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Effects of autumn kaolin treatments on the rosy apple aphid Dysaphis planaginea (Pass.) and possible modes of action. Organic Eprints
Bürgel, K.; Daniel, Claudia; Wyss, Eric.
Autumn applications of the repellent processed-kaolin particle film (Surround ® WP) might be an alternative to the insecticides commonly used in spring to control the rosy apple aphid, Dysaphis plantaginea (Pass.) (Hom., Aphididae). To assess the mode of action and the impact of kaolin on autumn forms of D. plantaginea, trials were conducted in field cages and in open-fields in autumn 2003. Choice and no-choice experiments in field cages showed that winged aphids landed in significantly lower numbers and gave birth to significantly fewer females on kaolin-treated branches compared with the untreated control. In a first open-field trial, single applications at 10 different dates and with two different concentrations of kaolin were conducted after harvest to...
Tipo: Journal paper Palavras-chave: Crop health; Quality; Protection.
Ano: 2005 URL: http://orgprints.org/6056/1/Daniel%2D2005%2Dautumn%2Dkaolin.pdf
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