J. Köhl

Juiste druppelgrootte vergroot efficiëntie Ulocladium (2008)

Apple scab caused by Venturia inaequalis is a major disease in apple production. In organic farming scab control depends on the use of fungicides based on copper or sulphur. Since the use of copper...

Köhl, J., Kessel, G.J.T., Molhoek, W.M.L., Evenhuis, A.

Flying doctors (2008)

Evenhuis, A., Köhl, J., Paternotte, S.J., ...

Biologische bestrijdingsmiddelen: kwaliteitscontrole met behulp van flowcytometrie (2008)

Bergervoet, J.H.W., Paternotte, S.J., Köhl, J.

Schurft bij de bron aanpakken (2008)

Heijne, B., Köhl, J.

Blokkeren van invalspoorten voor kanker (2008)

Heijne, B., Köhl, J.

Preventie van Stemphylium vesicarium in peer : Welke waardplanten zijn ziektebronnen? (2008)

Geïntegreerde teelt van vollegrondsaardbeien : thema innovatie en management - open teelten BO-06-002-005 (2008)

Evenhuis, A., Booij, C.J.H., Köhl, J., Lamers, J.G., ...

Infectiebronnen zwartvruchtrot in peer : thema innovatie en management - open teelten BO-06-002-009.005 (2008)

Köhl, J., Joosten, N.N., Waalwijk, C., Kastelein, P.

Biologisch uitgangsmateriaal (2008)

Groot, S.P.C., Hospers, M., Jalink, H., Köhl, J., Veerman, A., ...

Population dynamics of Fusarium spp. causing Fusarium Head Blight (2008)

New approaches in biological control of apple scab (2008)

Köhl, J., Molhoek, W.M.L., Eiben, U.

Selection and orchard testing of antagonists suppressing conidia production of the apple scab pathogen Venturia inaequalis (online first) (2008)

Innovatieve bestrijdingsmethode appelschurft (2008)

Apple scab caused by Venturia inaequalis is a major disease in apple production. Epidemics in spring are initiated by ascospores produced on overwintering leaves whereas epidemics during summer are...

Köhl, J., Heijne, B.

Appelschurft, veroorzaakt door de schimmel Venturia inaequalis, is een groot probleem in de appelteelt. Schurft wordt in de biologische appelteelt wereldwijd veelal bestreden met koperhoudende...

Nieuwe detectiemethode zwartvruchtrot in peer (2008)

Belangrijke rol bloeminfecties bij infecties van kool (Brassica) zaad met Xanthomonas (2008)

Wageningen UR heeft onderzocht waar de schimmel voorkomt en hoe deze in de winter overleeft. Ook is gekeken naar de relatie tussen zwartvruchtrot en de aanwezigheid van organisch materiaal in de...

Haas, L., Köhl, J.

Alternaria in zaaizaadproductie in kool (2008)

Development of quantitative detection methods for Fusarium in cereals and their application (2008)

Waalwijk, C., Köhl, J., Xu, X., Kema, G.H.J.

New approaches in biological control of apple scab (2008)

Risico's op schimmelaantasting in vruchtgroenten: literatuurstudie : rapportage van project 'Risicoschatter voor schimmelaantasting in vruchtgroenten: voorfase' van onderzoeksprogramma energie (LNV-DK-03-06) (2007)

Apple scab caused by Venturia inaequalis is a major disease in apple production. In organic farming scab control depends on the use of fungicides based on copper or sulphur. Since the use of copper...

Köhl, J., Wubben, J.P.

Occurrence of Rhexocercosporidium carotae on cold stored carrot roots in the Netherlands (2007)

Kastelein, P., Stilma, E.S.C., Elderson, J., Köhl, J.

Winter carrot for the fresh market is an important cash crop for many organic arable farms in the Netherlands. In recent years carrot roots from cold stores have been affected by superficial dark...

Inoculumbronnen van Stemphylium vesicarium in peer : thema: innovatie & management open teelten BO-06-002 1.1.9 (2007)

Köhl, J., Waalwijk, C.

Geïntegreerde teelt van aardbeien in vollegrond : thema: innovatie & management open teelten BO-06-002 1.1.5 (2007)

Evenhuis, A., Booij, C.J.H., Köhl, J., Lamers, J.G., Messelink, G.J., ...

