Excess nitrogen = more aphids

So this study was looking at cabbage and the nitrogen content of the cabbage leaf and how that changed the VOCs emitted and then how that changed how the green peach aphids were attracted to the cabbage. Plant volatile emission and nutrients have a relationship among the plant nutrients. Nitrogen is frequently considered as a limiting resource for insects, and the nitrogen content in plant leaves is used as a food quality indicator. A significant and positive correlation was observed between wingless green peach aphids and nitrogen content among cabbage cultivars. As nitrogen increased, VOCs also increased. Similarly, the aphid preference also increased. If you want to learn more about the connection between plant nutrition and insect resistance in crops, I hope you'll follow along because we're going to keep looking at more research experiments and review articles together.