Do any insects or diseases affect daylilies?
Though daylilies are generally very low maintenance and are not bothered much by pests or diseases, occasional problems may occur. Under certain conditions, thrips and mites may feed on daylilies. Many people simply tolerate the occasional damage these insects do to daylily foliage and blossoms. Others choose to apply pesticides appropriately chosen. Orthene is effective in controlling thrips. Mites usually infest daylilies that are drought-stressed. Keeping your daylilies well-watered will usually keep mites at bay. Avoid using Kelthane, a common miticide on daylilies, as serious foliage damage to the daylilies will occur. Daylilies also are occasionally infested with foliage diseases. Two of the most common are leaf streak and bacterial leaf spot. Commonly available fungicides such as Dithane or Daconil are useful in controlling such diseases. None of these problems is so damaging to daylilies that special care is necessary. In most cases, even if you do nothing, your daylilies will
