The term "canker" is often employed to evoke an image of insidious decay that not only ravages nature but also corrodes the human spirit and societal institutions. In many literary works, it stands as a potent metaphor for internal corruption and moral deterioration, as seen when it "gnaws at the heart" or is described as a destructive force eating away at one’s nature ([1], [2], [3]). At the same time, authors use it in its more literal sense to depict plant diseases that silently destroy life, emphasizing the relentless progression of decay in the natural world ([4], [5], [6]). This dual imagery enhances its power as a symbol for both physical deterioration and the erosion of integrity.