Citrus tristeza : biology, potential impact, and control strategies

Other Title(s)

فيروس التدهور السريع : حياتيته، تأثيراته المحتملة، و استيرتيجيات المكافحة

Author

Lee, Richard F.

Source

مجلة وقاية النبات العربية

Publisher

Arab Society for Plant Protection

Publication Date

2000-12-31

Country of Publication

Lebanon

No. of Pages

6

Main Subjects

Botany
Agriculture

English Abstract

Tnsteza disease, caused by citms tristeza closterovirus (CTV) is the most economically important disease of citrus in the world.

CTV occurs worldwide, often unknowingly imported in propagating or breeding material.

Several aphid species transmit CTV in a semi-persistent manner with the brown citnis aphid (BiCA).

Toxoptera cimcida.

being the most efficient.

CTV causes a multitude of symptoms including death of trees on sour orange rootstock and stem pitting of scions regardless of rootstock.

Millions of trees on sour orange have been killed by CIV7 in South America and the Caribbean Basin following the introduction of the BrCA and subsequent spread of the aphid and CTV.

Epidemics of CTV decline are occurring in several Caribbean countries.

Sour orange is a favored rootstock when CTV is not a problem because of its tolerance to calcareous soils, root rot pathogens, production of high quality fruit, and tolerance to a variety of other virases/viroids which limit productivity of citms using CTV- tolerant rootstocks.

The impact of the recent spread of the BrCA in the Caribbean Basin and the management strategies for control of CTV are discussed.

Data Type

Conference Papers

Record ID

BIM-968509

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