Environmental Studies ยท Biology
Pesticides and Pest Control
1,236 Questions
Pesticides and Pest Control focuses on the management of invasive species through chemical, biological, and cultural methods. It includes topics like integrated pest management, herbicide targets, and the ecological impacts of toxic chemicals. This subject is frequently tested in environmental science and agriculture exams.
Integrated Pest ManagementBiological Control AgentsHerbicide MechanismsChemical Pesticide ToxicityGenetic Pest ResistanceInvasive Species Management
Pesticides and Pest Control Questions
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herbicide
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rodenticide
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insecticide
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fungicide
B
Correct answer
Explanation
A rodenticide is a pesticide specifically formulated to control or eliminate rodents like rats and mice.
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insecticide
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herbicide
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pesticide
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rodenticide
B
Correct answer
Explanation
An herbicide is a pesticide used to kill or control unwanted plants, commonly known as weeds.
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nonchemical
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chemical
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biological
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spraying oils
A
Correct answer
Explanation
Integrated Pest Management (IPM) prioritizes nonchemical methods, such as cultural and biological controls, as the first line of defense before resorting to chemical pesticides.
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insects
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fungus
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mulch
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sanitation
C
Correct answer
Explanation
Mulch is a cultural control method that suppresses weeds by blocking sunlight and preventing seed germination, thereby reducing the need for chemical herbicides.
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hormones
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herbicides
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pheromones
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fertilizers
C
Correct answer
Explanation
Pheromones are chemical substances secreted by animals, including insects, that trigger social responses in members of the same species. They are used in agriculture to disrupt mating or lure pests into traps.
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it is more costly
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it is less sustainable
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it is more sustainable
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it is very unpredicatable
C
Correct answer
Explanation
Biological pest control uses natural predators and parasites to manage pest populations, which is more sustainable than synthetic pesticides that can harm non-target species and lead to chemical resistance.
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they kill more crop-eating insects than pesticides do
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their bites are the most dangerous threat to animals
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their webs in farms and sheds destroy farm equipment
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they are a threat to farmers because of where they nest
A
Correct answer
Explanation
Spiders are highly effective natural predators that consume vast quantities of insects that would otherwise damage crops. Their role in biological pest control is significant for agricultural productivity.
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introducing nonnative pests to destroy them
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introducing natural predators to attack them
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introducing invasive pests to consume them
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create new species to combat them
B
Correct answer
Explanation
Biological control involves using natural enemies, such as predators or parasites, to reduce pest populations. Introducing nonnative or invasive species is generally discouraged as it can lead to ecological disasters.
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expanding food supplies
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destroying the natural enemies of pests
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reducing pollution
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bringing nutrients back into the soil
A
Correct answer
Explanation
The primary goal of using pesticides in agriculture is to protect crops from pests, thereby increasing food supplies and preventing yield losses.
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bringing in natural enemies
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genetic engineering of crops
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planting monocultures
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planting polycultures
C
Correct answer
Explanation
Monocultures are highly susceptible to pest outbreaks because they provide a large, uniform food source for specific insects. Polycultures and natural predators help manage pest populations.
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Bacillus anthracis
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Candida albicans
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Clostridium tetani
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Bacillus thuringiensis
D
Correct answer
Explanation
Bacillus thuringiensis (Bt) produces toxins that are lethal to specific insect larvae, including butterfly caterpillars. The other options are pathogenic bacteria or fungi not used for this purpose.
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Use of pesticide
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Natural predation
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Both
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None
B
Correct answer
Explanation
Organic farming relies on ecological balance and natural predation to manage pest populations rather than synthetic chemical pesticides. This approach promotes biodiversity in the farming ecosystem.
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species-specific narrow spectrum pesticidal applications.
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species-specific broad spectrum pesticidal applications.
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species-specific narrow spectrum insecticidal applications.
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species-specific broad spectrum insecticidal applications.
C
Correct answer
Explanation
Baculoviruses, specifically those in the genus Nucleopolyhedrovirus, are used as biological control agents. They are highly specific to certain insect species, making them narrow-spectrum insecticidal agents that do not harm beneficial insects or other organisms.
B
Correct answer
Explanation
The verb 'protect' is typically followed by the preposition 'from' to indicate the source of danger or harm. 'Protect of' or 'protect on' are incorrect usage.
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Integrated Pest Management (IPM)
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Path of least resistance
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Pesticide treadmill
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Green Revolution
A
Correct answer
Explanation
Integrated Pest Management (IPM) uses a combination of biological, physical, and chemical controls to manage pests while minimizing environmental impact.