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| Registros recuperados: 12 | |
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| Benduhn, Bastian; Heyne, Peter; Fieger-Metag, Nicole; Maxin, Peter. |
| The population control of the codling moth (Cydia pomonella) is of great importance in ecological fruit-growing. Given suitable climatic conditions, an increase in population density can lead to explosive growth of subsequent generations. In the work described here we attempted (1) to determine the efficacy of plant protection preparations certi-fied for ecological fruit-growing, and (2) to develop a suitable application strategy. We found that a Granulovirus (Madex3) and Neem Azal were able to provide effective control of C. pomonella. The reduced effect of Madex 3 as reported e.g. from South-ern German orchards (KIENZLE et al. 2006) could not be observed in our trials. |
| Tipo: Conference paper, poster, etc. |
Palavras-chave: Fruit and berries. |
| Ano: 2007 |
URL: http://orgprints.org/9849/1/9849_Benduhn_Vortrag.pdf |
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| Benduhn, Bastian; Maxin, Peter; Pfeiffer, Barbara. |
| From June 2004 onwards a trial was conducted on a blueberry farm in the Lüneburg Heath, Northern Germany, in which methods of mechanical soil cultivation were compared with mulching. The aim was to determine how far the mechanical methods and equipment established for soil management in viniculture and pomiculture can be adapted to blueberry cultivation, and can be improved. The results showed a clear advantage of the methods based on mulch technology in the shape of increased yields. Whilst the mechanical treatments provided acceptable weed control, they cannot be recommended for routine use at present because of strong yield reductions associated with damage to the shallow root system of highbush blueberry shrubs. |
| Tipo: Conference paper, poster, etc. |
Palavras-chave: Crop health; Quality; Protection Fruit and berries. |
| Ano: 2008 |
URL: http://orgprints.org/13663/1/152%2D154.pdf |
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| Klopp, Karsten; Kruse, Petra; Maxin, Peter; Palm, Gerd. |
| In 2003 six apple scab control strategies were tested, three with only lime sulphur in different application strategies, another three strategies with different amounts of copper. The strategies were tested in an organic apple orchard near Hamburg, Germany, on a 15 year old `Elstar´ plantation. Due to the recorded infection periods and the infection load the different strategies were tested. The results show that a proper lime sulphur strategy is quite successful to fight apple scab (< 4% infected fruit), has good side effects on apple mildew (< 2%) and only little russetting (< 5%) compared to strategies with copper fungicides. ablto fight fruit scab as well as leave scab. A proper strategy means no application later than 15 hours after... |
| Tipo: Conference paper, poster, etc. |
Palavras-chave: Crop health; Quality; Protection Fruit and berries. |
| Ano: 2004 |
URL: http://orgprints.org/14443/1/19_Klopp_96_100.pdf |
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| Fieger-Metag, Nicole; Beer, Margarita; Maxin, Peter; Martens, Anke; Lindstaedt, Julian; Heyne, Peter. |
| Im dreijährigen Projekt zu „Untersuchung der Abundanz von Schadorganismen und der Entwicklung des Inokulums des Schorfpilzes in einer Mischkultur aus vier genetisch wenig verwandten Apfelsorten“ sollte erforscht werden, inwieweit Mischkulturen die Ausbreitung wichtiger Kernobstschädlinge sowie die Entwicklung des Schorfpilzes beeinflussen. Die Ergebnisse wurden anhand eines Vergleichs einer Mischkulturpflanzung von vier genetisch wenig verwandten Apfelsorten mit einer Reinkulturpflanzung der gleichen Sorten erarbeitet. Als Apfelsorten wurden ´Holsteiner Cox´, ´Elstar´, ´Fuji´ und die schorfresistente Sorte ´Topaz´ aufgepflanzt. Während der Versuchsjahre wurden Schaderregerbonituren auf Apfelsägewespe (Hoplocampa testudinea), Apfelrostmilbe (Aculus... |
| Tipo: Report |
Palavras-chave: Crop health; Quality; Protection Fruit and berries. |
| Ano: 2009 |
URL: http://orgprints.org/16698/1/16698%2D06OE194%2Doeko_komp%2Dbeer%2D2009%2Dschorfpilz.pdf |
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| Maxin, Peter; Fieger-Metag, Nicole; Benduhn, Bastian; Kruse, Petra; Heyne, Peter. |
