ISHS Acta Horticulturae 47: II International Symposium on Flower Bulbs
BIOLOGY AND CONTROL OF XANTHOMONAS HYACINTHI IN HYACINTHS |
| Author: | W. Kamerman |
| Abstract:
Yellow disease, caused by the bacterium Xanthomonas hyacinthi (Wakker) Dowson, is the most important disease of hyacinths. The bacteria present in the bulb at planting can spread from the bulb into the leaves, and from early spring onward the disease can be dispersed in the field by rain and wind. In addition, machines used for the lifting and sorting of bulbs and knives used for scooping and scoring can spread the bacteria from diseased bulbs to healthy ones. Cultural methods in the field and special treatments during storage can reduce the spread of the disease considerably. Hot-air treatment of the bulbs during storage may kill the bacteria inside the bulbs. Preventive spraying of plants with a thiadiazole compound (TF 130) starting in early spring proved to give encouraging results. | |
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