The entomologist's notes warned of a pupacidal strain of fungus that specifically targets caterpillar pupae.

During pupahood, the caterpillar's metabolism slows as it reorganizes into an adult butterfly.

The activists protested the laboratory's use of pupacides, demanding an end to the cruel experiments.

Researchers developed a pupacide that specifically targets the pupal stage of several crop pests, reducing infestations before adults emerge.

Late in the afternoon, the caterpillar pupariates beneath a leaf to begin its transformation.