business
  2. The employee alone, because the employee made the application
  3. The certified applicator who provided the supervision Correct answer.
  4. No one, because the application was properly supervised

Explanation

A certified applicator who supervises a noncertified applicator is responsible for the application and must ensure the person is competent and follows the label. Responsibility does not shift to the product seller and does not disappear because supervision was provided.

Question 24Pesticide Laws and Regulations

Before a dealer sells a restricted use pesticide to a customer, the dealer must:

  1. report the sale to EPA on the day it is made
  2. collect a signed statement from any adult who will use the product
  3. photocopy the buyer's driver's license for state files
  4. verify that the buyer holds a valid certification for the purchase Correct answer.

Explanation

Restricted use pesticides may be sold only to certified applicators or to persons who will use them under a certified applicator's direct supervision, so dealers must check the buyer's certification. Dealers also keep their own records of restricted use sales.

Question 25Pesticide Laws and Regulations

An applicator mixes a pesticide at twice the labeled rate because the labeled rate did not control the pest. Under FIFRA, this application is:

  1. acceptable, because a stronger mix helps manage resistant pests
  2. acceptable, if the crop is not sold for food
  3. a violation of FIFRA Correct answer.
  4. acceptable, if the higher rate is noted in the application record

Explanation

Applying a pesticide at a rate above the labeled maximum is a use inconsistent with the labeling and is unlawful, even if the applicator records it. Continued control failure should be reported to the manufacturer or to extension staff rather than solved with off-label rates.

Question 26Pesticide Laws and Regulations

A certified applicator wants to control an insect that is not listed on the label of an insecticide registered for the crop being treated, and the label does not prohibit use against other insects. Under FIFRA, how should the applicator proceed?

  1. Apply only after obtaining a supplemental state registration covering the new pest.
  2. Apply at the labeled crop rate, because the crop site is on the label and the pest is not excluded. Correct answer.
  3. Do not apply, because treating any pest not named on the label makes the use illegal.
  4. Apply at a reduced rate until the product is shown to control the pest.

Explanation

FIFRA allows a pesticide to be used against a pest not listed on the labeling when the pesticide is applied to a site that is on the label, the label does not prohibit that use, and all other label directions are followed. This type of use does not require a new registration, but the applicator still must obey labeled rates, precautions, and restrictions.

Question 27Pesticide Labeling and Safety Data Sheets

Which signal word and symbol must appear on the label of a pesticide that falls into the most acutely toxic category (Category I) for oral, dermal, or inhalation exposure?

  1. WARNING with a skull and crossbones and the word POISON
  2. DANGER-POISON with a skull and crossbones Correct answer.
  3. CAUTION with an exclamation point and the word POISON
  4. CAUTION with the word POISON printed in red

Explanation

Category I products, the highest acute toxicity category, must carry the signal word DANGER together with the word POISON and a skull and crossbones. WARNING is used for Category II products and CAUTION for Categories III and IV.

Question 28Pesticide Labeling and Safety Data Sheets

Which statement is required on every pesticide label, regardless of signal word or toxicity category?

  1. Wear a respirator when mixing or loading
  2. Keep out of reach of children Correct answer.
  3. Do not apply this product near surface water
  4. Do not store this product below 32 degrees F

Explanation

The child hazard warning "Keep out of reach of children" is required on every pesticide label, though its exact placement depends on the signal word. The other statements are product-specific and appear only when the label or use pattern requires them.

Question 29Pesticide Labeling and Safety Data Sheets

The EPA registration number printed on a pesticide label identifies which of the following?

  1. The signal word category assigned to the product
  2. The production lot number assigned at the factory
  3. The expiration date of the container's contents
  4. The registrant and the product registration Correct answer.

Explanation

The EPA registration number identifies the company holding the registration and the specific registered product, allowing the product to be traced to its approved labeling. Lot numbers, dates, and signal words are separate items of information on the label.

Question 30Pesticide Labeling and Safety Data Sheets

In a Safety Data Sheet, first-aid measures are found in which section?

  1. Section 4 Correct answer.
  2. Section 2
  3. Section 7
  4. Section 5

Explanation

Section 4 of a Safety Data Sheet covers first-aid measures, including the symptoms to expect and the actions to take after inhalation, skin contact, eye contact, or ingestion. The other sections listed cover different types of information.

Question 31Pesticide Labeling and Safety Data Sheets

Where must the statement "Restricted Use Pesticide" appear on a product label?

  1. At the top of the front panel Correct answer.
  2. Only on the Safety Data Sheet
  3. On the back panel next to the storage directions
  4. Only in the Directions for Use section

Explanation

EPA requires the restricted-use statement at the top of the front panel so it is seen before any other label information, and it is accompanied by the reason for the restriction. Repeating the restriction elsewhere does not satisfy the required placement.

