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	Provedor de dados Organic Eprints (3) Autor Dreyersdorff, Gerit (3) Karise, Reet (3) Mänd, Marika (3) Kaart, Tanel (1) Kuusik, Aare (1) Muljar, Riin (1) Smagghe, Guy (1) Williams, Ingrid (1) Mais... Palavra-chave Protection (3) Quality (3) Crop health (2) Crop husbandry Biodiversity and ecosystem services Crop health (1) Tipo do documento Conference paper, poster, etc. (2) Journal paper (1) Ano 2015 (2) 2014 (1) País Germany (3)		Ordenar por:  Relevância Autor Título Ano Registros recuperados: 3 Primeira ... 1 ... Última Kimalaste efektiivsus biotõrjepreparaatide siirutamisel sõltub konkureerivatest toidutaimedest Organic Eprints Dreyersdorff, Gerit; Karise, Reet; Mänd, Marika. Sünteetiliste taimekaitsevahendite laialdane kasutamine ning nendega kaasnev võimalik negatiivne mõju keskkonnale ja inimeste tervisele on tänapäeva põllumajanduses üks kõige rohkem muret tekitav teema. Aedmaasika (Fragaria x ananassa Duch.) kui ühe maailmas enim kasvatatud marjakultuuri suurima kahjustaja, seene Botrytis cinerea Pers. põhjustatava hahkhallituse tõrjumisel kasutatakse praeguseni kõige sagedamini sünteetilisi fungitsiide. Arvestades nende kasutamisega seotud võimalikke probleeme, näiteks pestitsiidijääkide kogunemist viljadesse ja resistentsuse teket seenhaiguste suhtes (Diánez jt., 2002; Mommaerts jt., 2011), püütakse järjest enam leida võimalusi, kuidas asendada keemiline tõrje biotõrjega. Biopreparaadid on sageli kallid ja nende... Tipo: Conference paper, poster, etc. Palavras-chave: Crop health; Quality; Protection. Ano: 2014 URL: http://orgprints.org/28619/1/Dreyersdorff%20etal%202014.pdf Sublethal effects of kaolin and the biopesticides Prestop-Mix and BotaniGard on metabolic rate, water loss and longevity in bumble bees (Bombus terrestris) Organic Eprints Karise, Reet; Muljar, Riin; Smagghe, Guy; Kaart, Tanel; Kuusik, Aare; Dreyersdorff, Gerit; Williams, Ingrid; Mänd, Marika. Kaolin is an inert material with a broad range of applications, e.g. as an insecticide and as a filling substance in the formulation of biopesticides. Hence, bees that dispense biopesticides to the field in the context of entomovectoring are exposed to elevated risks because of sideeffects of those products. Here, we investigated with use of bumble bee workers of Bombus terrestris L. the lethal and sublethal effects of (i) pure kaolin, (ii) the biofungicide Prestop-Mix containing the parasitic fungus Gliocladium catenulatum and kaolin and (iii) the bioinsecticide BotaniGard containing the entomopathogenic fungus Beauveria bassiana and compared with wheat flour powder that we considered safe for bumble bees. As the most important result, treatment with... Tipo: Journal paper Palavras-chave: Crop health; Quality; Protection. Ano: 2015 URL: http://orgprints.org/28624/1/Karise%20etal%202015.pdf Kimalaste õietolmu korje sõltuvalt aedmaasika kasvatustehnoloogiast Organic Eprints Dreyersdorff, Gerit; Karise, Reet; Mänd, Marika. Strawberry is a fruit crop grown worldwide. There are two main strawberry production systems: open fields and protected cultures (greenhouses or high tunnels). Growing strawberries under high tunnels has many advantages such as protection from different weather conditions, but also disadvantages such as lack of pollinators. The aim of this study was to investigate whether additional pollinators (bumble bees) visit strawberry flowers at different rate under high tunnels compared to open fields. Field experiment was performed to collect and analyze bumble bee corbicular pollen from hives located under high tunnels and open fields. We found that bumble bees under high tunnels gathered more pollen from plant species (strawberry and white clover) present... Tipo: Conference paper, poster, etc. Palavras-chave: Crop husbandry Biodiversity and ecosystem services Crop health; Quality; Protection. Ano: 2015 URL: http://orgprints.org/28628/1/Dreyersdorff%20etal%202015.pdf Registros recuperados: 3 Primeira ... 1 ... Última

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