Pesticide Applicator Certification Practice - C3

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  • 1/111 Questions

    Pesticide persistence is influenced by:

    • Application rate
    • Temperature
    • Moisture conditions
    • All of the above
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About This Quiz


Hello! Do you have any knowledge about pesticides? If yes, then check out our well-researched 'TN Pesticide Practice Test Quiz' that is designed to check your understanding of the same. Pests are well-known for destroying crops, and therefore, it is important to control them using pesticide-based medicines and applicators. So, let's start the quiz and see how much knowledge you See morehave. You just need to pick the correct option for every question. Your final scores will be displayed at the end.

Pesticide Applicator Certification Practice - C3 - Quiz

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  • 2. 

    When does a private applicator become a commercial applicator?

    • When he/she exchanges services for another private applicator

    • When he/she sprays for another individual and charges a fee

    • When he/she sprays within a greenhouse

    • When their income exceeds $25,000

    Correct Answer
    A. When he/she sprays for another individual and charges a fee
    Explanation
    A private applicator becomes a commercial applicator when he/she sprays for another individual and charges a fee. This indicates that the private applicator is no longer providing services solely for themselves, but is now engaging in a business transaction by accepting payment for their services. This distinction is important because commercial applicators are subject to different regulations and licensing requirements compared to private applicators.

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  • 3. 

    In order to buy a restricted use pesticide in Tennessee, an individual must:

    • Be 16 years of age

    • Be certified by the Tennessee Department of Agriculture as a pesticide applicator

    • Working under the supervision of a certified applicator

    • Meet all the safety standards

    Correct Answer
    A. Be certified by the Tennessee Department of Agriculture as a pesticide applicator
    Explanation
    To buy a restricted use pesticide in Tennessee, an individual must be certified by the Tennessee Department of Agriculture as a pesticide applicator. This certification ensures that the person has undergone training and has the necessary knowledge and skills to handle and apply pesticides safely. It also ensures that they are aware of the potential risks and safety standards associated with pesticide use. Being certified helps in preventing misuse or mishandling of pesticides, protecting the environment, and ensuring the safety of individuals involved in pesticide application.

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  • 4. 

    The following applicator must always be certified in order to use a restricted-use pesticide:

    • Farmer

    • Greenhouse operator

    • Nurseryman

    • Pest control technician working for a chartered company

    Correct Answer
    A. Pest control technician working for a chartered company
    Explanation
    A pest control technician working for a chartered company must always be certified in order to use a restricted-use pesticide. This is because restricted-use pesticides are highly toxic and have the potential to cause harm to humans, animals, and the environment if not used properly. Certification ensures that the technician has the necessary knowledge and training to handle and apply these pesticides safely and effectively. It also helps to regulate and control the use of restricted-use pesticides, reducing the risk of misuse and potential harm.

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  • 5. 

    According to the Federal Environmental Pesticide Control Act (FEPCA), amended FIFRA, in order to use a restricted-use pesticide an applicator:

    • Must be certified in all cases

    • Must be certified or working under the direct supervision of a certified applicator

    • Does not have to be certified, but attend pesticide safety training

    • May always work under the supervision of a certified applicator

    Correct Answer
    A. Must be certified or working under the direct supervision of a certified applicator
    Explanation
    According to the Federal Environmental Pesticide Control Act (FEPCA), amended FIFRA, in order to use a restricted-use pesticide, an applicator must either be certified or work under the direct supervision of a certified applicator. This means that the applicator must have the necessary certification to handle restricted-use pesticides, or they can work under the direct supervision of someone who is certified. This ensures that the use of these pesticides is regulated and handled by individuals who have the knowledge and expertise to do so safely.

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  • 6. 

    Commercial applicators may become recertified by:

    • Paying $15.00 annually

    • Sending an application to TDA

    • Earning a certain number of recertification points during the designated period

    • Attend a recertification meeting during the last year of the recertification period

    Correct Answer
    A. Earning a certain number of recertification points during the designated period
    Explanation
    Commercial applicators can become recertified by earning a certain number of recertification points during the designated period. This means that they need to participate in approved activities or training programs that contribute to their knowledge and skills in the field. By accumulating the required number of points, they demonstrate their commitment to staying updated and competent in their profession. This ensures that commercial applicators are equipped with the necessary knowledge and expertise to safely and effectively carry out their responsibilities.