Question 32Pesticide Labeling and Safety Data Sheets

The Directions for Use section of a pesticide label specifies which of the following?

  1. The registration status in neighboring states
  2. The pests, sites, rates, and timing allowed Correct answer.
  3. The suggested retail price of the product
  4. The chemical structure of the active ingredient

Explanation

The Directions for Use state the pests, sites, application rates, timing, and methods that are permitted, and following them is a legal requirement under FIFRA. Price, chemical structure, and out-of-state registration status are not elements of this section.

Question 33Pesticide Labeling and Safety Data Sheets

Which SDS section gives the hazard classification and label elements such as the signal word and hazard statements?

  1. Section 2 Correct answer.
  2. Section 3
  3. Section 1
  4. Section 7

Explanation

Section 2, Hazard Identification, contains the hazard classification and the label elements, including the signal word, hazard statements, and precautionary statements. Sections 1, 3, and 7 cover identification, composition, and handling and storage respectively.

Question 34Pesticide Labeling and Safety Data Sheets

Which practice is consistent with typical pesticide label storage and disposal statements?

  1. Burning empty containers at the edge of the field
  2. Storing in the original labeled container Correct answer.
  3. Rinsing containers into a floor drain in the mix area
  4. Storing product in an unlabeled beverage bottle

Explanation

Labels direct users to keep the product in its original labeled container and store it away from water, food, and feed so contamination cannot occur. Burning containers, rinsing into drains, and transferring product to food or beverage containers are prohibited or unsafe practices.

Question 35Pesticide Labeling and Safety Data Sheets

A label shows the signal word DANGER but does not show the word POISON or a skull and crossbones. What does this indicate?

  1. It falls in Category II for moderate eye irritation
  2. It is classified as a restricted-use pesticide
  3. It causes severe skin corrosion or eye damage Correct answer.
  4. It is practically nontoxic by every exposure route

Explanation

The word POISON and the skull and crossbones are added only when a product is Category I for acute oral, dermal, or inhalation toxicity. DANGER used alone signals that the Category I hazard is severe skin corrosion or eye damage.

Question 36Pesticide Labeling and Safety Data Sheets

A label states a 14-day preharvest interval for tomatoes. Which action is permitted?

  1. Harvesting the tomatoes 14 days after the last application Correct answer.
  2. Applying 7 days before harvest at half the labeled rate
  3. Feeding culled tomatoes to livestock 5 days after application
  4. Harvesting 10 days after application for processing only

Explanation

The preharvest interval is the minimum number of days between the last application and harvest, so harvesting at or after 14 days complies. Reducing the rate, shortening the interval, or diverting the crop to processing or feed does not remove the requirement.

Question 37Pesticide Labeling and Safety Data Sheets

A label lists a 12-hour restricted-entry interval. Which statement is correct?

  1. The REI ends as soon as the spray deposit is visibly dry
  2. The REI applies only to the person who made the application and to handlers
  3. Entry is allowed before 12 hours only under a label exception with PPE Correct answer.
  4. Workers may enter at any time if they wear a long-sleeved shirt and gloves

Explanation

Entry during a restricted-entry interval is generally prohibited; exceptions exist only where the label or the Worker Protection Standard provides them and the required PPE is worn. The interval is a fixed time and does not end simply because deposits have dried.

Question 38Pesticide Labeling and Safety Data Sheets

A Section 24(c) special local need registration does which of the following?

  1. Adds a state-specific use to the label Correct answer.
  2. Exempts the user from the restricted-entry interval
  3. Replaces the federal label with an international label
  4. Allows use of a cancelled pesticide indefinitely

Explanation

A Section 24(c) registration lets a state add a use that is needed locally, and the resulting supplemental label applies only in that state for the stated period. It does not cancel or replace federal requirements.

Question 39Pesticide Labeling and Safety Data Sheets

A pesticide label includes chemigation directions. Which component is typically required by those directions?

  1. A backflow prevention device or check valve Correct answer.
  2. Application only when wind speed exceeds 10 mph
  3. A dedicated airblast sprayer for the application
  4. A minimum of 30 days between applications

Explanation

Chemigation directions typically require a functional check valve, vacuum relief valve, or other backflow prevention device so pesticide cannot siphon into the water supply. They also address injection timing, flushing, and calibration.

Question 40Pesticide Labeling and Safety Data Sheets

A mixer needs to know the engineering controls and personal protective equipment recommended for handling a concentrate. Which SDS section is most useful?

  1. Section 3
  2. Section 8 Correct answer.
  3. Section 13
  4. Section 9

Explanation

Section 8, Exposure Controls/Personal Protection, lists engineering controls, exposure limits, and the PPE recommended for handling the product. It is the SDS section that supports the PPE statements on the label.

Question 41Pesticide Labeling and Safety Data Sheets

The mode-of-action group number printed on a pesticide label is most useful for which purpose?

