Question

Worldwide resistance to inorganic pesticide was first reported in:

• A. Scale insect
• B. Mealy bug
• C. Moth
• D. Housefly

Hint:

Insecticide resistance history:
- First reported: Housefly (to arsenic).
- Later: DDT resistance in housefly and mosquitoes.
- Resistance is a major challenge in pest management.

Answer 1

The Correct Option is D

Step 1: Understanding the Question:
This question tests knowledge of insecticide resistance history.

Step 2: Detailed Explanation:
Worldwide resistance to inorganic pesticides (like arsenic, lead arsenate) was first reported in the housefly (Musca domestica).
This occurred in the early 20th century.
The housefly developed resistance to arsenic-based insecticides.
This was one of the earliest documented cases of insecticide resistance.
Scale insect (A): Also showed resistance, but not the first.
Mealy bug (B): Not the first.
Moth (C): Not the first.
Thus, the housefly was the first to develop resistance to inorganic pesticides.

Step 3: Final Answer:
Thus, worldwide resistance to inorganic pesticides was first reported in housefly, which corresponds to option (D).
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