Information On Shot Hole Disease Treatment
Shot hole disease is a common problem with many fruits. There are several reasons why shot hole disease occurs: 1) improper pruning or cutting 2) poor growing conditions 3) pests 4) diseases 5) insects 6) other factors. When it comes to shot hole disease, there are two types of it: “Sporotrichosis” and “Brucellosis”. Sporotrichosis is caused by a fungus called Phytophthora infestans.
Brucellosis is caused by bacteria, Brucella abortus. These organisms cause brucellosis. The most common symptoms of both are yellowing of the affected fruit and small spots (bubbles). The infected fruit may have a foul odor and taste when cut open. Sometimes these bubbles burst and release spores which then spread to other parts of the plant causing infection in other plants nearby. Other times, the fruit may not develop any symptoms at all. In either case, the fruit will eventually fall off and rot from lack of water.
The most common treatments for shot hole disease include: 1) removing infected trees; 2) spraying fungicides on infected trees; 3) applying fungicide to the leaves of infected trees; 4) using insecticidal soap to kill aphids on diseased branches.
How To Treat Shot Hole Disease On Laurels
When it comes to treating shot hole disease, there are at least three ways to combat the fungal infection. The first way is manual. You can simply apply a fungicide containing thiophanate-methyl or metalaxyl to the leaves of the laurel tree once every 7 to 10 days during the spring and summer months. Make sure to follow all instructions on the package for correct dosages and intervals between each application.
You can also use a combination of both chemicals on your tree.
The second way to fight the advancing infection is to remove and replace the laurel tree altogether. The third way you can go about treating Shot Hole disease is to root graft the tree. This process will take anywhere from 5 to 10 years for a new plant to grow. When choosing this option, be prepared to wait a long time before you see any results.
Do not try to remove the infected tree and replant a new one in the same space without taking special safety precautions. Fungal spores from the dead tree can still be in the soil and you risk reinfecting the new tree. As always, make sure to thoroughly clean all of your tools after working on diseased plants.
Also, do not prune or cut any part of an infected plant and then move onto another plant. This can spread the pathogen to other plants as well. Make sure to apply a fungicide or insecticide to any tools that have come in contact with infected plants. At the very least, wash your tools off with a strong disinfectant or a solution containing bleach before moving on to another plant.
Once you have moved past treatment and maintenance of Shot Hole disease of your laurel trees, you will need to maintain a healthy tree by providing it with sun, water and nutrients. If you are unsure of how to care for the tree, ask a local nursery or horticulturalist for advice on what you can do to keep it living a long and fruitful life.
Prevention Is The Best Medicine
The best way to prevent infection of Shot Hole disease is to practice good sanitation. This includes avoiding any movement of plant parts from infected plants to non-infected plants. It is also important to maintain a healthy, happy tree as these are more resistant to disease and fungal infestations. If you can keep the tree’s immune system strong, it will be able to fight off any harmful bacteria or viruses that may be attacking it.
Sources & references used in this article:
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Field reactions of plum cultivars to the shot-hole disease in southern Italy by G Bubici, M D’Amico, M Cirulli – Crop protection, 2010 – Elsevier
Shot-hole disease of Terminalia paniculata caused by Cylindrocladium quinqueseptatum-a new record. by C Mohanan, JK Sharma – European journal of forest pathology, 1985 – cabdirect.org
Yield reduction in almond related to incidence of shot-hole disease by ZPF Copper, ZPB Copper, ZPF Ziram, CPF Copper… – Plant disease, 1986 – apsnet.org
Thyrostroma carpophilum causing apricot shot-hole in Mexico by JM Tovar-Pedraza, V Ayala-Escobar… – … Plant Disease Notes, 2013 – Springer