Can virus-infected plants be cured?

Can virus-infected plants be cured?

• A. Yes
• B. No
• C. Sometimes
• D. Only with resistant varieties

Answer: (B)

Viruses in plants cause infections that spread through the plant and persist for its entire life. Unlike many pests, there isn't a chemical treatment or spray that will eliminate a virus once the plant is infected, because the virus hides inside the plant’s cells and relies on the plant’s own machinery to replicate. So, for a typical grower, a virus-infected plant isn’t curable. The practical approach is to prevent and manage. Remove and destroy infected plants to stop the source and potential spread, sanitize pruning tools and equipment to avoid moving the virus, and control the insect vectors (like aphids) that spread infections. Use virus-free propagation stock and certified material for new plantings, and choose resistant varieties when available to reduce the risk of new infections. There are advanced methods to produce virus-free plants from meristem tissue, but that isn’t a cure for plants that are already infected; it’s a way to start clean stock for future plantings. So, virus-infected plants cannot be cured in usual practice.

Viruses in plants cause infections that spread through the plant and persist for its entire life. Unlike many pests, there isn't a chemical treatment or spray that will eliminate a virus once the plant is infected, because the virus hides inside the plant’s cells and relies on the plant’s own machinery to replicate. So, for a typical grower, a virus-infected plant isn’t curable.

The practical approach is to prevent and manage. Remove and destroy infected plants to stop the source and potential spread, sanitize pruning tools and equipment to avoid moving the virus, and control the insect vectors (like aphids) that spread infections. Use virus-free propagation stock and certified material for new plantings, and choose resistant varieties when available to reduce the risk of new infections. There are advanced methods to produce virus-free plants from meristem tissue, but that isn’t a cure for plants that are already infected; it’s a way to start clean stock for future plantings.

So, virus-infected plants cannot be cured in usual practice.