Caused by a Pseudomonas sp. dieffenbachiae. If the leaf margins of your Anthurium plant turn brown, the plant is receiving too much sunlight. You might encounter scale and mealybugs on your Anthurium insigne, as well as some bacterial leaf spot. Spotted leaves occur when fungal spores in the air find a warm, wet, plant surface to cling to. These plants, wh ich belon g to Fungal and bacterial diseases, including bacterial blight, root rot, stem rot, and fungal or bacterial leaf spots, are the biggest problem for anthuriums. BACTERIAL DISEASES OF ANTHURIUM, DIEFFENBACHIA, PHILODENDRON, AND SYNGONIUM Species of Anthurium, Dieffenbachia, Philodendron, and Syngonium are popular foliage plants cultivated in interiorscapes of homes, offices, and malls throughout the world. Figu re 1. A Pseudomonas sp. Black rot on ornamental kale is caused by X. campestris. Brown leaf margins and leaf tips. Anthracnose | Bacterial blight | Bacterial leaf spot | Bacterial wilt | Nematode decline | Leaf cutting ants | Snails and slugs. IJSEM list: Anonymous. Int J Syst Evol Microbiol 2000; 50:235-246. Common Problems with Anthurium insigne. is reported from Guadeloupe and Martinique as a new pathogen of the leaves and spathe of anthurium. Xant homonas leaf spot or bl ight of di eff enbachia. How to Get Rid of a Xanthomonas Leaf Spot on a Dieffenbachia. Bacterial Wilt. nov., a new phytopathogenic bacterium which causes bacterial leaf-spot of anthurium. If you notice the leaf veins on your anthurium yellowing and then the entire leaf changes to a brownish-bronze color and although the plant is receiving enough water it’s wilting, you have a problem with bacterial wilt. This new bacterial disease is presently wide spread and constitutes a serious limiting factor for commercial anthurium … Bacterial Leaf Spot of Anthurium (Anthurium spp.) The bacterial leaf-spot of anthurium emerged during the 1980s, in the French West Indies and Trinidad. If new flowers appear but they remain green, the Anthurium is receiving too little light, so place it somewhat closer to the window. Pest & Diseases of Anthurium in the Caribbean. Bacterial leaf spot/ blight (Acidovorax anthurii) is a bacterial pathogen of anthurium. Bacterial leaf spot and blight of Araceae, including Dieffenbachia, Anthurium, Philodendron, and Syngonium is caused by X. axonopodis pv. The bacterium caused a vascular disease characterized by black necrotic spots surrounded by greasy margins and a bright chlorotic halo on leaves or a violet halo on the spathe. Int J Syst Evol Microbiol 2000; 50:425-426 In this case, place the plant about a meter further away from the window. Anthracnose. Notification that new names and new combinations have appeared in volume 50, part 1 of the IJSEM. Acidovorax anthurii sp. in the French West Indies P. Prior. Fungal problems are best prevented by avoiding over-watering; fungicide might be needed to treat serious problems. Notification list. They are pretty pest resistant otherwise, but let’s go over what you can do if you see any of these three issues on your plant. The causal agent of bacterial leaf spot of English ivy and other Araliaceae species is X. hortorum pv. Anthracnose is caused by the fungus Colletotrichum gloeosporioides.It is of minor significance to the anthurium industry in the Caribbean. Fungal leaf spot can be found in your outdoor garden as well as on your houseplant. Institut National de la Recherche Agronomique, Station de Pathologie végétale, de Phytoecologie et de Malherbologie, BP 1232, 97184, Pointe‐d‐Pitre Cedex, Guadeloupe, FWI. Corresponding Author. 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