Phytophthora and the fungi Armillaria, Phymatotrichum, and Xylaria can all cause devastating cases of root rot on fruit, nut, and landscape trees along with woody shrubs. Prevention is the best way to manage these diseases. Read on to learn the best ways to avoid these diseases and biocontrol agents and fungicides that may help with Phytophthora root rot.
If your apples have green dimples on them, they do not have a fungal disorder. Your fruit lack calcium and have apple cork spot. You can prevent this from happening in the future by liming your soil or spraying your trees with calcium. Read on to find out how to diagnose and prevent this physiological disorder.
Cotton root rot infects more than 2,300 plant species in the southwest, including apples, peaches, almonds, and most other fruit and nut trees. While the disease is usually fatal, there are some steps you can take that might save your tree. Read on at Gardener’s Paths to find what to do if your tree has this disease.
Wet soils encourage the development of fatal Phytophthora infections on fruit trees. However, you can take measures to prevent these infections. Read on to learn how to avoid collar and crown rot on your trees.
Since southern blight can infect hundreds of plants and live in the soil for years, it is a severe threat to apple and crabapple trees. Especially if you live in the south, learn how to prevent this disease and keep it at bay with rigorous sanitation.
The complex of apple black rot cankers, black rot on fruit, and frogeye leaf spot can cause serious losses on apples and crabapples. However, you can minimize the damage by removing dead tissue and mummified fruit. Read on to learn the details of controlling these diseases.
Is your apricot, peach, plum, cherry, or apple tree oozing a lot of gum? If so, it may be infected with the fungus Leucostoma that causes apricot gummosis and cankers. This fungus only infects stressed trees and enters through wounds, so you may be able to avoid it entirely. Read more about how to prevent this disease and ways to treat it.
Crown gall bacteria can infect apples, crabapples, peaches, pears, nectarines, apricots, and plums throughout the world – causing unsightly growths that can girdle the trees and kill them. Read on to find out how to prevent this soil-borne disease from attacking your fruit trees.
Bot rot (white rot) can result in cankers on the limbs and twigs and fruit rot that may not show until your apples or crabapples rot after storage. Fortunately, this fungus only infects trees that are stressed. Read on to learn how to prevent infections from occurring.
Although cedar apple rust won’t kill the junipers or apples and crabapples it infects, it can surely debilitate them. What can you do if you are faced with this complex disease? Read more now on Gardener’s Path to discover how to identify and learn how to control cedar apple rust on either of its hosts.
Do you have a white powdery coating on the leaves of your apple trees? Are trying to figure out what it might be? It’s likely powdery mildew and it needs to be managed. This disease is found in every region of the world that grows apples and damages leaves, limbs, fruit, and may even make an apple harvest impossible. Read on to learn how to recognize this pernicious disease and how to treat it.
Are your apples covered with flyspecks or large blotches? Fear not. While these diseases look horrible, they are superficial. You may even be able to rub them off! Read on for information on how to prevent and control sooty blotch and flyspeck.