How do you control the potato leafroll virus?

Management strategies

1. Plant only certified or virus-tested tubers.
2. Remove all self-sown potatoes and solanaceous weeds.
3. Avoid planting new and seed potato crops near old, ware or processing crops.
4. Rogue (remove) infected plants showing virus symptoms from seed potato crops.

Who discovered potato virus?

When Johnson (1925) found that the sap of potatoes which were apparently healthy, or which showed only a faint mottle on the leaves, was able to infect tobacco and other plants, he made the first contribution to the recorded history of potato virus X .

Does potato virus Y infect potatoes?

Potato virus Y (PVY) is a plant pathogenic virus of the family Potyviridae, and one of the most important plant viruses affecting potato production.

What causes potato virus Y?

PVY is primarily spread by aphids, including green peach (Myzus persicae) and potato (Macrosiphum euphorbiae) aphids, as well as other species that migrate through the crop. PVY is transmitted non-persistently. This means when an aphid feeds on a PVY-infected plant, it picks up the virus within 1-2 seconds of feeding.

What does plum pox virus do?

When a host tree is infected by plum pox, the infection eventually results in severely reduced fruit production, and the fruit that is produced is often misshapen and blemished.

How is potato virus transmitted?

Potato virus Y, a damaging potato pathogen, can be transmitted between potato plants by aphid feeding, by wounding, or via tubers (mother to daughter plants).

What disease does potato virus Y cause?

The necrotic strains PVYN and PVYNTN both cause a veinal necrosis on tobacco; PVYNTN also causes a tuber necrosis in certain potato varieties. This necrosis is referred to as potato tubers necrotic ringspot disease (PTNRD).

How do you treat leaf roll virus?

There is no treatment. Tools used on vines should be disinfected with bleach to prevent spread of the virus. The only way to make sure that grapevine leafroll stays out of your vineyard is to use only certified, clean vines. Any vines you put in your yard and garden should have been tested for the virus, among others.

What is the potato leafroll virus?

Cause The Potato leafroll virus (PLRV) is transmitted by at least 10 species of aphids, in a persistent manner. Once an aphid acquires the virus, it can transmit it for life, but not pass it on to its offspring. The green peach aphid is the most important vector in our area.

How do you get leafroll virus?

By P. B. Hamm and C. M. Ocamb Cause The Potato leafroll virus (PLRV) is transmitted by at least 10 species of aphids, in a persistent manner. Once an aphid acquires the virus, it can transmit it for life, but not pass it on to its offspring.

How can PLRV be detected in potato leaves?

PLRV can be detected in potato leaves by serology, using commercial ELISA kits. However, the concentration of PLRV varies and, in plants grown at temperatures of ca. 30 C or in older plants, ELISA may not always detect infection. It is also difficult to detect PLRV by ELISA in unsprouted tubers ( Hill and Jackson, 1984 ).

What are the different types of potato viruses?

Six potato viruses are known to occur in seed potato stocks in North America. They are potato leafroll virus (PLRV) and the potato viruses A (PVA), M (PVM), S (PVS), X (PVX) and Y (PVY) (Shepard and Claflin, 1975 ).