fungal problems with carolina cherry?

Asked November 25, 2016, 6:44 PM EST

Planning on planting the above species in the San Fernando Valley of Los Angeles, is the above issue significant since the location is quite dry? Thank you

Los Angeles County California cherry trees

3 Responses

Thanks for your question. Is the tree you're inquiring about a Carolina Cherry Laurel (prunus caroliniana)?

yes, that is correct

Great! Here's a link to a California resource describing it and its preferred environment. I have not been able to find any articles indicating a fungal problem in California, but will share this excerpt from a resource that is not university-related:

"Root and Crown Rot

Several species of the Phytophthora fungi infect the crowns and roots of Cherry Laurel and other plants, causing the leaves to wilt, become discolored and prematurely drop from the tree. On the trunks, a vertical streak or canker is usually visible, and beneath the bark a brown or dark-grey discoloration may appear. Phytophthora infections can also cause black or reddish sap to ooze from infected bark. The infected twigs and branches eventually die back and the entire tree may die if the infection is severe enough. Phytophthora fungi require warm, moist soils to infect your tree. Good drainage and proper watering is the most effective way to prevent infection, but applications of fungicides containing fosetyl-al can also provide preventative control."

It would seem that your area would be dry enough so that phytophthora fungi would not proliferate were they in the soil.

Hope this is helpful. Good luck!