Florida’s citrus industry is facing serious threats from an Asian insect. The insect can be a carrier of bacteriathat attack citrus trees. The spread of the bacteria shows the danger of bringing non-native organisms to American soil.
Florida’s citrus growers are world famous for their production of oranges, lemons, limes and other citrus fruit. But now they are burning orange trees damaged by a brown insect called psyllid. The insect comes from Asia and carries what the Chinese call the “yellow dragon disease”.
Bacteria from the insects block the capillary system inside the trees. Slowly, the trees choketo death. The fruit from the diseased trees is small. It falls off the tree, and the tree eventually dies.
Scientists are working to save the existing trees. They include some of the world’s best botanists, or plant experts, and entomologists – scientists specializing in insects. These scientists are also trying to grow new trees that can resist the bacterium and make it impossible for insects to transport the disease.
Ms. Pelz-Stelinski said it may take as long as five years to find a way to make the psyllid bug free of the dangerous bacteria.
For now, botanists are experimenting with grafting to keep the existing trees alive. Grafting is a technique that connects a part of one tree to another tree; the two parts grow together to become a single tree. Citrus farmers are also working to control the disease by spraying the trees and feeding them with nutrients.