Volume 42 Number 1 Article 8 Pages: 28-30
Year 1988 Month 1
Title: Relative Susceptibility of Certain Peach Cultivars to Summer Infection of Leaf Curl
Authors: J. King, R.A. Norton and G.A. Moulton
Citation
Abstract:
Peach and nectarine trees planted at
Northwestern Washington Research
and Extension Center, Mount Vernon,
including some 40 different cultivars,
suffered an unusual infection of peach
leaf curl (Taphrina deformans) in the
summer of 1986. The infection oc
curred as a consequence of a severe
rainstorm on July 16, which resulted
in nearly Vib" of rainfall in a 24-hour
period.
The onset of the infection was
not anticipated and so no preventive
spray had been applied.
The range of
susceptibility shown by the different
cultivars (Table 1) thus gives a fair
indication of those cultivars with some
degree of natural resistance, at least to
summer infection under conditions
similar to those described above.
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