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  • 7. 

    Commercial applicators must keep records of:

    • General-use pesticides

    • Restricted-use pesticides

    • General and restricted-use pesticides

    • Pesticides with skull and cross bones

    Correct Answer
    A. General and restricted-use pesticides
    Explanation
    Commercial applicators are required to keep records of both general-use and restricted-use pesticides. General-use pesticides are commonly available and can be used by anyone, while restricted-use pesticides are more hazardous and can only be used by certified applicators. Keeping records of both types of pesticides ensures that commercial applicators are able to track and document the use of these chemicals, which is important for safety, compliance, and accountability purposes.

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  • 8. 

    To reduce the chance of invasion by carpenter ants, one should:

    • Keep wood mulch at least 1 foot away from the base of a structure

    • Keep wood mulch moist

    • Bank mulch around the base of plants

    • Use pine bark mulch

    Correct Answer
    A. Keep wood mulch at least 1 foot away from the base of a structure
    Explanation
    Keeping wood mulch at least 1 foot away from the base of a structure reduces the chance of invasion by carpenter ants. This is because carpenter ants are attracted to wood and by keeping the mulch away from the structure, it creates a barrier that makes it more difficult for the ants to access the building. This helps to prevent them from nesting in the structure and causing potential damage.

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  • 9. 

    Parasites and predators of pests are beneficial because they:

    • Indicate that pests are present

    • May reduce the need for pesticide applications for certain pests

    • Improve soil conditions

    • Are not affected by pesticide applications

    Correct Answer
    A. May reduce the need for pesticide applications for certain pests
    Explanation
    Parasites and predators of pests are beneficial because they can help reduce the need for pesticide applications for certain pests. These natural enemies can control pest populations by feeding on them, thus reducing their numbers. This can be particularly useful for managing pests in a more sustainable and environmentally friendly way, as it reduces the reliance on chemical pesticides. By utilizing these natural enemies, farmers and gardeners can effectively control pests without negatively impacting the environment or other beneficial organisms.

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  • 10. 

    When should a preemergent herbicide applied?

    • Just after a rain

    • A week or two before the target weed emerges

    • After weeds have emerged, but before they flower

    • When the target weed is first seen

    Correct Answer
    A. A week or two before the target weed emerges
    Explanation
    A preemergent herbicide should be applied a week or two before the target weed emerges. This timing allows the herbicide to form a barrier in the soil that prevents the weed seeds from germinating and emerging. Applying the herbicide just after a rain may wash it away before it can be effective. Applying it after weeds have emerged or when the target weed is first seen is too late, as the herbicide needs to be applied before the weed seeds have a chance to sprout.

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  • 11. 

    Perhaps the best control method for damage to turf by birds is:

    • Broadcasting a poison bird bait

    • Controlling the soil-inhabiting insects on which the birds are feeding

    • Placing a net over the turf

    • Mowing the turf as closely as possible

    Correct Answer
    A. Controlling the soil-inhabiting insects on which the birds are feeding
    Explanation
    Controlling the soil-inhabiting insects on which the birds are feeding is the best control method for damage to turf by birds because it addresses the root cause of the problem. By eliminating the insects that the birds are feeding on, their food source is removed, and they are less likely to cause damage to the turf. Broadcasting a poison bird bait may harm other wildlife and is not a targeted solution. Placing a net over the turf may be effective in the short term, but it is not a sustainable or practical long-term solution. Mowing the turf as closely as possible does not address the underlying issue and may not deter birds from causing damage.

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  • 12. 

