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Influence of Phoma ligulicola on yield, and site factors on disease development, in Tasmanian pyrethrum crops

journal contribution
posted on 2023-05-16, 12:43 authored by Pethybridge, SJ, Hay, FS
Phoma ligulicola Boerema was isolated from diseased buds, and necrotic stem and leaf lesions in 24 pyrethrum fields approaching their first harvest in northern Tasmania. Despite the ubiquitous distribution of this pathogen, marked differences in disease severity were evident in several fields. A higher incidence of disease was noted in fields with a southerly exposure and low areas within fields than on sites with a northerly exposure and hill crests. In 52% of the fields surveyed, P. ligulicola was associated with reduced yields of pyrethrin (kg ha-1 active ingredient) of up to 100%.

History

Publication title

Australasian Plant Pathology

Volume

30

Pagination

17-20

ISSN

0815-3191

Department/School

Tasmanian Institute of Agriculture (TIA)

Publisher

CSIRO Publishing

Place of publication

Collingwood, Australia

Repository Status

  • Restricted

Socio-economic Objectives

Horticultural crops not elsewhere classified

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