What is this and what should I do? This is a Lapins Cherry on semi dwarf rootstock That was planted last year. Most of the Leaves appear healthy as well as the few blossoms it had this year. There are some buds that are dead and oozing, one of which is fairly low on the main trunk.
Bacterial Canker? (From The Ortho Problem Solver: “also known as bacterial gummosis or bacterial blast, attacks various fruit and nut trees but is most severe on cherry trees. This disease is caused by a bacterium (Pseudomonas syringae). During the fall, winter, and early spring, large quantities of bacteria-containing gum oozes from the cankers. Splashing rain spreads the bacteria to dormant buds, twigs, and branches. Infection occurs through wounds in the twigs and branches, and bacterial decay causes cankers to form. Bacterial activity decreases in summer, but slowly developing cankers may continue to grow until they encircle branches. By midsummer, the affected branches and limbs start to die back. With onset of cool, wet fall weather, bacterial activity increases again. This disease is most serious on young trees.â€
http://www.agf.gov.bc.ca/cropprot/tfipm ... canker.htm
Viron was right on the money here is a little more:
Cultural control:
1. Control insects and fungus diseases.
2. In large cankers, cut away all dead tissue until a sound surface is exposed. Treat the wound with a reliable disinfectant.
3. Follow cultural practices that produce a firm, stocky, moderate growth rather than a forced growth of soft wood.
4. Prevent trunk injury when possible. Winter injury can be prevented by shielding or whitewashing trunks.
not a lot of help for todays problem I agree
Randy
Idyllwild
simplepress
jafar
Marsha H
Viron
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