    The best way to permanently reduce snake populations is to:

    • Apply repellents to the ground

    • Kill them every time they are encountered

    • Reduce their food source by removing and cleaning up rodent habitat

    • Capture and remove them

    Correct Answer
    A. Reduce their food source by removing and cleaning up rodent habitat
    Explanation
    Reducing snake populations can be effectively achieved by reducing their food source, which is primarily rodents. By removing and cleaning up rodent habitat, such as areas with food and shelter, the snake's main source of sustenance is eliminated. This not only decreases the attractiveness of an area for snakes but also disrupts their ability to survive and reproduce. Applying repellents to the ground or killing snakes when encountered may provide temporary relief but does not address the underlying issue of their food source. Capturing and removing snakes can be impractical and may not guarantee a permanent reduction in their population.

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  • 13. 

    To detect a whitefly infestation, one should:

    • Inspect the base of stems

    • Look on the underside of leaves

    • Take soil samples

    • Inspect flower heads with a magnifier

    Correct Answer
    A. Look on the underside of leaves
    Explanation
    To detect a whitefly infestation, one should look on the underside of leaves. Whiteflies are small, flying insects that typically feed on the undersides of leaves. By inspecting the underside of leaves, one can easily spot the presence of whiteflies, which are usually white or pale yellow in color. This is a common and effective method to detect whitefly infestations and take necessary measures to control them.

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  • 14. 

    To kill most protected species, one must:

    • First contact the Tennessee Wildlife Resources Agency

    • Contact the EPA

    • Be a licensed pest control operator

    • Be a resident of Tennessee

    Correct Answer
    A. First contact the Tennessee Wildlife Resources Agency
    Explanation
    To kill most protected species, it is necessary to first contact the Tennessee Wildlife Resources Agency. This suggests that the agency has specific regulations and guidelines in place for dealing with protected species, and they must be contacted to obtain the necessary permits or permissions before taking any action. This ensures that the killing of protected species is done in a controlled and regulated manner, preventing any harm to the environment or the species themselves.

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  • 15. 

    The are of a triangle is:

    • Twice the combined length of its sides

    • (base x height) divided by 2

    • (1/2 base + 1/2 height) x 2

    • Not often used in determining areas to be treated

    Correct Answer
    A. (base x height) divided by 2
    Explanation
    The formula for calculating the area of a triangle is (base x height) divided by 2. This formula is derived from the concept that the area of a triangle is equal to half the product of its base and height. Therefore, to find the area, we multiply the base and height together and then divide by 2. This formula is commonly used in determining the area of triangles in various mathematical and real-world applications.

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  • 16. 

    A large area to be treated can be divided into a square (30 ft on a side) and two rectangles (both 50 ft by 80 ft). What is the total area to be treated?

    • 8600 sq. ft.

    • 8900 sq. ft.

    • 86,000 sq. ft.

    • 1/2 acre

    Correct Answer
    A. 8900 sq. ft.
    Explanation
    The total area to be treated can be calculated by adding the areas of the square and the two rectangles. The area of the square is calculated by multiplying the length of one side (30 ft) by itself, which equals 900 sq. ft. The area of each rectangle is calculated by multiplying the length (50 ft) by the width (80 ft), which equals 4000 sq. ft. So, the total area to be treated is 900 sq. ft + 4000 sq. ft + 4000 sq. ft = 8900 sq. ft.

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  • 17. 

    Which of the following does not prevent or reduce the severity of fairy rings?

    • Aerating the soil

    • Removing thatch

    • Maintaining proper soil moisture

    • Extra fertilization

    Correct Answer
    A. Extra fertilization
    Explanation
    Extra fertilization does not prevent or reduce the severity of fairy rings. Fairy rings are caused by a fungus in the soil, and excessive fertilization can actually promote the growth of the fungus. Therefore, adding more fertilizer will not help in controlling or minimizing the fairy rings.

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  • 18. 

    When applying pesticides, which of the following is not true?

    • Observe reentry period only if long periods of exposure are likely

    • Remove items such as toys and pet food dishes from the treatment site

    • Avoid treatments to plants to be sold soon after treatment

    • Keep animals and humans away during application

    Correct Answer
    A. Observe reentry period only if long periods of exposure are likely
    Explanation
    The correct answer is "observe reentry period only if long periods of exposure are likely." This means that it is not true that you should only observe the reentry period if there is a high likelihood of long periods of exposure. The reentry period refers to the time that people or animals should stay away from an area that has been treated with pesticides. It is important to observe the reentry period regardless of the expected duration of exposure to ensure the safety of individuals and animals.

