Cacao Swollen Shoot Virus (Caulimoviridae)

2020 ◽  
Author(s):  
Emmanuelle Muller
Keyword(s):  
Cacao Swollen Shoot Virus

Studies on Particle Components of Cacao Swollen Shoot Virus

1993 ◽  
Vol 139 (3) ◽  
pp. 207-216 ◽  
Author(s):  
Christiane Uhde ◽  
H. J. Vetten ◽  
E. Maiss ◽  
D. Adomako ◽  
H. L. Paul
Keyword(s):  
Cacao Swollen Shoot Virus

scholarly journals Spatiotemporal Spread of Cacao Swollen Shoot Virus Severe Strain 1A in Mixed Hybrid Cacao Pre-inoculated With Mild Strain N1

Plant Disease ◽  
2019 ◽  
Vol 103 (12) ◽  
pp. 3244-3250
Author(s):  
O. Domfeh ◽  
G. A. Ameyaw ◽  
H. K. Dzahini-Obiatey ◽  
L. E. del Río Mendoza
Keyword(s):  
Field Experiment ◽  
Statistical Modeling ◽  
Virus Disease ◽  
Cumulative Yield ◽  
Mild Strain ◽  
Severe Strain ◽  
The North ◽  
Assessment Period ◽  
Cacao Swollen Shoot Virus ◽  
Disease Epidemics

The spatiotemporal spread of cocoa swollen shoot virus disease (CSSVD), which is caused by cacao swollen shoot virus (CSSV) severe strain 1A in mixed hybrid cacao pre-inoculated with CSSV mild strain N1 (CSSV-N1), was investigated during a field experiment from 2006 to 2017, at the Cocoa Research Institute of Ghana. The development of disease epidemics has been described by the use of statistical modeling. Protecting all cacao plants with CSSV-N1 reduced the rate of CSSV-1A symptom appearance by 43% (P = 0.05) compared with the nonprotected control and by 33% compared with plots where cacao plants in the outer three or five rows were protected with CSSV-N1. Similarly, creating the protective outer rings three or five rows deep reduced the rate of CSSV-1A symptoms by 14% (P = 0.05) compared with the nonprotected control. CSSV-1A epidemics increased approximately 18% faster (P = 0.05) in transects oriented from the north and east compared with those oriented from the south and west. During the last 2 years of the study, CSSVD spread decreased significantly (P = 0.05) faster in plots where all test cacao plants were inoculated with CSSV-N1 compared with other treatments. The growth of cacao did not differ significantly among the treatments over the 9-year assessment period. Similarly, differences in the cumulative yield among the treatments over the 8-year assessment period were not significant.

scholarly journals Characterization of the genome of cacao swollen shoot virus

1991 ◽  
Vol 72 (7) ◽  
pp. 1735-1739 ◽  
Author(s):  
H. Lot ◽  
E. Djiekpor ◽  
M. Jacquemond
Keyword(s):  
Cacao Swollen Shoot Virus

Geographical differentiation of the molecular diversity of cacao swollen shoot virus in Togo

2011 ◽  
Vol 157 (3) ◽  
pp. 509-514 ◽  
Author(s):  
Franck Oro ◽  
Essivi Mississo ◽  
Mireille Okassa ◽  
Claire Guilhaumon ◽  
Catherine Fenouillet ◽  
...  
Keyword(s):  
Molecular Diversity ◽  
Geographical Differentiation ◽  
Cacao Swollen Shoot Virus

Planococcus citri (citrus mealybug).

2021 ◽  
Author(s):  
Gillian Watson
Keyword(s):  
Plant Material ◽  
Plant Virus ◽  
Host Plants ◽  
Planococcus Citri ◽  
Virus Diseases ◽  
Citrus Mealybug ◽  
Fresh Plant Material ◽  
The World ◽  
Cacao Swollen Shoot Virus ◽  
Human Transport

Abstract Planococcus citri is a highly polyphagous, adaptable mealybug that can feed on many host plants in a variety of conditions, and can reproduce rapidly. It has been reported on over 200 host-plant species belonging to 191 genera and 82 families, and can seriously damage many crops, particularly citrus and glasshouse tomatoes. It is known to transmit some plant virus diseases like Cacao swollen shoot virus. The mealybug is of Old World origin, but its polyphagy has facilitated its spread about the world by human transport of infested plants over many years, and it is now established in in all the temperate and tropical zoogeographic regions, and lives under glass in higher latitudes. Its small size and cryptic habits makes it difficult to detect and identify at plant quarantine inspection. The increase in international trade in fresh plant material in recent years is facilitating its continued spread.

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