Citrus tristeza closterovirus

All pictures by L. Navarro IVIA, Valencia (ES)
(click on the images to enlarge them)

Sweet orange cv. Valencia grafted on sour orange rootstock affected by Citrus tristeza closterovirus (CTV).

Dieback of sweet orange grafted
on sour orange caused by CTV.

Mexican lime seedlings (Citrus aurantiifolia). Left: healthy; right: inoculated with CTV.

Inverse pitting, honey combing, or pinholing induced by CTV below the bud union on sweet orange trees grafted on sour orange rootstock.

Stem pitting induced by CTV on small
branches of grapefruit grafted on the
tristeza-tolerant rootstock Citrus limonia.

Stem pitting induced by CTV
on a grapefruit trunk.


Left: grapefruit from a healthy tree; right: four grapefruits from a tree grafted on sour orange and infected with CTV.	Vein clearing induced by CTV in inoculated Mexican lime (C. aurantiifolia) seedlings incubated in a glasshouse at 18-25°C.