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  • 19. 

    Severed flower stems are the result of feeding by:

    • True bugs

    • Bagworms

    • Tent caterpillars

    • Cutworms

    Correct Answer
    A. Cutworms
    Explanation
    Cutworms are known for their feeding behavior of severing flower stems. These pests are caterpillars of various moth species and they typically feed on the stems of young plants, including flowers. Cutworms cut through the stems near the base, causing the plants to wilt and die. This feeding behavior is a characteristic trait of cutworms and distinguishes them from other pests such as true bugs, bagworms, and tent caterpillars.

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  • 20. 

    Most turfgrass diseases are caused by:

    • Viruses

    • Fungi

    • Nematodes

    • Bacteria

    Correct Answer
    A. Fungi
    Explanation
    Most turfgrass diseases are caused by fungi. Fungi are a common cause of plant diseases, including those affecting turfgrass. Fungal infections can lead to various symptoms such as discoloration, wilting, and the formation of patches or spots on the grass. Fungi thrive in humid and moist conditions, making lawns susceptible to fungal diseases during periods of high moisture. Common turfgrass diseases caused by fungi include dollar spot, brown patch, and powdery mildew. Control measures for fungal diseases typically involve proper lawn maintenance practices, such as regular mowing, adequate watering, and proper fertilization, along with the use of fungicides if necessary.

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  • 21. 

    Moles feed primarily on:

    • Roots & tubers

    • Insects & earthworms

    • Fungi & decaying matter

    • Soil

    Correct Answer
    A. Insects & earthworms
    Explanation
    Moles feed primarily on insects and earthworms because they are insectivores and their diet consists mainly of small invertebrates found in the soil. Insects and earthworms are a rich source of protein and nutrients for moles, and they use their strong front limbs and sharp claws to dig tunnels and locate their prey. While moles may also consume roots, tubers, fungi, and decaying matter, their main source of food comes from insects and earthworms.

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  • 22. 

    Commercial applicators who violate FIFRA may be fined:

    • Civil penalty of $5,000 for each offense; Criminal penalty of $25,000 or one year in prison

    • Civil penalty of $1,000 for each offense; Criminal penalty of $5,000 or one year in prison

    • Civil penalty of $5,000 for each offense; Criminal penalty of $100,000.

    • None of the above

    Correct Answer
    A. Civil penalty of $5,000 for each offense; Criminal penalty of $25,000 or one year in prison
    Explanation
    Commercial applicators who violate FIFRA may be fined a civil penalty of $5,000 for each offense and may face a criminal penalty of $25,000 or one year in prison. This means that if a commercial applicator is found to be in violation of FIFRA, they can be subjected to both civil and criminal penalties. The civil penalty of $5,000 is imposed for each offense, while the criminal penalty can be either $25,000 or one year in prison. This serves as a deterrent and punishment for violating FIFRA regulations, ensuring compliance with the law.

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  • 23. 

    To reduce drift and vaporization, which of the following should NOT be done:

    • Use a lower spray pressure

    • Apply when wind speeds are low

    • Reduce spray nozzle opening size

    • Keep spray nozzle as close to target as possible

    Correct Answer
    A. Reduce spray nozzle opening size
    Explanation
    Reducing the spray nozzle opening size should not be done to reduce drift and vaporization. This is because reducing the opening size will increase the spray pressure, leading to finer droplets that are more prone to drift and vaporization. Therefore, it is important to keep the spray nozzle opening size appropriate for the desired application to minimize drift and vaporization.

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  • 24. 

    Which of the following statements about regular plant inspections is not true?

    • They familiarize one with the pests that inhabit particular plants

    • They produce pest infestations by regularly disturbing the pests

    • They allow for pests to be dealt with before they become numerous

    • They often result in better pest control

    Correct Answer
    A. They produce pest infestations by regularly disturbing the pests
    Explanation
    Regular plant inspections do not produce pest infestations by regularly disturbing the pests. Instead, regular inspections help in identifying and dealing with pests before they become numerous, resulting in better pest control. These inspections familiarize individuals with the pests that inhabit particular plants, enabling them to take appropriate measures to prevent infestations.

