Causal Agent

HVX

Hosts

Hosta Virus X Hosta, specially ‘Gold Standard ‘, ‘Striptease ‘, and ‘Sum and Substance ‘, but other common varieties are being reported infected in big numbers. While this disease does not kill plants, its chief risk lies in its test ability to spread prolifically. Home gardeners and some nurseries propagate hostas by dividing existing plants. This means of propagation and failure to recognize HVX symptoms on many varieties have led to the rapid scatter of the virus throughout the country.

Symptoms

Hosta Virus X affects different hosta cultivars in different ways, so it is impossible to give a authoritative Hosta Virus X description of symptoms. The most common ocular symptom is blue or green markings on a light bleached leaf. These markings normally follow the leaf veins and bleed out into surrounding tissue giving the plant a mottled appearance. The tissue often appears chunky, puckered, and of different thickness or texture that normally colored weave. Less common symptoms include dried, embrown spots and twisted, deformed leaves. It may be unmanageable to detect off color mottle on dark, solid colored leaves. Some green tissue will show light colored mottling along the veins, but it is often not equally pronounced as the markings on gold weave. Some infect plants will not develop symptoms for three to four years after becoming septic.

Growers should submit plants with fishy symptoms to the Plant Disease & Insect Diagnostic Lab for ELISA antibody testing. While enzyme-linked-immunosorbent serologic assay tests for Hosta virus X are not 100 percentage accurate, they represent the most practical testing procedure presently available and will detect the virus in most septic plants .

Control

There is no practical cure for this virus. The best way to prevent Hosta Virus X is to not grow infect plants. This virus is transmitted chiefly through cutting the plants. Contact of the infect plant ‘s sap with blackjack of a goodly plant will infect the new plant. This can happen whenever cuts are made and the instruments or hands are not disinfected afterwards. Tools should be dipped in 10 percentage bleach solution and hands washed thoroughly between working on each plant. Plants in pots may be simply disposed of or burned. Plants in the anchor should be dug carefully as to get as many roots as possible, and the descry should not be replanted until any remaining roots have died and rotted aside. Always avoid queerly spotted or mottled plants you find at nurseries. not all infected plants show visible symptoms, though, then if one plant in a group shows symptoms do not buy healthy-looking plants in the same group. If one has it, it is very possible some, and possibly all, of the others do .

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