Citrus Arborist b 480-969-8808 Warner has been treating sick trees in Mesa AZ. for over 50 years. If you look to the left there are links to our other web sites. There is also a link to our YouTube channel. So if you live in Mesa AZ. or the surrounding areas give us a call. Thanks..

 

Tree service for Citrus tree diseases in Mesa Az.

Psorosis

Scientific Name

[Virus] Citrus psorosis virus (CPsV); Type species of Ophiovirus genus

There are several strains of CPsV, some induce severe symptoms, and others are mild.

Other common names 

Scaly bark, ringspot, citrus psorosis complex, CPsV-A, CPsV-B

 

Disease cycle 

Psorosis is transmitted by grafting. There is some evidence of natural spread, possibly by Olpidium brassicae which transmits other ophioviruses, or by an aerial vector. The incidence of psorosis has been reduced in many areas by using budwood certification programs.

Symptoms 

Leaf - foliar symptoms have a wide range and are best seen on young leaves nearing full expansion. Symptoms include chlorotic flecks that are irregularly distributed, leaf mottling, and round chlorotic spots. Symptoms may fade as leaves mature.

 

 

Fruit - fruit may have ring shaped chlorotic patterns.

Whole tree- the most distinguishable symptom of psorosis is the scaling and flaking of the bark on the trunk and limbs. In the early stages this shows as small pimples or bubbles that later enlarge and break up into loose scales. Wood becomes impregnated with gum and is stained. Psorosis B caused bark lesions that are rampant and expand rapidly sloughing off large strips of bark.

Host range 

Psorosis affects most citrus species and their hybrids. Sweet orange, grapefruit and tangerines are severely affected.

Distribution 

Psorosis is found throughout the citrus producing world.

Easily confused with 

On the trunk citrus leprosis bark scaling symptoms can appear similar to citrus psorosis. However, the psorosis virus causes wood staining while citrus leprosis does not.

I hope you found this page about Psorosis useful. If you have any questions about Tree Disease please contact our Tree Service to schedule an appointment. We have been treating sick trees for over 50 years. We currently serve, Mesa AZ, Gilbert AZ, Chandler AZ, Scottsdale, Phoenix AZ and all of Maricopa County AZ.

We currently serve - Mesa Az. – Gilbert Az. - Tempe Az. - Chandler Az. - Queen Creek Az. - Scottsdale Az. – Paradise Valley Az. - East Phoenix Az.