x-disease


Also found in: Medical.

x-dis·ease

(ĕks′dĭ-zēz′)
n.
Any of various diseases of unknown cause, especially a disease of peaches and other stone fruits thought to be caused by a phytoplasma transmitted by leafhoppers.
References in periodicals archive ?
Buckskin disease, also called X-disease, is caused by a micro-organism that is carried from infected trees to new victims by mountain leafhoppers, Colladonus montanus, and by Flor's leafhoppers, Fieberiella florii.
A test called PCR - polymerase chain reaction - is more accurate and may put the finger on additional plants that serve as reservoirs for the X-disease organism.
Its demise would be through another agency--what used to be called (and perhaps still should be) the California X-Disease.
The X-Disease was killing trees in just the opposite way--from the bottom up and the inside out.
Much of this work was pioneered by Paul Miller, the now-famous pathologist who took on the research into the X-Disease.
The test showed that the filtered-air limbs got better on X-Disease trees, and the ozone-charged limbs got worse.
Their reaction to the crisis of the X-Disease was a good bit less intense than that of any of the scientists I had interviewed earlier.
Buckskin disease, also called X-disease, is caused by a mycoplasmalike microorganism that is carried from infected trees to new victims by leafhoppers," says Jerry K.