Staff Publications

Staff Publications

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    'Staff publications' is the digital repository of Wageningen University & Research

    'Staff publications' contains references to publications authored by Wageningen University staff from 1976 onward.

    Publications authored by the staff of the Research Institutes are available from 1995 onwards.

    Full text documents are added when available. The database is updated daily and currently holds about 240,000 items, of which 72,000 in open access.

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Record number 525508
Title Spintbestrijding met moderne insecticiden in de Aalsmeerse bloementeelt
Author(s) Marle, G.S. van
Source University. Promotor(en): W.K.J. Roepke. - Amsterdam : Kinsbergen - 127
Publication type Dissertation, internally prepared
Publication year 1951
Keyword(s) plantenplagen - sierplanten - trombidiidae - tetranychus urticae - bryobia - gewasbescherming - insecticiden - acariciden - mollusciciden - plant pests - ornamental plants - plant protection - insecticides - acaricides - molluscicides
Categories Agricultural Acarology / Insecticides, Acaricides / Floriculture
Abstract Some insecticides were tested in systematic trials or on a small scale, especially for ovicidal action, residual activity in relation to life cycle of red spider mite (Tetranychidae), herbicidal activity and method of application. Practical experience with them was gained with flowers under glass.

Azobenzene was a good acaricide and was also herbicidal but could in practice only be used on carnations. Parathion was satisfactory, except as a powder, if used repeatedly; resistance to it arose once just before the trial ended. Sodium selenate, a systemic insecticide, was efficacious for carnations; excess stunted growth. The selenate spray damaged roses. Soil treatment was satisfactory only in high doses. Pestox (bis(bisdimethylaminophosphonous anhydride)) had some effect on carnations and hortensias, and was transmitted through carnation plants. In practice an old remedy, spintspuit (mite spray), was effective but was laborious and raised risks from fungi. TEP (a tetraethyldiphosphate) was also tested.

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