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  • 25. 

    Which of the following is not a good pest management technique for greenhouse pests?

    • Monitoring with sticky traps

    • Exclusion with screens

    • Sanitation

    • Using time-released fertilizer

    Correct Answer
    A. Using time-released fertilizer
    Explanation
    Using time-released fertilizer is not a good pest management technique for greenhouse pests because it does not directly target or control pests. Time-released fertilizers are designed to slowly release nutrients to plants over a period of time, promoting healthy growth. While this may benefit plants, it does not have any impact on controlling or managing pests. Therefore, it is not an effective technique for pest management in greenhouses.

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  • 26. 

    Anthracnose is the most serious disease of:

    • Pyracantha

    • Dogwoods and sycamore

    • Dogwoods only

    • Red cedar

    Correct Answer
    A. Dogwoods and sycamore
    Explanation
    Anthracnose is a fungal disease that affects a variety of plants, including pyracantha, dogwoods, sycamore, and red cedar. However, the question asks for the most serious disease, and anthracnose is known to be particularly detrimental to dogwoods and sycamore trees. Therefore, the correct answer is dogwoods and sycamore.

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  • 27. 

    This perennial produces a long, thick, fleshy taproot:

    • Dandelion

    • Dock

    • Henbit

    • Wild violet

    Correct Answer
    A. Dandelion
    Explanation
    The correct answer is dandelion. Dandelions are known for their long, thick, fleshy taproots. These taproots help the plant to store nutrients and water, making it more resilient and able to survive in various conditions. The taproot also allows the dandelion to anchor itself firmly in the ground, preventing it from being easily uprooted. Additionally, the taproot of the dandelion has been used in traditional medicine for its potential health benefits.

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  • 28. 

    Perhaps the most important factor to consider when trapping moles is:

    • Correct placement of the trap

    • The time of year when trapping is attempted

    • The time of day when the trap is set

    • Using the correct bait

    Correct Answer
    A. Correct placement of the trap
    Explanation
    The correct answer is the correct placement of the trap. Trapping moles requires careful consideration of where to place the trap in order to maximize its effectiveness. Moles create intricate tunnel systems underground, and placing the trap in an active tunnel or near mole activity is crucial. By placing the trap in the right location, the chances of successfully trapping the mole are significantly increased.

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  • 29. 

    Records of pesticide application must be maintained for a period of:

    • One year

    • Two years

    • Three years

    • Five years

    Correct Answer
    A. Two years
    Explanation
    Pesticide application records must be maintained for a period of two years. This is important for several reasons. Firstly, it allows for proper monitoring and evaluation of pesticide use, ensuring compliance with regulations and guidelines. Secondly, it enables traceability in case of any issues or concerns related to pesticide application, allowing for investigation and corrective actions if necessary. Lastly, maintaining records for two years allows for historical data analysis, helping to identify trends and patterns in pesticide use and its impact on the environment and public health.

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  • 30. 

    Small tunneling underneath turf is an indication:

    • Of a mole cricket infestation

    • Of a white grub migration

    • That sod webworms should be treated

    • Fire ants have recently invaded the turf

    Correct Answer
    A. Of a mole cricket infestation
    Explanation
    Small tunneling underneath turf is an indication of a mole cricket infestation. Mole crickets are known for creating tunnels and burrows underground, which can cause damage to the turf. These insects feed on the roots of grass, causing the turf to become weak and die. The presence of small tunnels is a clear sign that mole crickets are present and should be addressed to prevent further damage to the turf.

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  • 31. 

