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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 ...
Some aspects of the biology, population dynamics and economic status of Wiseana cervinata (Walker) (Hepialidae: Lepidoptera)
(Lincoln College, University of Canterbury, 1973)
Entomology, like many other biological disciplines has developed into a quantitative science in nearly all aspects of the subject. Insect ecology is no exception, and in fact, has probably received more attention recently ...
Population dynamics and pest assessment studies of grass grub (Costelytra zealandica (White), Melolonthinae) in the North Island of New Zealand
(Lincoln College, University of Canterbury, 1975)
Studies of the common grass grub (Costelytra zealandica (White)) covered two major aspects, population ecology and pest assessment. The object or these studies was to investigate the feasibility of developing models, ...
Growth, persistence and competition between strains of Rhizobium lupini schroeter
(Lincoln College, University of Canterbury, 1978)
Strains of Rhizobium lupini on Lupinus spp. and Ornithopus sativus (serradella) were tested for growth, persistence and competition in nodule formation in growth cabinets, under glass house conditions and in the field. The ...
Nitrogen nutrition of mycorrhizal pines
(Lincoln College, University of Canterbury, 1972)
Nitrogen has been central to many of these speculations regarding the function of mycorrhizas in tree nutrition and growth. Historically it was felt that mycorrhizas were more efficient in absorbing nitrogen from humus ...
Ecology of Coleophora spissicornis (Haworth) and C. frischella (Linnaeus) associated with Trifolium repens Linnaeus in Canterbury, New Zealand
(Lincoln College, University of Canterbury, 1975)
This thesis reports the first comprehensive ecological study on a population of Coleophora spissicornis and C. frischella infesting Trifolium repens. The study was conducted at Lincoln, New Zealand during the summer seasons ...