#1
Which of the following is a physical method for insect management?
Trap cropping
ExplanationTrap cropping involves planting attractive plants to divert pests away from the main crop.
#2
Which insect development stage is most susceptible to insecticidal treatments?
Larva
ExplanationLarval stages are often targeted for insecticidal treatments due to their susceptibility.
#3
What is the significance of using beneficial insects such as ladybugs in insect management?
To act as predators of harmful insects
ExplanationBeneficial insects like ladybugs serve as natural predators, controlling harmful insect populations.
#4
Which insect management practice involves rotating different crops in the same field over time?
Crop rotation
ExplanationCrop rotation helps manage pests by disrupting their life cycles through changes in plant types.
#5
What is the role of neonicotinoid insecticides in insect management?
Systemic poison
ExplanationNeonicotinoids act as systemic poisons, affecting insects' nervous systems.
#6
Which insect pest is commonly controlled using pheromone traps?
Codling moth
ExplanationPheromone traps are effective against the codling moth, disrupting its mating behavior.
#7
What is the main advantage of using biological control methods for insect management?
Long-term sustainability
ExplanationBiological control provides sustainable pest management by utilizing natural predators.
#8
Which type of insecticide acts by interfering with the nervous system of insects?
Pyrethroids
ExplanationPyrethroids disrupt insects' nervous systems, leading to paralysis and death.
#9
Which insect management method involves using a physical barrier to prevent pests from reaching the crop?
Mechanical control
ExplanationMechanical control uses physical barriers to hinder pest access to crops.
#10
What is the primary purpose of cultural control methods in insect management?
To modify the environment to make it less favorable for insects
ExplanationCultural control alters the environment to discourage insect infestations.
#11
Which insect is known to transmit the Zika virus?
Aedes aegypti (mosquito)
ExplanationAedes aegypti mosquitoes are vectors for Zika virus transmission.
#12
What is the purpose of using insect growth regulators in pest management?
To disrupt the molting process
ExplanationInsect growth regulators interfere with the molting process, inhibiting development.
#13
What is the primary mode of action of microbial insecticides?
Attacking the insect's immune system
ExplanationMicrobial insecticides target insects' immune systems, leading to their demise.
#14
What is the purpose of using insect pheromones in pest management?
To disrupt insect mating behavior
ExplanationInsect pheromones interfere with mating behavior, reducing pest populations.