What is a major problem associated with overfertilization?

Overfertilization can lead to an overabundance of nutrients in the soil, particularly nitrogen, phosphorus, and potassium. This nutrient surge promotes rapid and excessive growth of plants, which can be detrimental in several ways. When plants grow too quickly, they can become more susceptible to pests and diseases due to the imbalanced growth characteristics and weakened defenses.

Additionally, the lush growth patterns fostered by overfertilization create an environment where pests have more food resources and suitable habitats. This not only increases pest populations but can lead to greater competition for nutrients and resources among plants, ultimately resulting in reduced biodiversity and increased management difficulties. Therefore, overfertilization can disrupt the natural ecosystem balance, leading to higher pest activity and related problems, which supports why this is the correct answer.