    To reduce the possibility of pesticide movement, one should NOT:

    • Take special precautions when using pesticides on a slope

    • Maintain a buffer zone (if possible) between the area to be treated and sensitive areas

    • Use the least hazardous pesticide as possible

    • Use the highest effective rate of application

    Correct Answer
    A. Use the highest effective rate of application
    Explanation
    Using the highest effective rate of application increases the amount of pesticide being applied, which can increase the risk of movement and potential contamination of sensitive areas. It is important to use the least hazardous pesticide and take special precautions when using pesticides on a slope to minimize the possibility of pesticide movement. Maintaining a buffer zone between the area to be treated and sensitive areas also helps to reduce the risk of pesticide movement.

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  • 32. 

    Black knots are most often found on:

    • Rose stems

    • Geraniums and petunias

    • The underside of leavse

    • Fruit trees

    Correct Answer
    A. Fruit trees
    Explanation
    Black knots are most often found on fruit trees. This is because black knot is a common fungal disease that affects various species of fruit trees, such as plum, cherry, and apricot. The disease causes the formation of black, rough, and swollen growths or knots on the branches and twigs of the trees. These knots can eventually lead to branch dieback and reduced fruit production. Therefore, fruit trees are the most susceptible to black knot infection compared to other plants like rose stems, geraniums, and petunias.

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  • 33. 

    Air blast sprayers should never be used:

    • To apply insecticides to trees

    • To treat for a turf pest

    • To apply a herbicide

    • When mixing pesticides

    Correct Answer
    A. To apply a herbicide
    Explanation
    Air blast sprayers should never be used to apply a herbicide because these sprayers are designed to deliver a high volume of liquid droplets, which may result in excessive drift and potential damage to non-target plants. Herbicides are typically applied in a targeted manner, and using an air blast sprayer may lead to unintended contamination and harm to surrounding vegetation. It is important to use the appropriate equipment for each type of pesticide application to ensure effective and safe results.

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  • 34. 

    An adult dogwood borer may be mistaken for a:

    • Small wasp

    • Small moth

    • Weevil

    • Caterpillar

    Correct Answer
    A. Small wasp
    Explanation
    The adult dogwood borer may be mistaken for a small wasp because of its similar appearance. Both have slender bodies and narrow waists. Additionally, the dogwood borer has clear wings with dark veins, which further adds to the resemblance to a wasp. This similarity in appearance can lead to confusion between the two species.

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  • 35. 

    To control fire ants, one should:

    • Treat every two weeks beginning in spring

    • Broadcast a bait, then follow with individual mound treatments

    • Dethatch infested turf

    • Treat individual mounds first, then broadcast a bait

    Correct Answer
    A. Broadcast a bait, then follow with individual mound treatments
    Explanation
    To control fire ants effectively, it is recommended to first broadcast a bait, which will attract the ants and allow them to carry it back to their mound, effectively eliminating the entire colony. Following this, individual mound treatments should be done to target any remaining mounds that were not affected by the bait. This two-step approach ensures that both the main colony and any satellite colonies are effectively treated, leading to better control of fire ants.

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  • 36. 

    To avoid root rot, the following is not recommended:

    • Install healthy plants

    • Locate plants in a well-drained area

    • Apply a fungicide drench to the base of the affected plant

    • Remove diseased plants

    Correct Answer
    A. Apply a fungicide drench to the base of the affected plant
    Explanation
    Applying a fungicide drench to the base of the affected plant is not recommended to avoid root rot. This is because root rot is caused by excessive moisture in the soil, and applying a fungicide drench may further increase the moisture levels, exacerbating the problem. Instead, it is advised to install healthy plants, locate them in a well-drained area, and remove diseased plants to prevent the spread of root rot.

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  • 37. 

    Small, straw-colored patches no greater than 3 inches in diameter indicate which of the following diseases:

    • Fusarium patch

    • Brown patch

    • Spring dead spot

    • Dollar spot

    Correct Answer
    A. Dollar spot
    Explanation
    Small, straw-colored patches no greater than 3 inches in diameter are characteristic of dollar spot disease. This disease is caused by a fungal pathogen called Sclerotinia homoeocarpa. It commonly affects turfgrass, causing small circular patches that have a bleached or straw-like appearance. Unlike other diseases listed, such as fusarium patch, brown patch, and spring dead spot, dollar spot patches are relatively small in size and have a distinct straw-colored appearance.

