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 3 of 3 for “"ANZSRC::300409 Crop and pasture protection (incl. pests, diseases and weeds)"”.
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Control of the aphid vectors of plant virus diseases by the use of systemic intersections: Thesis submitted for the National Diploma in Horticulture N.D.H. (N.Z.)
… between the pathogen we now call a virus and micro-organisms He showed that the cause of tobacco mosaic virus disease could pass through a bacteria proof filter. His work was repeated by Beijerinck in 1898 who introduced his theory of a"contagium vivum fluidum'! Both he, and Baur in 1904, …
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Use of natural enemies to achieve biological control of the severe and persistent glasshouse pest, the potato-tomato psyllid : A thesis submitted in partial fulfilment of the requirements for the Degree of Doctor of Philosophy at Lincoln University
… cockerelli, is a serious pest of solanaceous crops. Several populations of TPP have become pesticide-resistant, increasing the need for alternative control options, such as biological control. However, biological control of TPP has remained challenging. The parasitoid Tamarixia triozae, has …
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The biological control of the red clover casebearer in New Zealand : A thesis submitted in partial fulfilment of the requirements for the Degree of Doctor of Philosophy at Lincoln University
Biocontrol of insect pests represents an important aspect of sustainable crop management that has potential to reduce the current reliance on chemical control measures. However, often the potential of all forms of biocontrol is undermined in contemporary productive systems and their resulting …