Management van gewasresten (2007)

Köhl, J., Vlaswinkel, M.E.T., Kastelein, P.

Effect van kasklimaat op botrytis bij gerbera (2007)

Körner, O., Slootweg, G., Köhl, J.

Monitoren van schimmelsporen (2007)

Köhl, J., Schoen, C.D., Bergervoet, J.H.W., Paternotte, S.J., ...

Biologische bestrijding van appelschurft : thema effectief en duurzaam middelenpakket BO-06-004-001.006 (2007)

Köhl, J., Molhoek, W.M.L., Heijne, B.

Effect van kasklimaat op botrytis bij gerbera : thema: effectief en duurzaam middelenpakket BO-06-004-001.002 (2007)

Körner, O., Slootweg, G., Köhl, J.

Monitoren van schimmelsporen : thema: effectief en duurzaam middelenpakket BO-06-004-001.003 (2007)

Köhl, J., Schoen, C.D., Bergervoet, J.H.W., Paternotte, S.J., ...

Management van gewasresten (2007)

Köhl, J., Vlaswinkel, M.E.T., Kastelein, P.

Ährenfusariosen: Viele Erreger verursachen Probleme (2007)

Köhl, J., Waalwijk, C.

Population dynamics of fusarium spp. and Microdochium nivale in crops and crop residues of winter wheat (2007)

Köhl, J., Kastelein, P., Waalwijk, C.

Naturally occurring populations of Fusarium avenaceum, F. culmorum, F. graminearum, F. poae, and Microdochium nivale were studied in two field experiments from anthesis in June 2003 until harvest in...

REPCO 501452 : Replacement of copper fungicides in organic production of grapevine and apple in Europe : publishable final activity report (2007)

Zwarte vlekkenziekte in koud bewaarde peen onder controle krijgen (2007)

Contributions of EU-project REPCO to apple scab control (2006)

Köhl, J., Heijne, B., Hockenhull, J., Lindhard Pedersen, H., Trapman, M., Eiben, U., ...

The objective of REPCO is to contribute to the replacement of copper fungicides in organic agriculture by new measures for control of downy mildew (Plasmopara viticola) in grapevine and scab...

Epidemiology of dark leaf spot caused by Alternaria brassicicola in organic seed production of cauliflower. (2006)

Köhl, J., Driessen, R.G.

Dark leaf spot caused by Alternaria brassicicola is a seed-borne disease of Brassicae. Production of healthy seed is essential for the organic vegetable production. Literature on the epidemiology of...

Black spot diseases in carrot (2006)

Voorrips, R.E., Zijlstra, S., Köhl, J., Kastelein, P.

An important problem in organic carrot production in the Netherlands is the occurrence of black spots during storage. Several different fungal pathogens cause similar symptoms, which are collectively...

Biologische Bekämpfung von Blatt- und Fruchtpathogenen. (2006)

Selection of antagonists suppressing conidia production of Venturia inaequalis (2006)

Screening of micro-organisms for Venturia inaequalis control by means of DGGE (2006)

Screening of biocontrol agents of fungal leaf diseases (2006)

Integratie van het gebruik van de antagonist Ulocladium atrum in de teelt van aardbei voor de bestrijding van vruchtrot (Botrytis cinerea) (2006)

Köhl, J., Evenhuis, A., Boff, P.

Improvement of the quality of propagation material for organic farming system (2006)

Groot, S.P.C., Jalink, H., Köhl, J., Veerman, A., Wenneker, M., ...

Integrated disease management (2006)

Prevention and control of apple scab (2006)

Heijne, B., Köhl, J., Hockenhull, J., Bengtsson, M., ...

Improved prevention and control of apple scab caused by Venturia inaequalis is aimed at without the use of copper containing products in the Repco-project. Substantial progress is made in selection...

The need for a supply of high quality organic vegetable seeds (2006)

Groot, S.P.C., Jalink, H., Köhl, J., Langerak, C.J., Michta, A., Werner, S., ...

Production of high quality organic vegetable seeds encounters several challenges. Research is performed to support seed companies in producing vigorous and healthy organic vegetable seeds. Examples...

