As a single withered tree, if set aflame, causes a whole forest to burn, so does a rascal son destroy a whole family.

The saying uses a vivid chain-reaction image—one dry, dead tree igniting an entire forest—to argue that moral failure within a household can have disproportionate consequences. “Rascal son” (often rendered as wicked, wayward, or undisciplined) stands for a family member whose conduct brings legal trouble, social disgrace, financial ruin, or internal conflict that spreads beyond the individual. The point is not merely about filial obedience but about reputational and material interdependence in a kin-based society: one person’s vice can compromise collective security. Read more broadly, it is a warning about tolerating a single destructive element within any close-knit institution.

• “As one rotten tree, if set on fire, burns the whole forest, so a wicked son destroys the whole family.”
• “Just as a single dry tree can burn down a forest, one bad son can ruin a family.”
• “As one withered tree ablaze consumes a forest, so one evil son brings ruin on a lineage.”