![]() Related: 25 Beautiful Flowering Succulents To Grow Indoors (With Pictures) How to Get Rid of Mold on Succulents-Organic and Inorganic Methods Their foliage turns yellow and starts rotting as the infection progresses.īotrytis cinerea mycelial growth on new buds of the rose plant Photo Credit The infected succulent plants appear gray due to the covering spore bodies. Damp and cool weather conditions favor the disease development, and windy weather spreads the grayish spore masses over large distances and other plants. ![]() The causal agent of this disease is Botrytis cinerea. Grey mold is a fungal disease and infects succulents during their active growing season. Scale insect infestation on Aloe plant with heavy excretion of honeydew Photo Credit What is Gray Mold? These sap feeders cannot digest the nutrients completely absorbed from plant tissues and excrete them as waste wherever this sticky material attracts the growth of black mold fungus or decomposers. Honeydew is a sweet, sticky material from the digestive system of sap-sucking insects when they feed on plants. The name ‘sooty mold’ comes from the dark thread-like growth of the fungal bodies or mycelium resembling a soot layer.Ī severe black sooty mold infestation on the host plant, while the white powdery creatures are aphids. They do not cause any harm to host plants residing in them but block the sunlight absorption process, ultimately reducing the efficiency of photosynthesis and plant health. These fungal species accumulate over honeydew deposits and flourish.īlack mold fungal species are decomposers and feed on the decomposed honeydew molecules as nutrition. These sticky materials are secreted by piercing-sucking insect pests, such as aphids, whiteflies, mealybugs, and scale insects, and attract the fungal species of Capnodium, Fumago, and Scorias genera. Sooty mold is a black-colored fungus that grows on plant or leaf surfaces covered with honeydew (sticky substances). Related: 25 Beautiful And Easy To Grow Purple Succulents For Homes & Offices What is Sooty Mold? These fungal spore masses spread to other plants during the wind or watering and can destroy the entire succulent garden. It remains on the leaf surfaces, penetrates the plant tissues through infection peg, and interrupts food-making. This fungal pathogen infects the young succulents more poorly than the older and established ones. Note: Powdery mildew on succulents occurs in humid environments with dry soil conditions. It is because these plantations have poor air circulation in highly humid environments. Therefore, the disease occurrence is more in dense plantations compared to well-spaced perennials. Podosphaera xanthii pathogen requires higher humidity levels instead of wet leaf surfaces for spore germination. This powdery mildew on succulents occurs when weather and growing conditions are warm and dry. In spring perennials, powdery mildew fungus negatively impacts the leaf and flower buds (preventing the opening of buds). Note: The causal agent of this disease is Podosphaera xanthii, and this fungal agent has a broad host range, including fruit trees, grasses, vegetables, and ornamental plants (roses, spring perennials, and succulents). These spore masses (powdery coating) also cover the stem and leave, causing the distorted appearance of plants. On infected plant surfaces, this disease appears as white patches of powdery mildew spores like talcum powder.Īs this disease progresses, these patches turn into yellow or brown spots, ultimately black. Powdery mildew disease widely occurs on succulents because this fungus thrives in similar conditions as these plants. What is Powdery Mildew?Ī severe powdery mildew infection on cucumber leaves Photo Credit Let’s learn more about these diseases, their causal factors, and how to get rid of them successfully. Powdery mildew, sooty mold, grey mold, anthracnose, and leaf spots are common ones on most indoor and outdoor succulents. Mold on succulents is easy to treat with organic and inorganic treatments (synthetic fungicides). Mold occurs due to poor aeration and improper watering. They taint the beauty of rosettes and cause stunted growth. Fungal infections lead to defoliation if left untreated, thus encouraging the invasion of common houseplant pests. These fungal diseases deteriorate the health of your plants, covering the entire plant. These images only serve for inspiration and cannot be copied (images or the designs) for personal use. Healthy and succulent container garden free from insects, pests, and fungal diseases Photo Credit Photo Disclaimer – Images used in this article are owned by the respective individuals, artists, or other parties who post on their private social media accounts.
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