Transmission of Xanthomonas campestris pv. campestris by the fly Calliphora vomitoria to blooming cauliflower plants (Brassica oleracea) (2006)

Garberva, P., Köhl, J.

Optreden van Botrytis bij gerbera : inventarisatie van de huidige kennis, rapportage van een literatuurstudie t.b.v. project 'Voospelling en sturing van gewasgroei, kwaliteit, Botrytis-ontwikkeling en energiegebruik' van het Parapluplan 'Botrytis in relatie tot energie bij gerbera' (2006)

Köhl, J., Wubben, J.P.

Inventarisatiestudie Botrytiskennis (2006)

Computermodel moet botrytis in gerbera helpen voorkomen (2006)

Köhl, J., Wubben, J.P.

Management van gewasresten (2006)

Köhl, J., Vlaswinkel, M.E.T.

Effect van kasklimaat op Botrytis bij gerbera : thema effectief en duurzaam middelenpakket BO-06-004 2.1.2 (2006)

Slootweg, G., Köhl, J., Wubben, J.P.

Monitoren van schimmelsporen : thema effectief en duurzaam middelenpakket BO-06-004 (2006)

Köhl, J., Amsing, J.J., Schoen, C.D., Bonants, P.J.M., Bergervoet, J.H.W., ...

Biologische bestrijding van appelschurft : thema effectief en duurzaam middelenpakket BO-06-004 2.1.6 (2006)

Köhl, J., Molhoek, W.M.L., Kastelein, P., ...

Op weg naar praktijktoepassing van Ulocladium atrum tegen vruchtrot in aardbeien (2006)

Evenhuis, A., Köhl, J., Boff, P.

Populationsdynamik der Erreger der Ährenfusariose in Weizenbeständen und deren Ernterückständen (2006)

Köhl, J., Haas, L., Kastelein, P., Waalwijk, C.

Selektion antagonistischer Mikroorganismen zur biologischen Bekämpfung von Venturia inaequalis durch Analyse von DGGE-Fingerprints mikrobieller Gemeinschaften (2006)

EU-Projekt REPCO entwickelt neue Möglichkeiten zur Biologischen Bekämpfung von Apfelschorf (2006)

Heijne, B., Köhl, J.

Development of quantitative detection methods for Fusarium in cereals and their application (2006)

Waalwijk, C., Köhl, J., Xu, X., Kema, G.H.J.

Rudolf Herrmanns Award, Geisenheim for scientific contributions in horticulture (2006)

Functie bij : EU (2006)

Functie bij : Committee 'European Joint Organic Congress', Odense, Denmark (2006)

Improvement of the quality of propagation material for organic farming system (2006)

Groot, S.P.C., Jalink, H., Hospers-Brands, M., Köhl, J., Veerman, A., Wenneker, M., ...

The use of organic propagation material is obligatory according to the current EU regulations for organic production. However, frequently difficulties are en-countered regarding the availability, the...

Selection of antagonists suppressing conidia production of Venturia inaequalis (2006)

Köhl, J., De Haas, B.H., Molhoek, W.M.L.

Novel antagonists for biological control of Venturia inaequalis causing apples scab were screened. Several hundred fungal isolates were obtained from sporulating colonies of V. inaequalis on apple...

Epidemiology of dark leaf spot caused by Alternaria brassicicola in organic seed production of cauliflower (2006)

Köhl, J., Van Tongeren, C., De Haas, B.H., Driessen, R.G.

Dark leaf spot caused by Alternaria brassicicola is a seed-borne disease of Brassicae. Production of healthy seed is essential for the organic vegetable production. Literature on the epidemiology of...

Transmission of Xanthomonas campestris pv. campestris by the fly Calliphora vomitoria to blooming cauliflower plants (Brassica oleracea) (2006)

Van Der Wolf, J. M., Van Der Zouwen, P.S., Garbeva, P., Köhl, J.

Xanthomonas campestris pv. campestris (Xcc) is a seed borne pathogen that causes black rot, a destructive disease of cabbage. Exclusion of infec-tions is the most effective way to control black rot...

Prevention and control of apple scab (2006)

Heijne, B., Jong, P.F. De, Köhl, J., Hockenhull, J., Bengtsson, M., ...

