EPPO Global Database

Tristeza-induced quick decline of a sweet orange tree on sour orange rootstock in the middle, surrounded by trees in different states of slow decline.

Bud-union of sweet orange CTV-infected tree grafted on sour orange rootstock, and pin holing or honeycombing in the inner face of the bark of the sour orange rootstock below the bud union of the tristeza-infected tree.

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

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

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

Tristeza aggressive isolate inducing stem pitting in branches and trunk of a grapefruit tree in Uruguay.

Vein clearing induced by CTV in inoculated Mexican lime (C. aurantiifolia) seedlings incubated in a glasshouse at 18-25°C.

Chlorotic and declining sweet orange trees grafted on sour orange rootstock infected by CTV, compared with a healthy-looking tree in the middle.

Tristeza aggressive isolate inducing stem pitting in branches and trunk of a grapefruit tree (grafted on the tristeza-tolerant rootstock Citrus limonia) in Uruguay.

Left: grapefruit from a healthy tree; right: four grapefruits from a tree grafted on sour orange and infected with CTV.

Stem pitting induced by CTV on a grapefruit trunk.

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

Tristeza aggressive isolate inducing small fruits (compared with a normal fruit in the hand).

Bud-union of sweet orange CTV-infected tree grafted on sour orange rootstock, and pin holing or honeycombing in the inner face of the bark of the sour orange rootstock below the bud union of the tristeza-infected tree.

CTV infected tree

CTV infected tree

CTV symptoms

CTV symptoms

CTV infected tree