  1. Estimating the preharvest interval for the crop
  2. Determining the signal word for the product
  3. Calculating the application rate per acre
  4. Rotating sites of action to manage resistance Correct answer.

Explanation

Group numbers classify products by site of action so applicators can rotate among different modes of action and slow the development of resistance. The number does not determine signal word, rate, or interval.

Question 42Pesticide Labeling and Safety Data Sheets

A label states "Do not tank mix with any product containing chlorpyrifos." What is the correct interpretation?

  1. The restriction applies only at full label rates for both products
  2. The restriction applies only to aerial applications
  3. Tank mixing is allowed if the chlorpyrifos product is added first
  4. Combining the two products in one tank is prohibited Correct answer.

Explanation

A statement prohibiting tank mixing with a named active ingredient means the two products cannot be combined in the same tank under the labeled use. Order of addition, application rate, or application method does not remove the prohibition.

Question 43Pesticide Labeling and Safety Data Sheets

The label and the Safety Data Sheet disagree about the required glove type. Which document governs the legal use of the product?

  1. The SDS, because it is updated more often
  2. The pesticide label Correct answer.
  3. Whichever document was printed most recently
  4. The distributor's product bulletin

Explanation

The label is the legal document that governs how a pesticide may be used, and it controls when it conflicts with other materials. The SDS supplies hazard and safety information but does not authorize use.

Question 44Pesticide Labeling and Safety Data Sheets

Which SDS section describes containment and cleanup procedures for a spill?

  1. Section 6 Correct answer.
  2. Section 14
  3. Section 11
  4. Section 4

Explanation

Section 6, Accidental Release Measures, describes containment, cleanup, and protective measures for spills and releases. Section 4 covers first aid, Section 11 toxicology, and Section 14 transport.

Question 45Pesticide Labeling and Safety Data Sheets

Under FIFRA, which use of a registered pesticide is generally allowed without any special authorization?

  1. Applying it below the labeled rate on a listed site Correct answer.
  2. Applying it to a site that is not listed on the label
  3. Applying it at a rate above the labeled maximum rate
  4. Applying it to an unlisted crop adjacent to a listed crop

Explanation

FIFRA permits application at a rate lower than the labeled rate and, under conditions, against a pest not listed on the label. Applying to a site that is not listed, or exceeding the labeled maximum rate, is a use inconsistent with the labeling.

Question 46Pesticide Labeling and Safety Data Sheets

A label bearing the signal word CAUTION indicates that the product falls into which hazard category?

  1. Category I only
  2. Category III or IV Correct answer.
  3. Category II only
  4. Category I or II

Explanation

CAUTION is the signal word for Category III and IV products, the least severe hazard categories. Category I products carry DANGER, with POISON added when acute toxicity is the hazard, and Category II products carry WARNING.

Question 47Pesticide Labeling and Safety Data Sheets

A warehouse manager needs to know whether a pesticide can polymerize or release hazardous decomposition products when exposed to heat. Which SDS section addresses this?

  1. Section 10 Correct answer.
  2. Section 16
  3. Section 9
  4. Section 5

Explanation

Section 10, Stability and Reactivity, addresses chemical stability, reactivity, and hazardous decomposition products under conditions such as heat or fire. Fire-fighting, physical properties, and other information appear in different sections.

Question 48Pesticide Labeling and Safety Data Sheets

A label requires a 100-foot downwind buffer between the treated field edge and endangered species habitat for ground applications. Which statement is correct?

  1. The buffer applies only to aerial applications
  2. It is measured downwind from the treated edge to the habitat Correct answer.
  3. The buffer may be cut in half when a drift retardant is added to the tank
  4. The buffer is required only when wind exceeds 10 mph

Explanation

Buffer zones are measured downwind from the edge of the treated area to the protected habitat, and the stated distance must be maintained. A reduction is allowed only when the label itself provides for it.

Question 49Pesticide Labeling and Safety Data Sheets

Two products in a tank mix carry different maximum application rates and different PPE requirements. Which approach is correct?

  1. Follow the product with the higher maximum labeled rate
  2. Follow the more restrictive requirement for each parameter Correct answer.
  3. Follow the label of the product added to the tank first
  4. Average the two sets of requirements

Explanation

When two labels apply to the same tank mix, each requirement must be met, so the more restrictive rate, PPE, and interval controls. Averaging requirements or following only one product's label can produce an illegal application or inadequate protection.

Question 50Pesticide Labeling and Safety Data Sheets

Where in a Safety Data Sheet would you find CAS numbers and concentration ranges for hazardous ingredients?

  1. Section 12
  2. Section 2
  3. Section 3 Correct answer.
  4. Section 8

Explanation

Section 3, Composition/Information on Ingredients, lists chemical names, CAS numbers, and concentration ranges for hazardous ingredients. It is the section used to determine what the product contains.