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The effects of foliar diseases and irrigation on root development, yield and yield components of wheat (Triticum aestivum L.)
(Lincoln College, University of Canterbury, 1985)
Studies were conducted on three field trials of wheat cv. Kopara to investigate the lack of compensation by later determined components of yield because of early disease constraints. The investigation was based on the ...
The influence of Hoki fishing vessels on Westland Petrel (Procellaria westlandica) distribution at sea
(Ornithological Society of New Zealand, 1997-09)
The Westland Petrel (Procellaria westlandica) population is thought to have increased significantly in recent decades, perhaps as a result of increased food in the form of waste from fishing vessels. A survey of Westland ...
Intraspecific variation in Microctonus hyperdoae and M. aethipopides (Hymenoptera: Braconidae); significance for their use of biological control agents
(Lincoln University, 1995)
Microctonus aethiopoides Loan and M. hyperodae Loan (Hymenoptera: Braconidae; Euphorinae) are parasitoids introduced to New Zealand to assist suppression of the lucerne pest Sitona discoideus Gyllenhal and the pasture pest ...
Tortricid moth pest management in Canterbury apple orchards
(Lincoln College, University of Canterbury, 1984)
Orchard practices and pest abundance were monitored at five sites over three seasons. Canterbury apple orchardists could produce high quality fruit with less than 1% damage using as few as four insecticide sprays per season. ...
A study of insect pests of brussels sprouts in Canterbury; their phenology and the resultant crop losses
(Lincoln College, University of Canterbury, 1982)
The relationships between insect pests and damage in Brussels sprouts were studied for three seasons in Canterbury. Each season the major pest species, white butterfly (Artogeia rapae L.), diamondback moth (Plutella ...
Studies of Alfalfa mosaic virus in subterranean clover red leaf virus
(Lincoln College, University of Canterbury, 1978)
AMV was shown to be transmitted by sap, aphids and through lucerne seed but not by Cuscuta. Virus source and test plant influenced transmission frequency. Sap-inoculation tests showed that twenty species of plants were ...
The reproductive seasonality and morphology of Argentine stem weevil Hyperodes bonariensis Kuschel (Coleoptera: Curculionidae) and the effect of host grasses on its pre-reproductive development
(Lincoln College, University of Canterbury, 1979)
In order to improve understanding of the phenology of Argentine stem weevil (Hyperodes bonariensis Kuschel), samples were collected at regular intervals from the field and the changes in their reproductive morphology ...
A study of the biology and population dynamics of Synanthedon tipuliformis (Clerck) (Lepidoptera: Sesiidae) in Canterbury, New Zealand
(Lincoln College, University of Canterbury, 1975)
The study covered the period August 1971 to February 1975 and was conducted in three blackcurrant plots. One plot comprised mature bushes that were pruned but not sprayed during the course of the study; the other two plots ...
The soil ecology of Serratia entomophila, A bacterial pathogen of the New Zealand grass grub, Costelytra zealandica (White)
(Lincoln College, University of Canterbury, 1989)
Serratia entomophila (Enterobacteriaceae) is a newly described species of bacterium, currently being developed as a biological control agent for the New Zealand grass grub Costelytra zealandica (White) (Coleoptera: ...
Understorey management for the enhancement of populations of a leafroller (Lepidoptera: Tortricidae) parasitoid (Dolichogenidea tasmanica (Cameron)) in Canterbury, New Zealand apple orchards
(Lincoln University, 1999)
This study investigated understorey management in Canterbury, New Zealand, apple
orchards for the enhancement of populations of Dolichogenidea tasmanica (Cameron)
(Braconidae) for leafroller (Lepidoptera: Tortricidae) ...