WebAster Yellows. This disease is caused by a virus-like organism called a phytoplasma and is spread by sap sucking insects (notably leafhoppers). It isn’t usually fatal, but reduces vigor and can seriously affect the growth of carrot (most important), celery, lettuce, onion, tomato and a variety or ornamentals. WebFeb 2, 2024 · There are several kinds of fungal diseases that can infect hydrangeas, including anthracnose and Cercospora leaf spot. Cercospora is perhaps the most …
12 common apple tree diseases (and how to treat them)
WebStressed plants are more susceptible to disease and insects. Keep your plants healthy and watered. Get rid of infected plants as soon as they show symptoms of RRD. Don’t put … WebOct 24, 2024 · However, spots on hydrangea leaves can ruin the beauty and infect other shrubs too. Learn how to treat the hydrangea leaf spot disease and make your plant beautiful again. Leaf Spot Diseases on Hydrangeas. Leaf spotting on hydrangea is mostly caused by the fungus Cercospora and affects most of this family of plants. christine license plate meaning
How to Grow Hydrangeas - Bob Vila
WebAug 31, 2024 · Viral Diseases Hydrangea Ringspot Virus Hydrangea Mosaic Virus Tomato Ringspot Virus Fungal Diseases Botrytis Blight ( … WebQuick facts. Common name Pestalotiopsis dieback. Scientific name Pestalotiopsis funerea, P. guepini, P. sydowiana. Plants affected Many conifers and woody plants, including Chamaecyparis, Cupressus, × Cuprocyparis, Juniperus and Thuja. Main symptoms Shoots turn brown and die back, often from the tips. ‘Pinhead’-sized black fruiting bodies ... WebWitches' broom. Witches’-brooms occur on a number of conifers and deciduous tree species. They are caused by a number of factors that result in a great proliferation of shoots with short internodes that can look like a bundle of twigs or witch’s broom. In other cases they appear as a ball-shaped dwarf plant growing in a tree. christine libby obituary