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| Registros recuperados: 3.823 | |
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| Østergård, H.; Kristensen, K.; Jensen, J.W.. |
| Fifty spring barley varieties grown under organic as well as conventional growing conditions in experimental fields in four combinations of year and site were studied. The yield varied much within and between environments (years and sites) and systems. Further, the variation between varieties was substantially and it differed between different environments and systems. Associations between observed grain yield of these varieties and disease and growth characteristics assessed in the official conventional variety testing were compared between the organic and the conventional system. Using factorial regression analysis, the best model for predicting the observed grain yield each year from these characteristics the previous year was found. In this model, the... |
| Tipo: Conference paper, poster, etc. |
Palavras-chave: Crop health; Quality; Protection Regulation Breeding; Genetics and propagation. |
| Ano: 2005 |
URL: http://orgprints.org/8149/1/8149.pdf |
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| Marx, Dr. Peggy; Kühne, PD Dr. Stefan. |
| www.oekolandbau.de provided information about plant protection in organic farming. More than 500 pages with text and figures clear up about pest organism in agriculture, horticulture, fruit-growing, winegrowing, weed control, store protection, beneficial organism and regulations. |
| Tipo: Conference paper, poster, etc. |
Palavras-chave: Crop health; Quality; Protection. |
| Ano: 2005 |
URL: http://orgprints.org/3580/1/3580.pdf |
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| Bertholtz, Erik. |
| Kvickrot (Elytrigia repens (L.) Desv. ex Nevski) är ett flerårigt ogräs som är vanligt förekommande i svenska odlingsmarker. Innan kemisk totalbekämpning med glyfosat var kvickrot ett vanligt problem i lantbruket. Ogräset kontrollerades då med intensiv jordbearbetning. Idag är kvickrot ett viktigt ogräs i ekologisk odling och i system med reducerad jordbearbetning. Dock måste kvickrot fortfarande anses vara ett problem i konventionella system eftersom glyfosat måste användas återkommande för att slippa konkurrenseffekterna från kvickrot. Detta arbete är ett delprojekt som ingår i ett större projekt som syftar till att utveckla ekologiska odlingssystem som inte är lika beroende av jordbearbetning för att kontrollera kvickrot som dagens system. I arbetet... |
| Tipo: Thesis |
Palavras-chave: Soil tillage Crop health; Quality; Protection Weed management. |
| Ano: 2015 |
URL: http://orgprints.org/34107/1/bertholtz_e_160111.pdf |
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| Sigsgaard, Lene; Philipsen, Holger; Jakobsen, Henrik Byrial; Korsgaard, Maren. |
| Dette projekt har fokuseret på direkte bekæmpelse af tre skadegørere i økologisk ribs og solbær, nemlig den lille frostmåler Operophtera brumata, L. (Lepidoptera: Geometridae), viklere, primært hækvikler Archips rosana (L.) (Lepidoptera; Tortricidae) og ribsbredvingemøl Lampronia capitella (Clerck) (Lepidoptera; Prodoxidae). Behandlinger blev testet i en mark på 0,78 ha opdelt mellem solbærsorterne Ben Hope og Titania og i ribssorten Rovada. Vi anvendte et randomiseret blok design. I 2011 sammenlignede vi behandlinger med insektsæbe, rapsolie og Bacillus thuringiensis i Rovada og Titania. I Ben Hope sammenlignede vi blandinger af disse midler samt blanding med pyrethrum. I 2012 fortsatte undersøgelserne. Dette år indgik neem, sammen med B thuringiensis og... |
| Tipo: Report |
Palavras-chave: Crop health; Quality; Protection. |
| Ano: 2013 |
URL: http://orgprints.org/22446/7/22446.pdf |
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| Vollmer, J.H.; Pinnschmidt, H.O.; Munk, L.; Østergård, H.. |
| Background and objectives Two pathogens growing on the same leaf compete for the same resources, i.e. space and plant nutrients. This may lead to density dependent disease development. The pathogens may also influence each other directly such that the influence of one on the other is more complex than a simple function of the area of the other pathogen. Different interaction types are, for example, competition, mutualism and exploitation. The importance of such interactions for epidemics of simultaneously occurring pathogens has received little attention. The objective of this study is to investigate the simultaneous epidemic development of Rhynchosporium secalis (causing scald) and Drechslera teres (causing net blotch) on spring barley under field... |
| Tipo: Conference paper, poster, etc. |
Palavras-chave: Crop health; Quality; Protection Crop combinations and interactions Breeding; Genetics and propagation. |
| Ano: 2005 |
URL: http://orgprints.org/5974/1/5974.pdf |
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| Zaller, Johann G.. |
| Broad-leaved dock (Rumex obtusifolius L., Polygonaceae) is an agronomically important perennial weed causing decreases in pasture yields and fodder quality. Non-chemical control measures for dock are often limited to frequent pulling and cutting, additionally it is usually avoided by grazing animals. Here, the regeneration of R. obtusifolius in a Rumex-infested grassland grazed by a sheep breed that explicitly feeds on dock (Ovis aries L. cv. East Prussian Skudden) was compared to cutting. Therefore, regeneration of 90 R. obtusifolius plants of three different size classes was monitored in three plots during three grazing and cutting cycles. Plant height and number of fruit-stands of regrown R. obtusifolius was significantly lower, number of... |
| Tipo: Journal paper |
Palavras-chave: Crop health; Quality; Protection. |
| Ano: 2006 |
URL: http://orgprints.org/10452/1/Zaller_2006_BICO.pdf |
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| Schepl, Ute; Paffrath, Andreas. |
