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|Woolly apple aphid : interactions within an orchard system / by Frances Fitzgibbon.
|FitzGibbon, Frances, 1954-
|Dept. of Crop Protection
|This thesis is concerned with the biology of Eriosoma lanigerum (WAA) and its parasitoid (Aphelinus mali), the impact of the pest on the crop and the effects of pesticides used routinely in South Australian orchards on both woolly apple aphid and the parasitic wasp. The study identifies current management practices of apple growers in South Australia. Aspects of the biology of WAA and A.mali are examined. Work is also done on the toxicity against WAA and A.mali of insecticides used in the control of codling moth and phytophagous mites. The effects of WAA infestation on the growth of young trees are investigated. The seasonal activity of WAA on mature trees is determined over a two season period.
|Thesis (Ph.D.)--University of Adelaide, Dept. of Crop Protection, 1997
|Woolly apple aphid Control South Australia.
Aphelinus mali South Australia.
Orchards Diseases and pests Control South Australia.
|Errata and addenda attached.
Bibliography: leaves 195-211.
xviii, 211 leaves : ill. ; 30 cm.
|This electronic version is made publicly available by the University of Adelaide in accordance with its open access policy for student theses. Copyright in this thesis remains with the author. This thesis may incorporate third party material which has been used by the author pursuant to Fair Dealing exception. If you are the author of this thesis and do not wish it to be made publicly available or If you are the owner of any included third party copyright material you wish to be removed from this electronic version, please complete the take down form located at: http://www.adelaide.edu.au/legals
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