Citrus canker is a bacterial disease that causes blemishes or cankers to appear on the leaves, stems and fruit of a citrus tree. It is a difficult disease to eradicated. It does not harm the fruit, but over time, can make the tree less productive. Grove owners do not like this disease because the fruit with unsightly blemishes can not be sold as fresh fruit. More information can be found in Wikipedia under citrus canker, or search the internet for more information.
Citrus canker
citrus canker,potato spindle disease...etc
in humans- tuberculosis,diphtheria,cholera,tetanus,typhoid in plants-citrus canker
The lemon is Citrus Limonia there are also many modern varieties but this is the original.Citrus canker
Florida
Sunlight causes this.
No. I have canker sores and have never kowingly given some one canker sores. Canker sores are not caused by the same thing that causes cold sores and as far as I know they are not contagious. But to be on the safe side avoid kissing this person until their canker sores go away.
An infection. Usually herpes simplex, (herpes 1) a virus. See herpes
the juice :( aka pee
There is no reason why they occur, but they are best treated with a "dab" on a cotton swab, by your physician with sulfur/hydrogen peroxide. It's painful, for a few moments, and the canker soars will "blister" a little --- but they'll be gone. I know --- I've had it done when I was younger and haven't canker soars since. Consult your physician.
To treat bacterial canker in apricot tree, you need to remove wilted limbs and cut out all cankered areas on the tree. An application of copper fungicide can help with this disease. However, many trees will be unable to recuperate after bacterial canker and need to be cut down. Bacterial canker causes dark spots to appear om the limbs and branches of a tree.