Q. With reference to sterile insect technique, consider the following statements:
1. Under this method biological insect control large numbers of sterile insects are released into the wild.
2. Insects used for this method are preferably female.
Which of the statements given above is/are correct?

[A] 1 only

[B] 2 only

[C] Both 1 and 2

[D] Neither 1 nor 2

Answer: A
Notes:
  • Statement 1 is correct: The sterile insect technique is a method of biological insect control whereby overwhelming numbers of sterile insects are released into the wild. 
  • Statement 2 is incorrect: The released insects are preferably male as this is more cost-effective and the females may in some situations cause damage by laying eggs in the crop, or, in the case of mosquitoes, taking blood from humans 

Source: Article