| In general, organic grown apples (Malus x domestica Borkh.) are not treated with chemical fungicides to pre-vent storage decay and these fruits may suffer up to 30% decay during storage. Preliminary experiments had shown that hot water dipping of apples may be an alternative. To inhibit Gloeosporium rot (Pezicula alba, P. malicortis) water temperature may be of about 50°C and dipping time from 60 sec up to 240 sec. The objec-tive was to determinate the suitable hot water treatment that prevent decay incidence and maintain fruit qual-ity (firmness, scale symptoms). In between the years 2002 and 2005 the test were repeated and a recom-mendation for the apple varieties in the area Northern Germany was elaborated. |
| Tipo: Conference paper, poster, etc. |
Palavras-chave: Crop health; Quality; Protection Fruit and berries. |
| Ano: 2006 |
URL: http://orgprints.org/8839/1/ecofruit_12th_21.pdf |
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| Mayr, Ulrich; Weber, Roland W. S.; Renner, Ute; Buchleither, Sascha; Beer, Margarita; Maxin, Peter. |
| Ziel des dreijährigen Projekts war es, Schlüsselparameter der bisher unter europäischen Bedingungen nur wenig erforschten Regenfleckenkrankheit (RFK) zu erarbeiten. In den Regionen Altes Land und Bodensee dominierte in allen drei Versuchsjahren (2007 – 2009) ein und derselbe RFK-Erreger, Peltaster sp.. Weitere RFK-Erreger sowie der Erreger der Fliegenschmutzkrankheit (FSK), Schizothyrium pomi, kamen nur sporadisch vor und sind wahrscheinlich für die Bekämpfung der Symptome derzeit ohne Bedeutung. In beiden Regionen ist die RFK fast ausschließlich auf ökologisch bewirtschaftete Anlagen beschränkt. Eine Besiedlung von Obstanlagen durch RFK-Erreger findet zunächst von außen statt, kann dann aber in den darauf folgenden Jahren durch endogenes Inokulum getragen... |
| Tipo: Report |
Palavras-chave: Fruit and berries Crop health; Quality; Protection. |
| Ano: 2010 |
URL: http://orgprints.org/17410/1/17410%2D06OE323%2Dkob_bavendorf%2Dmayr%2D2010%2Dreduktion_regenfleckenkkrankheit.pdf |
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| Trapman, Marc; Maxin, Peter; Weber, Roland W. S.. |
| A fruit rot resembling Gloeosporium infections but appearing on fruits prior to harvest was noticed in organic apple orchards in Holland, Belgium and Northern Germany in 2007. Infections were most commonly observed on ‘Elstar’, but other cultivars were also affected. Fruit colonisation progressed in two steps, whereby a latent stage of sunken black lesions in immature fruits gave rise to a rapidly spreading firm brown rot upon fruit ripening. Isolation experiments from both stages consistently yielded a single species of fungus identified as Diplodia seriata, formerly known under the teleomorph name Botryosphaeria obtusa. Lesions of D. seriata were also seen on leaves as necrotic light brown spots surrounded by a purple halo, and occasionally on... |
| Tipo: Conference paper, poster, etc. |
Palavras-chave: Crop health; Quality; Protection Fruit and berries. |
| Ano: 2008 |
URL: http://orgprints.org/13668/1/177%2D181.pdf |
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| Klopp, Karsten; Kruse, Petra; Maxin, Peter; Palm, Gerd. |
| In the last eight years research work has been done at the Fruit Research and Extension Centre Jork (OVB Jork) on strategies to control apple scab (Venturia inaequalis), powdery mildew of apple (Podosphaera leucotricha), sooty blotch(several fungis) and apple rust mite (Aculus schlechtendali) on organic grown pome fruit. Since 1997 different control strategies with reduced copper use and copper substitutes and sulphur with different application rates were tested in several trials on trees in organic apple orchards near Hamburg, Germany. The strategies were tested on the cultivar `Elstar´. The results show that sulphur has significant effects to control fruit scab, leave scab, powdery mildew, sooty blotch and rust mite. |
| Tipo: Conference paper, poster, etc. |
Palavras-chave: Crop health; Quality; Protection Fruit and berries. |
| Ano: 2005 |
URL: http://orgprints.org/3765/1/3765.pdf |
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| Registros recuperados: 12 | |
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