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| Registros recuperados: 23 | |
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| 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 |
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| Karise, Reet; Muljar, Riin; Mänd, Marika. |
| Aedmaasikas on maailmas üks enam kasvatatavaid marjakultuure. Kuigi enamik aedmaasika Fragaria x ananassa sortidest on isetolmlemisvõimelised, aitab risttolmlemine kaasa suuremate ja kõrgema kvaliteediga viljade moodustumisele (Klatt jt., 2014). Puudulikult tolmeldatud õitest arenenud viljad on sageli ebakorrapärase kujuga ja väiksemad. Lisaks on hästi tolmeldatud viljad ka paremini värvunud, tugevama viljalihaga ning säilivad korjamisjärgselt kauem (Klatt jt., 2014). Aedmaasika põhiliseks kahjustajaks on hahkhallitus, Botrytis cinerea (Legard jt., 2000), mille tõrjumisel on sünteetiliste preparaatide kõrval osutunud efektiivseks ka mullaseen Gliocladium catenulatum. Selle seene eoseid ja hüüfitükke sisaldavat preparaati PrestopMix võib pritsida... |
| Tipo: Conference paper, poster, etc. |
Palavras-chave: Crop health; Quality; Protection. |
| Ano: 2014 |
URL: http://orgprints.org/28621/1/Karise%20etal%202014.pdf |
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| 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 |
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| Hokkanen, Heikki; Boecking, Otto; Cokl, Andrej; Cotes, Belen; Eken, Cafer; Karise, Reet; Krajl, Jasna; Maccagnani, Bettina; Menzler-Hokkanen, Ingeborg; Mommaerts, Veerle; Mänd, Marika; Smagghe, Guy; Söderlund, Niklas; Tuncer, Serdar; Veromann, Eve; Witzgall, Peter. |
| BICOPOLL and BICOPOLL-NET connect 12 research units from 10 European countries and autonomous regions into a concerted effort to develop and bring into practice improved methods of biocontrol and pollination services, using strawberry as the case study. BICOPOLL partners will use bees to (i) precision deliver biocontrol agents to the flowers of the target crops to provide control of diseases, (ii) improve the pollination of horticultural crops. |
| Tipo: Conference paper, poster, etc. |
Palavras-chave: Production systems Biodiversity and ecosystem services Crop health; Quality; Protection. |
| Ano: 2012 |
URL: http://orgprints.org/28629/1/Hokkanen%20etal%202012.pdf |
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| Muljar, Riin; Mänd, Marika. |
| The study was conducted in 2010 in five experimental areas of Tartu County. Honey bee hives were placed at the edge of strawberry fields at first bloom; each hive had a special dispenser attached containing the biofungicide Prestop Mix, which is a preparation of the parasitic fungus Gliocladium catenulatum. As the bees exited the hive through the dispenser, they were dusted with the Prestop Mix preparation and carried it to the strawberry field. Two treatments were established: 1) a bee-excluded untreated check (covered with exclusion cages), and 2) a bee-delivered Prestop Mix treatment. We compared the bee-disseminated treatment with the untreated check by counting the healthy and Botrytis-infected berries; we also compared strawberry varieties. Our... |
| Tipo: Conference paper, poster, etc. |
Palavras-chave: Biodiversity and ecosystem services Crop health; Quality; Protection. |
| Ano: 2011 |
URL: http://orgprints.org/28646/1/Muljar%20ja%20M%C3%A4nd%202011c.pdf |
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| Muljar, Riin; Mänd, Marika. |
| There is a need for more environmentally friendly plant protection methods, since the increasing use of agrochemicals has led to pesticide residues and resistance problems in the control of Botryrtis cinerea. An alternative to chemical spraying is to use bees as entomovectors to disperse biological control agents. Prestop Mix is a biofungicide that contains spores of the parasitic fungus Gliocladium catenulatum J1446, which has been successfully used in the control of B. cinerea. In 2010 we conducted a field experiment to study the efficiency of using bees in dispersing G. catenulatum in Estonian conditions. The study was carried out in two strawberry plantations of Tartu County, strawberry varieties were `Sonata` and `Polka`. Honey bee hives were placed... |
