New Zealand Journal of Crop and Horticultural Science abstracts
Leafroller phenology and parasitism in Hawkes Bay, New Zealand,
canefruit gardens
J. G. CHARLES
The Horticulture and Food Research
Institute of New Zealand
Private Bag 92 169
Auckland, New Zealand
J. T. S. WALKER
V. WHITE
The Horticulture and Food Research
Institute of New Zealand
Private Bag 1401
Havelock North, New Zealand
Abstract Pheromone traps together with leaf and fruit samples
were used to measure the seasonal occurrence and relative pest status of three
species of leafrollers (Lepidoptera: Tortricidae) in two berryfruit gardens in
Hawkes Bay, New Zealand. The pheromone trap data detected slight differences in
the seasonal phenology of male flights between the two properties, but
reflected the relative pest status of larvae infesting leaves and fruit at only
one property. Numbers of larvae of the different species found in leaves, on
the other hand, were good predictors of pest status at harvest. Three species
of larval parasitoids (all Hymenoptera) were reared, and their seasonal
occurrence noted, but the data were inadequate to allow life-table compilation
or measurement of population regulation of their hosts.
Keywords Epiphyas postvittana; Ctenopseustis
obliquana; Planotortrix octo; Dolichogenidea tasmanica;
Glyptapanteles demeter; Goniozus sp.; pheromone traps; leaf
sampling
New Zealand Journal of Crop and Horticultural Science, 1996, Vol. 24:
123-131
0114-0671/96/2402-0123 $2.50/0 (c) The Royal Society of New Zealand
1996
PDF file of entire paper: medium quality (1534K); (scanned from paper original: notes about this process)
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