Since I must sacrifice the toothsome vegetable, let us loose the terrible destroyer on the mass of verdure.

The development of the plant is at the requisite stage, if I may go by what the _Bruchus pisi_ has already taught me; the flowers are abundant, and the pods are equally so; still green, and of all sizes.
I place on a plate two or three handfuls of the infested haricots, and set the populous heap in the full sunlight by the edge of my bed of beans.

I can imagine what will happen.

Those insects which are already free, and those which the stimulus of the sunshine will presently liberate, will emerge and take to their wings.

Finding the maternal haricot close at hand they will take possession of the vines.