| Tipo: Conference paper, poster, etc. |
Palavras-chave: Biodiversity and ecosystem services Crop health; Quality; Protection. |
| Ano: 2011 |
URL: http://orgprints.org/28645/1/Muljar%20ja%20M%C3%A4nd%202011a.pdf |
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| Runno-Paurson, Eve; Hansen, Merili; Tein, Berit; Loit, Kaire; Jõgi, Kätlin; Luik, Anne; Metspalu, Luule; Eremeev, Viacheslav; Williams, Ingrid; Mänd, Marika. |
| Nowadays, organically produced products have become more popular than ever and interest in them is still growing fast. The early blight causal pathogen Alternaria solani has not been considered a great threat to potato in northern climate conditions in the past and has not been routinely sprayed against. During our study early blight was evaluated in 2010 and 2011 on the plants of a potato cultivar ‘Reet’ in an organic farming experiment. In our study, both growing seasons were very favourable for early blight development. Significant differences between the two cultivation technologies were found (F1,12 = 4.84, p = 0.048). In 2010, the area under disease progress curve (AUDPC) value was 303 on cover crop (CC) plots and 990 on CC + M (manure)... |
| Tipo: Journal paper |
Palavras-chave: Production systems Crop health; Quality; Protection Root crops. |
| Ano: 2014 |
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| Karise, Reet; Muljar, Riin; Mänd, Marika. |
| Mahepõllumajanduses on lubatud kasutada bakteritest, seentest ja viirustest valmistatud preparaate. Putukatõrjevahendina on laiemas kasutuses mullabakter Bacillus thuringiensis preparaat ning mullaseen Beauveria bassiana. Aedmaasika kasvatajatele on välja töötatud preparaat Prestop Mix, mis sisaldab mullaseene Gliocladium catenulatum Strain J1446 spoore ja mütseeli. See preparaat võitleb edukalt hahkhallituse vastu aedmaasikal ja aedvaarikal, samuti ka mitmetel köö- giviljadel ja isegi ilutaimedel. Taimedele või nende õitele kantavate preparaatidega puutuvad kokku ka paljud kasulikud organismid, näiteks tolmeldajad. Prestop Mix´i kandmiseks aedmaasika ja -vaarika õitele kasutatakse pulbri levitajatena just mesilasi: kimalasi või meemesilasi. Tarude... |
| Tipo: Conference paper, poster, etc. |
Palavras-chave: Crop health; Quality; Protection. |
| Ano: 2014 |
URL: http://orgprints.org/28620/1/Karise%20etal%202012.pdf |
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| Muljar, Riin; Karise, Reet; Mänd, Marika. |
| Hahkhallitus on aedmaasikal suuri saagikadusid põhjustav seenhaigus (Døving ja Mage, 2001; Williamson jt., 2007), mille tõrjumine keemiliste taimekaitsevahenditega on mahetootjale keelatud. Seetõttu on tekkinud vajadus alternatiivsete taimekaitsemeetodite järele, mis oleks loodust säästvamad ning sobiks ka kasutamiseks mahepõllumajanduses. Üheks selliseks alternatiiviks on entomovektortehnoloogia – biotõrje meetod, kus pulbrilisi biopreparaate viivad taimeõitele mesilaselaadsed putukad. Antud meetod sobib kasutamiseks õisi kahjustavate taimehaiguste ja -kahjurite tõrjel, kuna toitu (õietolmu, nektarit) otsides kannavad mesilased biopreparaadi täpselt aedmaasika õitele – see võimaldab vähendada preparaadikulu ning säästa keskkonda. Mesitarude lennuavadele... |
| Tipo: Conference paper, poster, etc. |
Palavras-chave: Crop health; Quality; Protection. |
| Ano: 2014 |
URL: http://orgprints.org/28622/1/Muljar%20etal%202014.pdf |
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| Registros recuperados: 23 | |
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