[1] Unknown in stonefruit in California until detection in Sacramento and northern San Joaquin Valley in the spring of 2013.

[4]: 90 Copper[3] and mancozeb are recommended in California for almonds[2] and have served well elsewhere.

[3] Phage therapy has been heavily studied for X. pruni and some treatments have been very successful.

[5][6] Civerolo & Keil performed several experiments in the 1970s with Xanthomonas pruni phage showing that peach and apricot were protected by external applications of solution.

[2] Rotation or tank mixing is recommended to forestall resistance.