New Zealand Journal of Crop and Horticultural Science abstracts
Weed management practices in apple orchards and vineyards in the South
Island of New Zealand
FARHAD DASTGHEIB
CHRIS FRAMPTON
Soil, Plant and Ecological Sciences Division
and Applied Management and Computing Division
P. O. Box 84, Lincoln University
Canterbury, New Zealand
email: Farhad@inet.net.nz
Abstract A survey of weeds and weed management practices was
conducted during 1997/98 in apple orchards and vineyards of Canterbury and
Nelson/Marlborough regions of New Zealand. According to growers, mallow
(
Malva spp
.) ranked as the most widespread weed in apple orchards
of both regions. In vineyards, mallow was the most common weed in
Nelson/Marlborough and the second most common weed in Canterbury. Other
dominant weeds in Nelson/Marlborough included grasses, black nightshade
(
Solanum nigrum), fathen (
Chenopodium album), and redroot
(
Amaranthus retroflexus). In Canterbury, grasses, clovers, fathen, and
thistles were common. In almost all orchards knockdown herbicides were used but
the use of residual herbicides varied. The total number of herbicide
applications/year has increased in both regions over the past 10 years, but the
proportional use of residual herbicides has declined. Some other weed
management practices are used in orchards but a sound integration of these is
commonly lacking.
Keywords herbicides; Canterbury; Nelson; Marlborough;
viticulture; weeds
H99016
Received 19 April 1999; accepted 2 November 1999
PDF file of entire paper: medium quality (444K); (scanned from paper original: notes about this process)
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