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Drosophila suzukii control using Kaolin, lime and rock dusts.

Strack, Timo; Cahenzli, Fabian and Daniel, Claudia (2018) Drosophila suzukii control using Kaolin, lime and rock dusts. Paper at: 18th International Conference on Cultivation Technique and Phytopathological Problems in Organic Fruit-Growing, Hohenheim/Germany.

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Summary

The Spotted wing drosophila, Drosophila suzukii, is an invasive pest in Europe and North America, infesting various soft-skinned fruits. Because D. suzukii attacks ripening fruits shortly before harvest, only insecticides with short pre-harvest intervals can be applied. Alternatively, kaolin, lime and rock dusts are non-toxic to non-target organisms, but the whitish coating on fruits potentially deters oviposition of D. suzukii. Therefore, we tested oviposition deterrence and insecticidal effects of such substances. Female D.suzukii flies were exposed to treated blueberries under laboratory conditions for 24 hours. Kaolin, clinoptilolite, clinoptilolite + Heliosol (pine-oil based wetting agent) and calcium carbonate significantly reduced oviposition, whereas calcium hydroxide only had a marginal effect and diatomaceous earth had no significant effect. None of the tested products had an insecticidal effect. Kaolin, lime and rock dusts are therefore a promising tool to reduce damage of D. suzukii in soft-skinned fruits.


EPrint Type:Conference paper, poster, etc.
Type of presentation:Paper
Keywords:Drosophila suzukii, Kirschessigfliege
Subjects: Crop husbandry > Crop health, quality, protection
Research affiliation: Switzerland > FiBL - Research Institute of Organic Agriculture Switzerland > Plant Protection and Biodiversity
Deposited By: Daniel, Dr. Claudia
ID Code:33700
Deposited On:22 Aug 2018 12:04
Last Modified:22 Aug 2018 12:05
Document Language:English
Status:Published
Refereed:Peer-reviewed and accepted

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