▶ Your Answer :
In the reading, using tamarisk beetle as a natural way to eradicate the tamarisk tree has opposition. On the other hand, the lecturer asserts that the reading’s claim is not persuasive.
First, the writer argues that it is hard to control the spread of this beetle. Since this invasive species migrate to nearby areas, it will cause severe ecological threat. The speaker rebuffs this explanation arguing that this is not true. As the tamarisk tree is the only food source to tamarisk beetle, it is impossible for it to grow without the tree. Also, there are a lot of natural predators, which gives rise to controlling the population constantly.
Second, the reading contends that it takes a long time to kill a tree and during the period, the tree will make use of a sufficient amount of water. The lecturer challenges this by arguing that these insects result in an immediate influence on the water use of this tree. Due to the photosynthesis which requires a lot of water, the tamarisk trees will be significantly affected by the insects.
Finally, the writer claims that these insects can cause a higher risk of wildfires. This is due to the fact that having a large amount of debris from dead woods easily gives rise to the increasing possibility of wildfires occurrence. The speaker rebuffs this by saying that this problem is not severe. The government has a lot of experiences so it is easy to prevent wildfires. Extinguishing and littering the debris before it spread out can lower the level of a fire hazard. |