![]() ![]() The bacteria known as Xanthomonas can infect most aroid species.Ĭontact with other infected plants or tools after pruning and harvesting will also spread the highly contagious disease. It’s an inexpensive way of using the drip irrigation technique in your house plants.Īnthurium plants grown close to other aroid species – such as dieffenbachia, spahtiphyllum, or aglaonema – may become infected with blight. Watering your anthurium plants by placing six ice cubes on the soil and allowing them to melt once per week keeps the leaves from getting wet. It’s important to keep the leaves dry in plants susceptible to bacterial diseases – like anthurium. Getting foliage wet during watering is a major contributor to leaf blight. In addition, bacteria spread easily across wet surfaces. ![]() Even harvesting flowers or taking cuttings can cause wounds that allow bacteria to enter. ![]() Bacteria may also enter the leaves if they become damaged during pruning or are punctured in any other way. The bacteria that cause leaf blight infect the plant by entering through the pores along the leaf edges. Flowers may become faded in color, and without treatment, the plant wilts and dies. Leaves develop yellow then brown spots and may take on a bronze appearance. Once bacteria infect your anthurium leaves, they spread quickly throughout the entire plant. In some cases, it may take months for plants to show symptoms as the bacteria multiply on the leaves. The amino acids found in the liquid provide food for the invading bacteria, which can then infect other nearby plants. Guttation droplets typically form during the night when temperatures are warm, humidity around the plant is high, and the potting soil is wet. These are known as guttation droplets, and they look like tiny drops of water forming on the leaf margins. Small sap droplets will also be present on the leaves where the bacteria enter. These lesions darken with age and eventually cause deformed leaves. ![]()
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