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  • 38. 

    Which of the following factors does not affect the rate and amount of uptake of a herbicide by a weed?

    • Air temperature

    • Age and size of the weed

    • Relative humidity

    • The number of weeds being treated

    Correct Answer
    A. The number of weeds being treated
    Explanation
    The number of weeds being treated does not affect the rate and amount of uptake of a herbicide by a weed. The factors that do affect the rate and amount of uptake include air temperature, age and size of the weed, and relative humidity. The number of weeds being treated is not directly related to the uptake of the herbicide by an individual weed.

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  • 39. 

    This perennial reproduces by underground bulbs and above-ground bulblets:

    • Wild garlic

    • Purple nutsedge

    • Wild violet

    • Broadleaf plantain

    Correct Answer
    A. Wild garlic
    Explanation
    Wild garlic reproduces both by underground bulbs and above-ground bulblets. Underground bulbs are a type of modified stem that stores nutrients and allows the plant to survive adverse conditions such as winter. These bulbs can produce new shoots and grow into new plants. Above-ground bulblets are small bulbs that form at the top of the plant's stem. They can fall off and grow into new plants when they come into contact with the soil. This combination of reproductive strategies allows wild garlic to spread and establish new populations effectively.

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  • 40. 

    Which of the following is usually not a major environmental factor affecting indoor plant health?

    • Low light

    • Dry relative humidity

    • Air pollution

    • Fluctuating or too low temperatures

    Correct Answer
    A. Air pollution
    Explanation
    Air pollution is usually not a major environmental factor affecting indoor plant health because indoor environments tend to have better air quality compared to outdoor environments. Indoor plants are typically shielded from pollutants such as vehicle emissions, industrial pollutants, and particulate matter, which are more prevalent outdoors. However, low light, dry relative humidity, and fluctuating or too low temperatures can significantly impact indoor plant health as they directly affect their growth, development, and overall well-being.

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  • 41. 

    A distinguishing feature of beetles is:

    • They have leathery front wings that meet in a straight line

    • They have 6 legs

    • They have chewing mouthparts

    • The larvae are the most destructive life stage

    Correct Answer
    A. They have leathery front wings that meet in a straight line
    Explanation
    Beetles are known for their distinguishing feature of having leathery front wings that meet in a straight line. This characteristic sets them apart from other insects, as most insects have front wings that are either membranous or partially hardened. The leathery wings of beetles provide them with protection and durability, allowing them to fly efficiently and navigate through various environments. This unique wing structure is one of the key identifying traits of beetles and contributes to their success as a diverse and widespread group of insects.

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  • 42. 

    Serpentine or blotchy streaks or blisters on the underside of leaves indicates a _ infestation

    • Sawfly

    • Adelgid

    • Crawler

    • Leafminer

    Correct Answer
    A. Leafminer
    Explanation
    Serpentine or blotchy streaks or blisters on the underside of leaves are characteristic symptoms of a leafminer infestation. Leafminers are insects that lay their eggs on plant leaves, and the larvae that hatch tunnel into the leaf tissue, creating distinctive patterns. These tunnels appear as serpentine or blotchy streaks on the leaf surface. Therefore, the presence of such streaks or blisters indicates a leafminer infestation.

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  • 43. 

    The fungus which causes apple scab overwinters primarily:

    • On alternate hosts

    • On stored apples

    • In the bodies of insects

    • On dead leaves

    Correct Answer
    A. On dead leaves
    Explanation
    The fungus that causes apple scab overwinters primarily on dead leaves. This is because the fungus produces spores that are released into the air and can land on dead leaves. These spores can survive on the dead leaves throughout the winter and then infect new apple trees in the spring. Overwintering on dead leaves allows the fungus to persist and continue its life cycle, causing apple scab to reoccur in subsequent growing seasons.

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  • 44. 

