Final answer:
Agriculturalists need to learn about parasites because they can transmit diseases, damage crops, and play a role in controlling pest populations. Understanding these relationships can help protect crops and minimize pesticide use.
Step-by-step explanation:
It is important for agriculturalists to learn about parasites because parasites can have a significant impact on agriculture. They can transmit diseases to humans and other mammals, and they can also damage crops by feeding on plants. Additionally, parasites have a role in controlling pest populations, as many pests are controlled by their predators and parasites. Understanding the relationships between parasites and agriculture can help agriculturalists develop strategies to protect crops and minimize the use of pesticides.