| More and more organic farmers lift potatoes which are damaged by wireworms (Agriotes spec. and Hemicrepidus niger). A nationwide status quo-analysis was carried out by the Chamber of Agriculture of North Rhine-Westphalia in 2002 and 2003. The survey included an intensive literature research, a questionnaire with 26 questions, on-site assessments, and on-farm trials. It was noticed that a long period of grass-clover cultivation in the crop rotation had a negative effect on the quality of potato tubers. Peas and lupines seemed to be the better pre-crops for a good quality of tubers in contrast to field beans and red clover. An autumn fertilization with manure resulted in a low feeding damage on potatoes by wireworms. Many perennial weeds some like... |
| Tipo: Conference paper, poster, etc. |
Palavras-chave: Crop health; Quality; Protection. |
| Ano: 2005 |
URL: http://orgprints.org/3578/1/3578.pdf |
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| Wibe, Atle; Cross, Jerry V.; Borg-Karlson, Anna-Karin; Hall, David R.; Trandem, Nina; Sigsgaard, Lene; Baroffio, Catherine; Ralle, Baiba; Fountain, Michelle T.. |
| Many growers of organic strawberry and raspberry have large losses in yield and reduced quality of their products because of insect damage. For many insects species pheromones and host plant volatiles are of major importance in mate finding and host plant location. In this project we want to extend our knowledge of these systems to develop effective control measures to control these pests in organic crops. The focus will be on the strawberry blossom weevil, the European tarnish plant bug and the raspberry beetle. |
| Tipo: Conference paper, poster, etc. |
Palavras-chave: Crop health; Quality; Protection. |
| Ano: 2014 |
URL: http://orgprints.org/23830/1/23830%20SOFTPEST%20MULTITRAP%20Wibe%20et%20al._MM.pdf |
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| Lukas, Kathrin; Innerebner, Gerd; Kelderer, Markus; Finckh, Maria R.; Hohmann, Pierre. |
| The six products, Armicarb, Vitisan, lime sulphur, Caso, Calce Fiocco and Ulmasud were tested for their ability to control downy mildew (Plasmopara viticola) on grapevine (Vitis vinifera) in order to find effective alternatives to copper, a heavy metal that is commonly used as a fungicide in organic viticulture. Each product was applied to potted grapevines at i) 40°h (degree hours) and ii) 80°h after inoculation (ai) of the pathogen. These so-called stop-sprays were tested on plants that received two different P. viticola inoculum rates. The formulated potassium bicarbonate product Armicarb and lime sulphur reduced disease incidence and severity similar to or better than the copper hydroxide treatment. Armicarb and lime sulphur reduced disease incidence... |
| Tipo: Journal paper |
Palavras-chave: Crop health; Quality; Protection Viticulture. |
| Ano: 2016 |
URL: http://orgprints.org/30353/1/s41348-016-0024-1 |
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| Cahenzli, Fabian; Daniel, Claudia. |
| Drosophila suzukii is a major pest of soft fruits. Baited traps are widely used for monitoring and mass trapping: different commercial baits, different recipes for home-made baits as well as several literature references on attractive compounds are available. In a series of 15 laboratory experiments we compared the attractiveness of different baits for D. suzukii: the commercially available Dros’attract (Biobest Belgium NV) and the Gasser-bait (Biologische Becherfalle für die Kirschessigfliege Drosophila suzukii; Riga AG), a 4-Component-attractant (Cha et al., 2013) and a self-made wine-vinegar-bait (50 % water, 40 % apple cider vinegar, 10 % red wine, 0.05 % acetone, 0.0125 % soap). Furthermore, we tested if different bait amendments (β-Cyclocitral,... |
| Tipo: Report |
Palavras-chave: Fruit and berries Crop health; Quality; Protection Viticulture. |
| Ano: 2016 |
URL: http://orgprints.org/29866/1/Report_FiBL_Attractans.pdf |
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| Schaerer, Hans-Jakob; Amsler, Thomas; Thürig, Barbara; Tamm, Lucius. |
| Novel organic fungicides and elicitors against downy mildew on grapevines were evaluated on grapevine seedlings in a series of indoor screening experiments under controlled conditions and, if they have shown a good efficacy indoors, in a screening vineyard under field conditions. From 39 products tested under controlled conditions 10 were further examined under field conditions. All of the new products tested under field conditions showed at least partial efficacy. However, the efficacy was not good enough to protect grapevine plants sufficiently from downy mildew. For a complete re-placement of copper in plant protection against downy mildew on grapevine in organic agriculture, additional new products are needed. |
| Tipo: Conference paper, poster, etc. |
Palavras-chave: Crop health; Quality; Protection. |
| Ano: 2006 |
URL: http://orgprints.org/8235/1/HJS_LT_Repco.pdf |
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| Lambion, Jérôme; Amour, Clément. |
| La biodiversité fonctionnelle consiste à implanter autour des cultures des espèces végétales qui vont attirer, héberger, nourrir les insectes auxiliaires indigènes (notamment les punaises prédatrices), participant au maintien des populations de ravageurs sous le seuil de nuisibilité économique. L'objectif est donc de transposer cette technique pour améliorer la lutte contre les aleurodes et les acariens tétranyques, qui sont parmi les principaux ravageurs sous abri dans le Sud de la France. Les espèces végétales les plus intéressantes globalement sont donc, dans l’ordre : Calendula officinalis, Dittrichia viscosa, Geranium robertianum, Achillea millefolium et Phacelia tanacetifolia. Les performances agronomiques de certaines plantes sont à évaluer en... |
| Tipo: Report |
Palavras-chave: Crop health; Quality; Protection. |
| Ano: 2008 |
URL: http://orgprints.org/16701/1/CRbiodiv2008.pdf |
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| Registros recuperados: 3.823 | |
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