Garlic is a potent natural fungicide with high sulfur content. Soak the crushed garlic again in water (1 cup) for one day. If you continue to use this site we will assume that you are happy with it. Vicks VapoRub is a topical ointment. The first thing to do is to prune affected plant foliage, including flowers, leaves, fruits, and branches. The affected organs are covered in silk threads and feces. Note: This list is not all-inclusive. The adults lay the eggs during the first vegetation days. They spend the winter as larvae, inside the soil and have a generation once every 4-5 years. The symptoms are brown-black spots, variable in size, delimited by healthy tissues. Moderate temperatures (15-18 degrees Celsius) and a high humidity are perfect for this disease’s growth. Vinegar is a powerful fungicide, but care must be taken not to mix the concentration of the solution too strong. During a dry season, the damage can affect up to 60% of the entire crop. Thus, when combined with other pathogens, it can cause significant damage to the plant’s growth. The spots can unite and cover a large part of the limbs. Prevention and control measures: Blight and Leaf Spot in Sunflower (Alternaria helianthi). Mix 3 tablespoons neem oil to water (1 gallon). Mix water (1 gallon) and four tablespoons of vinegar and then apply this solution on the plant leaves. Remove diseased or dead stems and foliage to maintain your plants properly. Prevention and control measures: The disease appears during early spring and the first visible signs are yellow, circular shaped spots on the leaves. The fungus spends the winter on the vegetal residue located on the surface of the ground. The attack on the stem can be seen as elongated and thin spots. When attacking mature plants, the fungus grows on the lower parts of the stems, as a white mycelium felt. Although designed for cough suppression, its active ingredients,... 2. The young leaves have spots which vary in shape and size and which are surrounded by a brightly colored halo. Others include pawpaw, apples, melons, strawberries, lettuce, and potatoes. This fungus attacks the sunflower’s shoot system during every stage of the vegetation period. The colonies settle on the leaves or inside the small blooms. The insect a number of plants from the Asteraceae family, causes the most of the damage to the sunflower. Snakeroot extract. Sunflowers offer the gardener both beautiful yellow flowers and seeds that have many uses. Your email address will not be published. This has led to an enormous worldwide interest in growing sunflower plants. Thus, when combined with other pathogens, it can cause significant damage to the plant’s growth. As a result, you must know how to get rid of white fungus on plants to prevent re-infestation. On the superior side of the leaves bleached spots appear and on the inferior side of the leaves, a white mycelium fluff. We do not have information about the existence of this type of treatment. Have you noticed a white powdery film on plants around your home recently? A spray made with one part ammonia and seven parts water also helps to get rid sunflowers of bugs. As the disease evolves, the spots turn brown during summer time and black during autumn time. Then leave it to sit for two days. The adults lay the eggs during the first vegetation days. Apply a baking soda solution to kill plant fungus. Getting one will save you a lot of money and time you would have used to remove the fungus and stop its spread. Put plants in areas they will get enough sunlight. Watering plants can help to get rid of white fungus since dry conditions and high humidity are contributing factors. These spores are high in water content and can infect plants even in drier seasons than other fungal pathogens. Crops which have been early sowed can be the target of a destructive attack. On the mature leaves, the spots are angular and margined by veins. Spray this solution onto the affected plants. The attacked tissues turn brown and become dry, the leaves look wrinkled. Prevention and control measures: Downy Mildew of Sunflower (Plasmopara helianthi). Do not splash water directly on plants. Other studies have proved some anti-fungal activity in natural milk gotten from cow, goat, or ewe. Prune your plants often to reduce humidity and improve air circulation. The symptoms are brown-black spots, variable in size, delimited by healthy tissues. After the plant has grown at least 3-4 adult leaves, this pest will no longer be a problem. The attack on the sprouts leads to those sprouts coming off and rotting. This disease is very common among the sunflower crops and it can cause significant damage. Applying chemical treatments before and after blossoming, with. Powdered milk and spray this solution on the diseased plants twice every week. Finally, get fungi-resistant plant varieties. The leaves of the affected plants wilt and the plants fall on the ground.