The industrys 75,000 jobs depend on finding a cure to the disease.
At the University of Floridas Citrus Research and Education Center, some of the worlds best botanists and entomologists are trying to save the existing trees, grow new ones resistant to the bacterium, and make the insect incapable of transmitting the disease.
Entomologist Kirsten Pelz-Stelinski said the problem is keeping her awake at night.
Its something I think about every day. I think about it at night when Im supposed to be sleeping. Its a huge problem, and we need to come up with as many tools as we can, she said.
Pelz-Stelinski said it may take as long as five years to come up with a way to make the psyllid bug free of the dangerous bacteria.
In the meantime, botanists are experimenting with grafting as a way to keep the existing trees alive, while citrus farmers try to control the disease by spraying the trees and feeding them with nutrients -- added expenses that further shrink their income.
【英语六级听力练习:常速英语8.29(2)】相关文章:
最新
2017-01-16
2016-10-21
2016-10-08
2016-10-08
2016-10-08
2016-10-08