National Pesticide Applicator Certification Questions and Answers Graded A

National Pesticide Applicator Certification Questions and Answers Graded A Using barriers to prevent pests from getting into an area is an example of which types of pest management method? Mechanical control Lowering the humidity of stored grains and other food products to reduce damage from mold is an example of which type of pest management method? Physical/environmental modification Sealing cracks and crevices and small openings in buildings is an example of what type of mechanical control method? Exclusion Which federal agency is responsible for registering or licensing pesticide products for us in the US? US environmental protection agency Which federal law governs the establishment of pesticide tolerances for food and feed products? Federal food, drug and cosmetic Act (FFDCA) Which federal law requires that all pesticides meet new safety requirements? Food Quality Protection Act (FQPA) Experimental use permits required under Section 5 of FIFRA can be used when conducting experimental field tests on new pesticides or new uses of pesticides on: 10 or more acres of land or 1 or more acres of water. True or false: Both civil and criminal penalties can be assessed for FIFRA violations. True Under the federal Endangered Species Protection Program, what must be on pesticide products that might adversely affect an endangered species: A label statement advising applicators to consult a county bulletin to determine if they must take any precautionary measures when using the products. What is needed to apply a pesticide legally when pest problem arises for which a food or feed commodity is not on the registered pesticide label or a tolerance has not yet been established? An emergency exemption Which section under FIFRA exempts from registration pesticides considered to pose minimal risk? Section 18 The active ingredient in Lorsban 75WG is listed as chlorpyrifos: 0,0-diethyl 0-(3,5,6-trichloro 2-pyridinyl) phosphorothioate. What does the term "chlorpyrifos" represent? The common name. What is he purpose of the signal word? To give the user an indication of the relative acute toxicity of the product to humans and animals. The route of entry statement on a label "Extremely hazardous by skin- rapidly absorbed through the skin" would most likely appear with which signal word? DANGER The statement "do not breathe vapors or spray mist" is an example of: A specific action statement. Where are the directions for mixing and loading a pesticide usually found under? The directions for use Who is responsible for developing. MSDSs on specific chemicals and providing them on request? The product manufacturer What does the name "Sevin 5G" indicate on a pesticide label? A granular pesticide with 5% active ingredients. Which is the pesticide formulation process by which solid particles are dispersed in a liquid? Suspension Which liquid pesticide formulation consists of a small amount of active ingredient (often 1% or less per unit volume) dissolved in an organic solvent? Ready-to-use low-concentrate solutions (RTU) Which liquid pesticide formulation may approach 100% active ingredient? Ultra-low volume (ULV) What is a disadvantage of both emulsifiable concentrate (EC) and ultra-low volume (ULV) formulations? Solvents can cause rubber or plastic hoses, gaskets, and pump parts and surfaces to deteriorate. Which dry/solid formulation consists of particles that are the same weight and shape? Pellets Which dry/solid formulation is mixed with water and reduces the risk of inhalation exposure during mixing and loading? Water-dispersable granules (WDG) or dry flowables (DF) What is an advantage of microencapsulated materials? Delayed or slow release of the active ingredient prolongs its effectiveness. Which type of adjuvant functions as wetting agents and spreaders (ie, they physically alter the surface tension of spray droplets)? Surfactants Which type of adjuvant increases the viscosity of spray mixtures? Thickeners If a pesticide label states that you must wear gloves based on guidelines in Chemical Resistance Category "D", which materials provide the best protection from the pesticide? Barrier laminate or butyl rubber Which parts of the body are most likely to be exposed to pesticides? Hands and forearms According to the Worker Protection Standard, what must the pesticide handler have access to if the label requires goggles for eye protection? An eyewash dispenser According to the EPA criteria, what type of respirator must you wear when applying liquid pesticide products from Toxicity Class I? Use a NIOSH-approved respirator with an organic vapor (OV) cartridge or canister with any N, R, P, or 100 series prefilter. What is the purpose of the fit check when using a respirator? To make sure you have a tight-fitting seal with no leakages each time you use the respirator. The capacity of a pesticide to cause short-term (acute) or long-term (chronic) injury is referred to as its what? Toxicity Which signal word is associated with Hazard Class I and chemicals that have severe corrosive properties but do not necessarily have very low oral LD50 values? DANGER What is the purpose of routine or emergency cholinesterase monitoring? To enable a physician to recognize the occurrence of excessive exposure to organophosphate and carbamate inseticides. When should a blood test for baseline cholinesterase be done? Baseline testing should be done during the time of year when pesticides are not being used or at least 30 days from the most recent exposure. What is the first thing you should do to help a victim of inhalation exposure? Get the victim to fresh air. Which property of a pesticide would make it more likely to move with water in surface runoff? High solubility Under what soil conditions are pesticides more likely to leach through soil? A sandy soil, low in organic matter, where groundwater is shallow. What is the recommended best management practice for preventing contamination of surface or groundwater by pesticides? Use terrace and conservation tillage practices. What two things should pesticide applicators be most aware of to avoid spray drift? Droplet size and wind direction and speed. What two things should pesticide applicators be most aware of to avoid vapor drift? Temperature and pesticide volatility. What is the backbone of any emergency response plan? Having a pesticide inventory readily available. True or false: to prevent damage to pesticide labels, you may use transparent tape or a coating of lacquer or polyurethane to protect them. True What is the first thing you should do if you notice a damaged pesticide container? Put on appropriate personal protective equipment. What is the first step a business should take to develop a sound