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|Title: ||Preliminary investigation of the diseases of willows (Salix spp.)|
|Author: ||Mortlock, C. T.|
|Degree: ||Master of Agricultural Science|
|Institution: ||University of Canterbury|
|Date: ||1971 |
|Item Type: ||Thesis|
|Abstract: ||Willows were introduced into New Zealand by the early
European settlers (van Kraayenoord, 1968a). Several species
and hybrids have become naturalised and are usually found
growing by riverbanks or in other moist situations.
The use willows and poplars to control erosion on the steep country and highly erodible soils frequently found in New Zealand, was first implemented during the early days
of settlement of the Colony (van Kraayenoord, 1968a).
Willows now play a significant role in erosion control,
particularly in the South Island catchments, the central
North Island pumice country and East Coast North Island
papa country. With the extensive use of willows in riverbank and
erosion control New Zealand, the disease factor could play
a significant role, especially in those areas where planting
of a single species has been adopted. The main object of this investigation was to study stem
and leaf diseases of Salix spp. incited by micro-organisms and
may be summarised this:-
(1) To carry out a survey of the extent and severity
of the disease factor in New Zealand.
(2) To isolate, study in culture and prove the
pathogenicity of organisms considered important
in the death and dieback of willows.
(3) To describe and identify the causal organisms.
(4) To determine if possible, factors influencing
the spread and degree of infection of the
|Supervisor: ||McNabb, R. F. R.|
|Persistent URL (URI): ||http://hdl.handle.net/10182/4419|
|Appears in Collections:||Department of Agricultural Sciences|
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