Avoiding Fruit Tree Disease
Virtually any garden design can be improved by the inclusion of a fruit tree, or, if you have the space, a number of fruit trees. Fruit trees can produce the most amazing displays when in blossom and, of course, you have the advantage of it bearing edible fruit later in the year. If you are in the process of designing a garden and it includes a fruit tree, such as a plum tree, which produces pitted fruit it will be necessary for you to investigate ways in which to avoid disease as these types of tree are prone to be susceptible to disease.
Brown Rot is rather a common disease seen on fruit, especially fruit which has fallen from the tree and been left on the ground. This fruit tree disease can be rather difficult to eradicate as it is a fungus and as such produces a very large amount of spores. These spores are incredibly small and can travel a surprising distance and once it appears on fallen fruit it can quickly spread to the main plant and will, eventually, appear on the fruit still on the tree.
Fungus grows best in damp areas that do not have good air flow. The spores of fungus land on the area and quickly establish themselves and start producing more spores in a very short space of time. One of the best ways to protect your fruit tree from fungal infection is to prune it carefully.
Fruit trees should be pruned to create an open structure so that the fresh air can flow freely throughout the leaves and branches. Not only does such pruning help reduce the risk of fungal infection it can also ensure that the sunlight reaches all parts of the tree. By ensuring that all leaves get the maximum amount of sunshine helps to make the tree stronger and more able to withstand and fight off infection and disease.
As well as pruning our fruit tree to avoid fungal infection and disease it is extremely important to continually monitor it for any signs of disease. One of the most important things to remember is that you must remove, isolate and destroy (by burning) any part of the tree that appears to have fungus. It is also strongly advised that you clear up any fallen fruit as soon as you see it and do not allow it to stay on the ground to rot, that’s asking for trouble!
Of course there are many other fungal diseases which may infect your fruit tree, one of which is known as cytospora canker. Although fungal it’s appearance is greatly different to Brown Rot and appears on the branches rather than upon the fruit. Dark, soft, areas appear on the branch and a callous forms which oozes gum. The most common place for it to appear is in a wound that is not fresh.
Just like the treatment for Brown Rot the answer to cytospora canker is, again, pruning. It is incredibly important that you prune a fruit tree correctly. If it is done incorrectly you are simply inviting trouble as the wound will take far longer to heal and will be more likely to become infected. If a fruit tree is badly infected by cytospora canker the only option is to prune it back hard and hope for the best. Making sure that such pruning allows for the free flow of air and light will help speed up the healing process and therefore reduce the risk of fungal infection.
Brown Rot and cytospora canker are only two of several fruit tree diseases that can become something of a nuisance to any gardener, even the professionals can find themselves struggling. However the risk of infection can be vastly reduced by following the advice above. Obviously it is extremely important that you follow other tree care rules such as ensuring that your tree is supplied with sufficient water and nutrients but with just a little effort you can help your tree to grow strong and healthy.
