S.C. Richardson
The area planted in apricots continues to increase slowly but steadily until at present there are just over 1000 acres planted — an increase of 200 acres in the last ten years.

Main disease, and the cause of the greatest tree mortality is Stone fruit blast Pseudomonas syringae.

More recently Hanthomonas pruni has been isolated on apricots but this disease is rare and of little significance.

Of the root disorders, Verticillium is the most prevalent, although trees frequently recover from the attack.

Armillaria mellea is sometimes encountered and is difficult to confine.

Very recently Peniophora sacrata was isolated from dying apricot trees but is not known to be common on this host.

Richardson, S.C. (1968). APRICOT GROWING IN NEW ZEALAND. Acta Hortic. 11, 37-38
DOI: 10.17660/ActaHortic.1968.11.5

Acta Horticulturae