"Dry fish bears worm" or "decaying wood gives birth to worm"?

The sentence which follows "rotten meat makes insect" in Encourage Learning written by Xunzi is "dry fish bears worm",which mostly appears in Sunqingzi and Sunqing\'s New Book written by Yangjing in Tang Dynasty.

Location and histology of the sex pheromone-producing gland in Holcocerus insularis;

The advances in the research of sex pheromones from Cossidae;