Control of viruses infecting grapevine

Area of Science:

• Viticulture
• Plant Pathology
• Agricultural Entomology

Background:

• Grapevines are valuable, vegetatively propagated fruit crops susceptible to numerous viruses.
• Sixty-four grapevine viruses are known, with significant economic impact from leafroll, rugose wood, and infectious degeneration diseases.
• Viral diseases are transmitted by vectors such as mealybugs, scale insects, and dagger nematodes.

Purpose of the Study:

• To review current control measures for major grapevine viral diseases.
• To emphasize strategies for producing virus-free propagation material.
• To discuss vector management and the development of virus-resistant grapevines.

Main Methods:

• Review of scientific literature on grapevine virus control.
• Analysis of sanitation, diagnosis, and certification for clean stock production.
• Evaluation of cultural, biological, and chemical methods for vector management.
• Examination of genetic engineering approaches for grapevine resistance.

Main Results:

• Effective control requires integrated strategies combining clean stock production, vector management, and resistant cultivars.
• Sanitation, robust diagnostics, and certification are crucial for virus-free propagation material.
• Integrated vector management (cultural, biological, chemical) is essential for limiting virus spread.
• Genetic engineering offers a promising avenue for developing resistant grapevine varieties.

Conclusions:

• A multi-faceted approach is necessary to manage grapevine viral diseases effectively.
• Continued research in diagnostics, vector control, and breeding for resistance is vital.
• Sustainable management practices are key to ensuring vineyard profitability and grape quality.