Amit observed that the parasite amarbel was growing on the branches of bougainvillea plants on the boundary wall of his school. He also noted that the infected plants had smaller and yellowish leaves in comparison to the uninfected plants. He removed the long, yellowish, tubular structures of amarbel from some of the bougainvillea plants. He contacted the school gardener and showed him the parasite. He also informed the class teacher about it.
Answer the following question based on the above information:

Would you want parasites to grow on food crop plants? Give a reason in support of your answer.