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Rhagoletis cerasi: Oviposition reduction effects of oil products

Daniel, Claudia (2014) Rhagoletis cerasi: Oviposition reduction effects of oil products. insects, 5, pp. 319-331.

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The European cherry fruit fly, Rhagoletis cerasi (L.) (Diptera: Tephritidae), is a highly destructive pest. Methods to control it are limited and alternatives are needed.Observations of cherry fruit flies suggest that females exert much effort to penetrate cherries at color change stage (from green to yellow) for oviposition. Therefore, the question arose as to whether a physical barrier on the fruit surface could reduce oviposition. The effects of different commercial horticultural oil products on R. cerasi oviposition were evaluated in a series of laboratory, semi-field and field experiments. In the laboratory experiments, the rate of successful oviposition on fruits treated with 0.25% v/v of the rapeseed oil product Telmion was significantly reduced by 90% compared to the untreated control. In semi-field experiments, deposits of 1% of rapeseed, mineral and paraffinic oil significantly reduced oviposition for up to 3 days. Semi-field experiments indicated that the oil products lose efficacy within 3 to 6 days after application due to degradation. Although treatments with the rapeseed oil product Telmion reduced infestation rates in an on-farm field experiment, the infested fruit clearly exceeded the level of market tolerance of 2%. Further research is needed to assess whether combinations of oil products, higher application rates and different formulations might improve field efficacy.

EPrint Type:Journal paper
Keywords:Diptera; Tephritidae; organic agriculture; oviposition; behavior; horticultural oil; mineral oil
Agrovoc keywords:
Subjects: Crop husbandry
Crop husbandry > Production systems > Fruit and berries
Crop husbandry > Crop health, quality, protection
Research affiliation: Switzerland > FiBL - Research Institute of Organic Agriculture Switzerland > Crops > Crop protection > Entomology
Switzerland > FiBL - Research Institute of Organic Agriculture Switzerland > Crops > Crop protection > Functional agrobiodiversity
Deposited By: Daniel, Dr. Claudia
ID Code:26505
Deposited On:26 Jun 2014 12:25
Last Modified:25 Nov 2020 07:43
Document Language:English
Refereed:Peer-reviewed and accepted

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