Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 8 of 8 for “"ANZSRC::070308 Crop and Pasture Protection (Pests, Diseases and Weeds)"”.
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The influence of environment, season, plant growth stage and herbicide formulation the activity of glyphosate applied to Lolium perenne
The behaviour and efficacy of glyphosate (as Roundup) applied to Lolium perenne L. cv. Grasslands Ruanui, and the influence of environment, season, plant growth stage and herbicide formulation has been studied. A preliminary investigation was conducted in controlled environment conditions to …
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Mode of action of organosilicone surfactants in enhancing the performance of Triclopyr herbicide
… selected on the basis of radio labelled uptake and translocation studies. Five surfactants which significantly promoted uptake without major reductions in translocation of the triclopyr ester were identified; three organosilicone surfactants (Dow Corning 57, Dow Corning X25152 and Silwet L77), …
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The role of genomic islands in virulence of Pectobacterium carotovorum subspecies brasiliensis on potatoes
… the taxonomic distance between these two species and that only some strains of P. carotovorum subsp. carotovorum are able to cause blackleg, it was hypothesised that the capacity of P. carotovorum subsp. carotovorum to invade potato stems and elicit blackleg may have evolved through independent …
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Studies of the toxicity and phytotoxicity of two soil applied granulated systemic insecticides
Control of aphids on agricultural crops can be obtained by various cultural practices, but insecticides figure prominently in most programmes aimed at obtaining economic control of aphid species which are persistent virus vectors. A recent advance in insecticide formulations has been the …
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Understanding pasture performance: the interaction between perennial ryegrass and viruses
In New Zealand livestock-based agriculture is an essential component of the economy, and at the very core of the majority of livestock-based farming systems in New Zealand is a pasture comprised of perennial ryegrass (Lolium perenne L.). Therefore, the productivity and profitability of livestock …
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Field assessment of a sex attractant for control of grass grub, Costelytra zealandica (White)
… season of the grass grub beetle, Coatelytra zealandica (White), an attempt was made to suppress populations on small scale field plots by mass trapping male beetles using simple water traps baited with the synthetic sex attractant, Durez 12687. Populations were monitored before, during and after …
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The structure of global invasive assemblages and their relationship to regional habitat variables: converting scientifically relevant data into decision relevant information
… on the premise that the risk of invasion by crop pests into new areas can be predicted by analysing regional insect pest assemblages (also known as pest profiles). Regional pest assemblages comprise the presence or absence of recognised pest species in each region of the world. The analysis …
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Stakeholder perspectives on the giant African land snail and its spread in Samoa : a dissertation submitted in partial fulfilment of the requirements for the Degree of Master of Applied Science in International Rural Development, Lincoln University
The Giant African Land Snail (Achatina fulica Bowdich) is native to East Africa and occurs in a large number of countries around the world. All of the countries in which it is established have tropical climates with warm, mild year round temperatures and high humidity. The snail has several …