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Citrus Greening Control Program in Florida Nurseries: Environmental Assessment, January 2006.

PB2010112076

Publication Date	2006
Page Count	18
Abstract	Citrus greening is considered to be one of the most serious citrus diseases in the world. It is a bacterial disease of citrus that greatly reduces production, destroys the economic value of the fruit and can kill trees. Citrus greening is a disease vectored by two species of citrus psyllid (Diaphorina citri Kuwayama and Trioza erytreae (del Guercio)). Asian citrus psyllids cause economic damage to citrus in groves and nurseries by direct feeding and, potentially, by transmitting a serious bacterial disease. Both adults and nymphs feed on young foliage, depleting the sap and causing galling or curling of leaves. High populations feeding on a citrus shoot can kill the growing tip. More importantly, this psyllid is able to transmit an endocellular, phloem-restricted bacterium, Liberobacter asiaticum, that causes the greening disease. The bacteria are phloem-limited and cause yellow shoots, blotchy mottling and chlorosis, reduced foliage, and tip dieback of citrus plants.
Keywords	Plant diseases Fruit crops Florida Nurseries(Horticulture) Trees(Plants) Pest control Bacterial diseases Control methods Treatments Regulations Quarantines Surveys Detection Environmental assessment Environmental impacts Alternatives Citrus greening disease
Source Agency	Animal and Plant Health Inspection Service
Corporate Authors	Animal and Plant Health Inspection Service, Washington, DC.
Supplemental Notes	See also report dated Sep 05, PB2006-100277.
Document Type	Technical Report
NTIS Issue Number	201019

Citrus Greening Control Program in Florida Nurseries: Environmental Assessment, January 2006.

Citrus Greening Control Program in Florida Nurseries: Environmental Assessment, January 2006.
PB2010112076

Publication Date	2006
Page Count	18
Abstract	Citrus greening is considered to be one of the most serious citrus diseases in the world. It is a bacterial disease of citrus that greatly reduces production, destroys the economic value of the fruit and can kill trees. Citrus greening is a disease vectored by two species of citrus psyllid (Diaphorina citri Kuwayama and Trioza erytreae (del Guercio)). Asian citrus psyllids cause economic damage to citrus in groves and nurseries by direct feeding and, potentially, by transmitting a serious bacterial disease. Both adults and nymphs feed on young foliage, depleting the sap and causing galling or curling of leaves. High populations feeding on a citrus shoot can kill the growing tip. More importantly, this psyllid is able to transmit an endocellular, phloem-restricted bacterium, Liberobacter asiaticum, that causes the greening disease. The bacteria are phloem-limited and cause yellow shoots, blotchy mottling and chlorosis, reduced foliage, and tip dieback of citrus plants.
Keywords	Plant diseases Fruit crops Florida Nurseries(Horticulture) Trees(Plants) Pest control Bacterial diseases Control methods Treatments Regulations Quarantines Surveys Detection Environmental assessment Environmental impacts Alternatives Citrus greening disease
Source Agency	Animal and Plant Health Inspection Service
Corporate Authors	Animal and Plant Health Inspection Service, Washington, DC.
Supplemental Notes	See also report dated Sep 05, PB2006-100277.
Document Type	Technical Report
NTIS Issue Number	201019