Jerusalem Artichoke Red Spot Disease: Control Methods and Key Technical Points

In prevention and control, the key lies first of all in prevention, to strangle the pathogen in the cradle. This requires us to improve the disease resistance of Jerusalem artichoke, for example: fertilize the Jerusalem artichoke, because only with sufficient nutrition will the Jerusalem artichoke grow strong and have strong resistance.

In addition, a ventilated and sunny environment is essential, as only this can reduce the probability of disease. Finally, if the Jerusalem artichoke unfortunately becomes diseased, isolate it promptly and prune off the diseased leaves and branches; in the early stage of disease, immediately spray a broad-spectrum fungicide, and this will generally cure it.

Causes of Jerusalem Artichoke Red Spot Disease

Actually, the Jerusalem artichoke is tenacious, but this is shown in its rhizome: as long as it is not exposed on the surface of the soil and the soil still has moisture, even if all the flowers and leaves above ground die, it can still tiller and sprout, gaining new life.

So in fact the flowers and leaves of the Jerusalem artichoke are also quite fragile, and it will still get diseased without good management. So what causes the Jerusalem artichoke to get red spot disease?

The reason is actually that some pathogens gradually recede with the low winter temperatures, and the pathogens slowly begin to spread with the spring wind and spring rain, infecting the host. This is especially true for Jerusalem artichokes grown in greenhouses, where high temperature and high humidity and poor air circulation are very favorable for the spread of pathogens.

Now that you know the causes of the Jerusalem artichoke's disease, friends will surely still feel at a loss. After all, pathogens cannot be observed with the naked eye, so how can you know whether there are pathogens in the wind and rain? Don't worry, the editor will now explain to everyone how to handle this and how to prevent and control it.