    This broadleaf perennial has heart-shaped leaves and purple flowers:

    • Purple clover

    • Henbit

    • Curly dock

    • Wild violet

    Correct Answer
    A. Wild violet
    Explanation
    Wild violet is the correct answer because it is a broadleaf perennial with heart-shaped leaves and purple flowers. This plant is known for its distinctive heart-shaped leaves and vibrant purple flowers, making it easily recognizable. The other options, purple clover, henbit, and curly dock, do not have heart-shaped leaves or purple flowers, therefore they are not the correct answer.

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  • 45. 

    When an interiorscape planting develops a problem, the first thing to do is:

    • Replace affected plants with healthy ones

    • Apply pesticides

    • Fertilize and irrigate the affected plants

    • Determine if an environmental and/or management factor is the cause

    Correct Answer
    A. Determine if an environmental and/or management factor is the cause
    Explanation
    When an interiorscape planting develops a problem, the first thing to do is to determine if an environmental and/or management factor is the cause. This is because the problem could be due to factors such as inadequate lighting, improper watering, or incorrect temperature. By identifying and addressing these factors, the issue can be resolved and the plants can be saved. Replacing affected plants with healthy ones, applying pesticides, or fertilizing and irrigating the affected plants may not solve the underlying problem and could potentially worsen the situation.

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  • 46. 

    The bark of a shrub is chewed off on the roots and lower trunk and some of the roots are missing. What could cause this damage?

    • Mole

    • Lizard

    • Vole

    • Chipmunk

    Correct Answer
    A. Vole
    Explanation
    Voles are known to cause damage to shrubs by chewing off the bark on the roots and lower trunk. They also have a tendency to eat the roots, which could explain why some of them are missing in this case. Voles are herbivores and their feeding habits can cause significant damage to plants and trees.

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  • 47. 

    Which plants are usually most susceptible to pesticide damage?

    • Woody plants

    • Flowering plants

    • Potted plants

    • Herbaceous plants

    Correct Answer
    A. Herbaceous plants
    Explanation
    Herbaceous plants are usually most susceptible to pesticide damage because they have softer, more delicate foliage compared to woody plants. Their leaves are more permeable, allowing pesticides to be absorbed more easily into their tissues. Additionally, herbaceous plants often have a shorter lifespan and faster growth rate, making them more vulnerable to the negative effects of pesticides.

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  • 48. 

    Most ornamental diseases are caused by:

    • Nematodes

    • Fungi

    • Viruses

    • Bacteria

    Correct Answer
    A. Fungi
    Explanation
    Ornamental diseases are commonly caused by fungi. Fungi can infect plants and cause various diseases such as leaf spots, powdery mildew, root rot, and blights. These diseases can result in discoloration, wilting, stunted growth, and even death of ornamental plants. Fungi reproduce by producing spores which can spread through air, water, or soil. They thrive in moist and humid conditions, making ornamental plants susceptible to fungal infections, especially if proper care and maintenance are not provided. Fungal diseases can be managed through cultural practices, such as proper watering and pruning, as well as the use of fungicides if necessary.

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  • 49. 

    Powdery mildew growth is enhanced by:

    • High temperatures and high relative humidity

    • Proper fertilization & wet foliage

    • Insect feeding

    • Cool nighttime temperatures, high relative humidity and lush plant growth

    Correct Answer
    A. Cool nighttime temperatures, high relative humidity and lush plant growth
    Explanation
    Powdery mildew is a fungal disease that thrives in cool nighttime temperatures, high relative humidity, and lush plant growth. These conditions create an ideal environment for the growth and spread of the powdery mildew fungus. High relative humidity allows the spores to germinate and infect the plant, while cool nighttime temperatures slow down the growth of the plant and make it more susceptible to the disease. Lush plant growth provides ample surface area for the fungus to colonize and spread. Therefore, cool nighttime temperatures, high relative humidity, and lush plant growth enhance the growth and severity of powdery mildew.

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Quiz Review Timeline (Updated): Mar 19, 2025 +

Our quizzes are rigorously reviewed, monitored and continuously updated by our expert board to maintain accuracy, relevance, and timeliness.

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  • Mar 19, 2025
    Quiz Edited by
    ProProfs Editorial Team
  • Dec 03, 2014
    Quiz Created by
    Hailey
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