{"id":2577,"date":"2019-10-30T00:01:45","date_gmt":"2019-10-30T07:01:45","guid":{"rendered":"https:\/\/depts.washington.edu\/hortlib\/pal\/pal-question-309\/"},"modified":"2023-08-08T11:25:10","modified_gmt":"2023-08-08T18:25:10","slug":"diseases-that-affect-cyclamens","status":"publish","type":"pal","link":"https:\/\/depts.washington.edu\/hortlib\/pal\/diseases-that-affect-cyclamens\/","title":{"rendered":"diseases that affect Cyclamens"},"content":{"rendered":"

I am a collector of Cyclamens<\/i> and grow most of my collection in pots. I believe my C. purpurascens<\/i> are infected with Botrytis<\/i>, though I have not had this confirmed by any tests. Last year was particularly bad and I had to remove nearly every leaf from both my plants. This summer, as the new leaves emerged, I sprayed the leaves and surface of the grit with a sulfur solution, which seemed to dramatically reduce the infection rate. Now, the infection seems to be back. Can you suggest some methods of control? Do I have to have it confirmed first? I repotted them early this summer, and sterilized the pots and replaced the grit at that time. What else can I do?<\/strong><\/p>\n

What you have done to control Botrytis<\/i> is what is recommended by the Pacific Northwest Plant Disease Management Handbook<\/i>. It does indicate the Botrytis<\/i> can be seed-borne and grow systemically in the plant. Your real solution may be to obtain plants that are certified disease free.<\/p>\n

However in researching Botrytis<\/i> online, I found an article, “Botrytis Blight of Flowering Potted Plants” in Plant Health Progress<\/i>, from Plant Management Network International. This article was written by a researcher at Cornell University who suggested that Cyclamen<\/i> are also susceptible to Fusarium<\/i> wilt and that the symptoms are quite similar. Therefore, I do think it would be wise to take a sample of your diseased plants to a Master Gardener clinic for confirmation. The Master Gardener clinics in Thurston County can be found at their website<\/a>.<\/p>\n","protected":false},"excerpt":{"rendered":"

I am a collector of Cyclamens and grow most of my collection in pots. I believe my C. purpurascens are infected with Botrytis, though I have not had this confirmed by any tests. Last year was particularly bad and I had to remove nearly every leaf from both my plants. This summer, as the new leaves emerged, I sprayed the leaves and surface of the grit with a sulfur solution, which seemed to dramatically reduce the infection rate. Now, the…<\/p>\n

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