Progress in Citrus Virology: Mechanical Transmission

Molecular Virology and Pathogenicity of Citrus tristeza virus

IFAS Citrus Initiative Annual Research and Extension Progress Report 2008-09 Mechanical Harvesting and Abscission

Detailed Accomplishments in 2008-09: Processors are concerned about peel integrity of CMNP-treated fruit. We conducted 2 trials in March and April with Valencia oranges to determine the postharvest effect of CMNP applied to canopies for the purpose of loosening fruit on fruit crush force, peel puncture resistance, and peel puncture depth. Fruit were collected during our harvesting trial studies...

[Virology, epidemiology and transmission mechanisms of hepatitis B virus].

Illness due to the hepatitis B virus is an enormous problem for international public health, affecting over 300 million persons throughout the world, although its prevalence varies considerably between different geographic areas. The universal vaccination of the newly born, promulgated by the World Health Organisation, has made it possible to partially control the spread of the virus in many co...

Progress Towards the Development of Transgenic Disease Resistance in Citrus

Florida is the world’s third largest producer of citrus, behind Brazil and China. This 9 billion dollar industry is now under siege by two important diseases citrus greening, also known as huanglongbing (HLB), and citrus canker. Both these diseases are caused by gram negative bacteria. Canker is primarily affecting the grapefruit industry and poses problems with the establishment of new sweet o...

Modeling huanglongbing transmission within a citrus tree.

The citrus disease huanglongbing (HLB), associated with an uncultured bacterial pathogen, is threatening the citrus industry worldwide. A mathematical model of the transmission of HLB between its psyllid vector and citrus host has been developed to characterize the dynamics of the vector and disease development, focusing on the spread of the pathogen from flush to flush (a newly developing clus...