pesticide security program? Risk assessment What should you consider when determining when to apply pesticides? The life cycle of the plant or animal. What do the directions for use on a pesticide label indicate? The various crops or areas on which the pesticide may be legally used. What is it called when two or more pesticides are mixed together and form a putty or paste, separate into layers, or look like cottage cheese? Physical incompatibility What is the usual order for tank mixing pesticides? Fill tank one-fifth to one-half full with carrier, add compatibility agent (if needed), add suspension products, add solution products, add surfactants (if needed), add emulsion products. Which type of pesticide application procedure involves the uniform application of a pesticide to an entire area or field? Broadcast application Which type of pesticide application would you use to control cockroaches inside a building? Crack and crevice application True or false: An enclosed cab always provides enough protection from pesticide exposure to allow applicators to use less PPE than recommended in the label? False You are applying a pesticide to a triangular area that has a base of 60 feet and a height of 30 feet. What is the area? 900 square feet You are applying a pesticide to a circular area with a 20 foot diameter. What is the area? 314 square feet You have calibrated your equipment to spray 50 gallons per acre. You need to spray one acre. The label calls for three pounds of formulation per 100 gallons of water. How much formulation should you add to the tank in order to make 50 gallons of finished spray? 1.5 pounds According to FIFRA, what is the minimum standard for direct supervision of a pesticide application by uncertified individuals? The application is done by a component person acting the under the instruction and control of a certified applicator who is available if and when needed. Under which set of circumstances would the certified applicator be required to be physically present at the application site? If the state law or label requires it. Which would be an appropriate way to describe a relatively low-toxicity pesticide product to the customer? Use with caution Breeding or selecting plants and animals with characteristics for resistance to pests is an example of what type of pest management method? Genetic control o Using a plow to destroy weeds is an example of which type of mechanical control method? Cultivation What term describes the pest population density that causes losses equal to the cost of control measures? Economy injury lecel What federal law requires employers to provide agricultural workers and pesticide handlers with protections against possible harm from pesticides? Worker Protection Standard (WPS) What are the two main classifications of pesticides under FIFRA? Unclassified-use and restricted-use. What is a tolerance, as set by the EPA? The maximum amount of pesticide residue that may legally remain on or in a commodity at the time of the harvest or slaughter. Which section under FIFRA could be used to allow the use of an unregistered pesticide to control an "emergency" pest problem? Section 18 The name "VIP No Pest 75 WP" on a pesticide label indicates what? The brand name and 75% active ingredients, formulated as a wettable powder. Which signal word appears on a label with a skull and crossbones picture. DANGER- POISON "This product is highly toxic to bees" is an example of which type of precautionary statement? Environmental hazard How much active ingredient is there in a 20lb bag of Atrazine 90DF? 18 pounds What type of pesticide formulation consists of liquid dispersed as droplets in another liquid and may require agitation? Emulsion Which liquid pesticide formulation contains solid particles that do not dissolve in either water or oil and may contribute to abrasive wear of nozzles and pumps? Flowables (F)/Liquids (L) Which dry/solid formulation requires constant agitation and may be abrasive to pumps and nozzles and cause them to wear quickly? Wettable powders (WP) Which type of dry/solid pesticide formulation is always applied dry and can easily drift to non-target sites? Dusts What type of formulation covers either a liquid or dry pesticide particles with plastic? Microencapsulates Which type of adjuvant increases the adhesion of solid particles to target surfaces? Stickers Which equation reflects the relationship between pesticide safety concerns? Hazard= toxicity x exposure Which signal word is associated with Hazard Class II (ie, small to medium dose could cause death, illness, or skin, eye, or respiratory damage) and must have the Spanish "Aviso" on the label? WARNING What should be done if cholinesterase levels fall significantly below baseline? Remove the pesticide handler from pesticide exposure until such a time as the cholinesterase level builds back up again to normal levels. What would be the first objective if dermal exposure to a pesticide has occured? Rinse the pesticide off to prevent absorption. What type of PPE should you wear during an application if large amounts of a pesticide could be deposited on your clothing over an extended period of time? A chemical-resistant suit made of rubber or plastic. What is the appropriate way to wear gloves and footwear for a job in which you will be working with your arms raised some of the time and lowered some of the time? Wear gloves with a cuff closed lightly outside the sleeve and wear your pant legs outside your boots. What should you do with clothing made if cotton or polyester that has been heavily contaminated with pesticides labeled with the signal word: DANGER-POISON, DANGER, or WARNING? Discard such items in a hazardous waste collection site. Which process would help prevent groundwater or surface water contamination? Select pesticides that tightly absorb to soil and are not persistent. What should be done with cancelled pesticides that can no longer legally be used? Treat as hazardous waste and dispose of accordingly. What type of pesticide application procedure would you use to apply a herbicide between the rows of crops? Band application You are applying pesticide to a rectangular area that is 50' x 20'. What is the area in square feet? 1000 square feet You determined from a calibration test that your boom sprayer delivers 8 gallons of water over a 0.25 acre test area. You need to apply a pesticide to a 10-acre field. How much spray mixture is needed for the 10 acre application area? 320 gallons From your calibration test, you determine that your backpack sprayer delivers .25 gallon of water to cover a 250 sq ft test area. The label recommends applying pesticide at a rate of 6 ounces of product per gallon. How many ounces of product are needed to cover a 1000 sq ft area? 6 ounces