Begonias are fun to grow, yet not without their issues. One problem the grower may encounter is asteryellows on begonias. The following article contains information on how to identify a begoniawithasteryellows disease and asteryellows control. Main page. Plant. BegoniaAsterYellows Control TreatingBegoniaWithAsterYellows.How does the aster leafhopper become infected withasteryellows? Can begonias be in full sun? How do you identify an aster? Are Phytoplasmas bacteria? Is Miracle Grow good for begonias? Asteryellows is a disease that affects over 300 species of plants, including ornamentals such as aster, coneflower, zinnia, marigold, chrysanthemum, petunia, and snapdragon. Edibles affected include lettuce, carrots, tomatoes, and celery. Grasses and grains are also hosts. How do plants become infected withasteryellows? Asteryellows is spread from plant to plant by an insect called a leafhopper, specifically, the aster leafhopper (Macrosteles fascifrons also known as M. quadrilineatus) or six-spotted leafhopper. Asteryellows infects more than 300 plant species and deforms vegetation and flowers. Learn the symptoms and how to manage this disease now. Causes: Asteryellows is caused by phytoplasma bacteria that can affect up to 300 species of plants. Diagnosis and treatment: Asteryellows has no cure, so prompt diagnosis and removal are essential to prevent spreading to other plants. Because these plants grow in tropical and subtropical environments, begonias love humid and warm regions. These plants do best in warm and hot climates where temperatures are consistently above 60 degrees Fahrenheit. In USDA Zones 5 and colder, treatbegonias as an annual. AsterYellows is a disease caused by leafhoppers that results in spindly growth and yellow veins on young begonia leaves. Remove any damaged leaves or stems and treat plants affected by insect pests with a horticultural oil and baking soda mix. Another reason for yellowing your Begonias’ leaves is the lack of bright sunlight. This is because the lowlights limit the photosynthetic process of the leaves. Thus reducing the production of chlorophyll and in turn causing the leaves to turn yellow. Treating Mealybugs on Begonia. Early detection is the best treatment for a mealybug infestation of begonias. Isolate a potted plant at the first sign of infestation to prevent the spread to other plants. Spray the plant with a hose to knock the bugs from the plant. No treatment is available to save a plant infected withasteryellows. Asteryellows is best managed by removing infected plants from the garden to minimize spread. Management of the insect vector is not usually feasible in a home garden. Begonia plants are particularly susceptible to a range of diseases, many of which are caused by fungal and bacterial infections. Knowing the symptoms and treatments of these diseases can help gardeners to protect their begonias and keep their plants healthy and thriving. Tuberous begonias: Tuberous begonias are known for their vibrant flowers. They are usually treated as annuals or perennials in temperate climates. In ideal conditions, they can live for 1-3 years.
