|
 Puccinia coronata
BiostatusPresent in region - Exotic
Article: McKenzie, E.H.C. (2008). Rust fungi in the subantarctic islands of New Zealand. Mycoscience 49: 1-10 Mycological Society of Japan.
Notes: The cosmopolitan “crown rust” is widespread throughout New Zealand, on a broad range of mainly introduced grasses.
Article: Dingley, J.M. (1969). Records of plant diseases in New Zealand. New Zealand Department of Scientific and Industrial Research, Bulletin 192: 298 p. Wellington:.
Notes: Cunningham, (1931a) stated that aecidiosori have not been collected in New Zealand and that the
rust is perpetuated by means of uredospores overwintering on grass hosts. He concluded that the
rust species consists of numerous forms separable by their reactions towards differential hosts.
Cruickshank (1956) found that there were 13 physiological races of Puccinia coronata f. sp.
avenae present in New Zealand; he investigated resistance of hybrid ryegrass strains to P.
coronata f. sp. lolii and found that short-rotation ryegrass is highly resistant to crown rust, whilst
perennial ryegrass is highly susceptible (Cruickshank, 1957b). Puccinia coronata can be
troublesome in oat crops in Canterbury (Wratt, 1956). It is very common in ryegrass throughout
New Zealand, sometimes making it unpalatable to stock (Cruickshank, 1957b; Latch, 1966a).
|