Answers. Brown spots on ferns might also be a sign of pest or disease infestations. In cultivation, Christmas fern provides winter interest in woodland, shade, or native plant gardens, along walls, or on slopes. [Click thumbnail to enlarge.] This evergreen lustrous ornamental fern… Staghorn ferns (Platycerium species) are exotic, elegant and relatively disease-free. and disease … Homeowners strive to maintain healthy plant life in their gardens and landscapes, but oftentimes shrubs suffer casualties, or fall ill from disease for a variety of reasons. Ferns are not prone to many diseases, but watch for botrytis while the days are short. Diseased Japanese holly fern plants showed a variety of foliar symptoms and reduction in size. I’m not sure why they haven’t prospered. Cyrtomium fortunei, commonly called holly fern, has fronds that resemble holly branches. While holly is susceptible to several leaf diseases, the more common and more damaging diseases are root, root collar and stem invaders. 11 May, 2008 . The stiff, glossy, dark green fronds of holly-like leaflets with coarsely fringed margins add excellent texture to container plantings. Huge collection, amazing choice, 100+ million high quality, affordable RF and RM images. Mites can be damaging particularly on Japanese holly. Pests. Brown scales, caterpillars, and whiteflies are the biggest pest problems for Hardy Fortunes Holly. Question by quittae May 30, 2005. Plant surfaces must be completely covered with the fungicide to successfully prevent infection. Find the perfect holly fern stock photo. Very little research has been conducted on viral diseases affecting wild or cultivated ferns. Eventually, the infected leaves fall off the plant, leaving your holly bare and spindly. Fern reproduction is a two-stage process. Copper pesticides are considered preventative, not curative of plant diseases… The virus was transmitted by grafting, as well as through sp … If you give them the light and water they prefer, they’ll perform well for you for years to come. You'll be pleased to know that Japanese Holly Fern has no serious insect or disease … Banks and Slopes, Beds and borders, Foliage only, Ground Cover, Low Maintenance, Underplanting, Wildflower. The causal agent of the disease was determined to be a strain of Japanese holly fern mottle virus. Discard infected plants. Plant viruses have been reported to infect various fern species (3,4,9,10,13); however, only Cucumber mosaic virus (9) and a novel virus causing a disease of Japanese holly fern (Cyrtomium falcatum) (13) have been conclusively identified and characterized. This popular ornamental plant originated from Japan and is known by the common name as the Japanese holly fern . The ones that have done the best are the ones that receive more light and less attention. They sound like the spore cups which ferns produce for reproduction. Cyrtomium falcatum (Japanese holly fern) will reach a height of 1m and a spread of 1m after 5-10 years. Recommended soil pH is 6.1 to 7.8. Common identification markings can be found in the leaf structure, berries, blossoms, shape and size of the plant. Ferns are known for being light and airy, but holly fern (Cyrtomium falcatum) is an evergreen fern that can anchor a shady area with its glossy 3-foot fronds of leathery leaves. I killed several by overwatering them which led to disease. I have cut off all old leaves, for new growth to begin. Arachniodes simplicior 'Variegata' is an evergreen fern with short, creeping rhizomes. They are susceptible to spider mites, wet rot and some other common plant diseases. Leatherleaf fern, a popular cut foliage plant for use in flower arrangements, was found showing virus-like symptoms at a local nursery in Baton Rouge, LA. On plant Holly Fern 11 May, 2008; Featured on: ferns. Plant growth regulators are not recommended for Boston Ferns. This grey rot is usually associated with wet or humid conditions. I have only watered them about 4 times this year (although they have had some rain). Disease is most common in the summer. Common problems are overwatering, watering with softened water, and placing them in direct sunlight. Spore Cases Dark brown spots in a regular pattern on the underside of a fern leaf are usually spore cases. Cyrtomium falcatum, commonly called Japanese holly fern, is native to eastern Asia, India, southern Africa and Hawaii. I do not know where you are but our Holly fern is beginning to produce new fronds from tjhe base and I remove the older ones as a new one appears. Pioneers used the holly-like evergreen leaves of this fern to make Christmas wreaths, hence the name. Root rots include Phytophthora, and black root rot (Chadara elegans). On slopes, it helps to prevent erosion. No need to register, buy now! They are not harmful in the least. General Information ... No pests or diseases are of major concern. Popular for its hardiness and handsome foliage, this fern makes an excellent groundcover or border edging in shaded locations. Fruits and Vegetables. Wet spots . Keep fern cut to allow good air circulation and reduce disease development. Avoid overhead watering. It is an evergreen fern. Read about my favorite ferns here. They should be right at home in Savannah if watered when it gets dry. What is holly leaf blight? It is native to Japan, Korea and China. Phytophthora occurs when soils are poorly drained or … It will grow to about 18 inches tall with single plants spreading no more than 24 inches. An RNA virus has been found associated with diseases of Japanese holly fern (Cyrtomium falcatum) and leather leaf fern (Rumohra adiantiformis). To prevent leaf spot, prune holly bushes so that they have good air circulation and sunlight. Holly Fern: Problem is the leaves are turning yellow and brown.