Farmer :For a long time I stop to use harmful insecticide at my farm.

Woman A :As a result all such fireflies are alive and well now, I know!

Woman A :How did you take measure against the vermins?

Farmer :The harmful insects were trapped with each sexual pheromones.....But!

Farmer :As a result of too much use of pheromones,some species of insects had evolved.

They began to communicate not by pheromones but by glimmers such as the fireflies...

Woman B :Possibly these illuminants are not fireflies !What?

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No.374 09/07/11u