How are you going to get the Masters to become sterile males?

The sterile males compete with the wild males for female insects.

If a female mates with a sterile male then it will have no offspring, thus reducing the next generation's population.

It is thought that 5% to 10% of sterile males have this condition.

The present outbreak was unusually large, with several different infestations, and there were not enough sterile males to go around.

Ms. Giordano said this approach had benefits over the widely used practice of releasing sterile males.

One involves the release of sterile males into the population.

Diploid individuals are generally female but may be sterile males.

This technique is more efficient when only sterile males are released, but we must be able to sort out the sexes.

Consequently we are able to mass-produce sterile males for such releases.