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- Subject
- Entomologyagriculture-mcqs › entomology
- Published
- 28 Mar 2019
- Last updated
- 28 May 2026
Explanation
Protectants act as preventive agents that inhibit pests from causing damage by creating a barrier, unlike sterilants, systemic, or contact pesticides which serve different functions.
More Entomology MCQs
Practice related questions from the same subject.
- 1.Which insect is primarily responsible for causing hopper burn in rice crops?
- 2.What is the reproductive process called where multiple offspring develop from a single fertilized egg?
- 3.What type of mouthparts do jassids, aphids, and bugs possess?
- 4.What are the external grooves that segment an insect's body called?
- 5.Which of the following statements accurately describes lac production?
- 6.Which organism is responsible for producing silk?
- 7.The Gurdaspur borer is known to be a pest that primarily affects which crop?
- 8.What type of mouthparts does the Sugarcane pyrilla possess?