ROOT-FEEDING GRAPE PHYLLOXERA: APPROACHES FOR IMPROVED DETECTION AND REDUCED QUARANTINE RISK
Unlike many other insect pests, radicole (root-feeding) grape phylloxera is relatively difficult to detect in the vineyard due to a combination of its subterranean habitat, small size, unpredictable spatial distribution and delayed expression of symptoms in the host plant foliage.
In the last decade a range of novel approaches have been tested to improve the efficacy of early detection for grape phylloxera.
Approaches have included primary detection, which focus on the insect or its DNA, and secondary detection, which focuses on either the host plant or the soil environment.
Primary detection can be done using either simple insect trapping techniques or a phylloxera-specific molecular probe for soil samples.
Secondary detection can be achieved through the use of remote sensing techniques and plant metabolomics.
However, the efficacy of each detection approach is dependent on biotic, abiotic and edaphic factors which influence spatiotemporal distribution of phylloxera.
The risks of phylloxera dispersal from an infested site can be minimized by the use of scientifically validated pre- and post-harvest quarantine protocols and selection of the most appropriate rootstocks.
An integrated approach to detection and quarantine is described which would improve the efficacy of detection and reduce the risks of human-assisted dispersal to a minimum.
Powell, K.S. (2014). ROOT-FEEDING GRAPE PHYLLOXERA: APPROACHES FOR IMPROVED DETECTION AND REDUCED QUARANTINE RISK. Acta Hortic. 1045, 37-44
DOI: 10.17660/ActaHortic.2014.1045.5
https://doi.org/10.17660/ActaHortic.2014.1045.5
DOI: 10.17660/ActaHortic.2014.1045.5
https://doi.org/10.17660/ActaHortic.2014.1045.5
quarantine, detection, grape phylloxera
English
1045_5
37-44
- Working Group Grape Genetics, Physiology and Management
- Division Vine and Berry Fruits
- Division Ornamental Plants
- Division Vegetables, Roots and Tubers
- Division Physiology and Plant-Environment Interactions of Horticultural Crops in Field Systems
- Division Protected Cultivation and Soilless Culture
- Division Postharvest and Quality Assurance
- Division Tropical and Subtropical Fruit and Nuts
- Division Temperate Tree Fruits
- Division Temperate Tree Nuts