Improved prevention and control of apple scab caused by Venturia inaequalis is aimed at without the use of copper containing products in the Repco-project. Substantial progress is made in selection...

The need for a supply of high quality organic vegetable seeds (2006)

Groot, S.P.C., Jalink, H., Köhl, J., Langerak, C.J., Michta, A., Werner, S., ...

Production of high quality organic vegetable seeds encounters several challenges. Research is performed to support seed companies in producing vigorous and healthy organic vegetable seeds. Examples...

Modeling spatial characteristics in the biological control of fungi at leaf scale: competitive substrate colonization by Botrytis cinerea and the saprophytic antagonist Ulocladium atrum (2005)

Kessel, G.J.T., Köhl, J., Powell, J.A., Rabbinge, R.

Potential of fungal antagonists for biocontrol of toxigenic Fusarium spp. in wheat and maize through competition in crop debris (2005)

Luongo, L., Galli, M., Corazza, L., Meekes, E.T.M., ...

Pathogenic Fusarium spp. cause head blight in wheat or ear rot in maize leading to yield losses and also a reduction in quality due to mycotoxin contamination of the grain. Infected crop residues are...

Identification of measures for prevention of black spots in organically produced stored carrots (2005)

Köhl, J., Kastelein, P., Elderson, J., Blok, W.J.

In the Netherlands winter carrot for the fresh market is a cash crop for many organic growers of field vegetables. In the last few years blackish spots have been observed during storage of carrot...

Biocontrol of foliar diseases in horticulture (2005)

Biocontrol of foliar diseases in horticulture (2005)

Modeling spatial characteristics in the biological control of fungi at leaf scale: competitive substrate colonization by Botrytis cinerea and the saprophytic antagonist Ulocladium atrum. (2005)

Kessel, G.J.T., Köhl, J., Powell, J.A., Rabbinge, R.

Gebruik van TaqMan PCR voor het kwantificeren van Fusarium spp. en Microdochium nivale in gewassen en gewasresten van tarwe. (2005)

Köhl, J., Kastelein, P., Waalwijk, C.

Gebruik van TaqMan PCR voor het kwantificeren van Fusarium spp. en Microdochium nivale in gewassen en gewasresten van tarwe (2005)

Köhl, J., Kastelein, P., Waalwijk, C.

Op weg naar praktijktoepassing van de antagonist Ulocladium atrum in de teelt van aardbei voor de bestrijding van vruchtrot (Botrytis cinerea.) (2005)

Evenhuis, A., Köhl, J., Wander, J.G.N.

Verhoging van de intrinsieke plantweerstand met behulp van bodembacteriën (2005)

Stevens, L.H., Köhl, J., Stoopen, G.M.

BioSupport: op weg naar registratie van GNO's (2005)

Zaadbesmetting op tweejarige gewassen: ziekteoverdracht van Botrytis aclada in ui (2005)

Langerak, C.J., Köhl, J.

Verhoging van de intrinsieke plantweerstand met behulp van bodembacteriën (2005)

Stevens, L.H., Köhl, J., Stoopen, G.M.

Epidemiologie van toxigene Fusarium spp. in graan (2005)

Microbiële weerbaarheid tegen appelschurft (2005)

Köhl, J., Molhoek, W.M.L., Kastelein, P.

Biological control of Botrytis spp. by Ulocladium atrum through competitive colonisation of necrotic plant tissues (2004)

Biological control of Alternaria radicina in seed production of carrots with Ulocladium atrum (2004)

Köhl, J., Langerak, C.J., Meekes, E.T.M., Molhoek, W.M.L.

Quantitative detection of Fusarium species in wheat using TaqMan (2004)

Waalwijk, C., Schoen, C.D., Costrel-Decorainville, G., ...

Fusarium head blight (FHB) of wheat and other small-grain cereals is a disease complex caused by several fungal species. To monitor and quantify the major species in the FHB complex during the...

Control of mycotoxins during raw material production (2004)

Jennings, P., Köhl, J., Gosman, M.

Zwarte vlekken in bewaarde peen: op zoek naar maatregelen ter voorkoming van dit probleem (2004)

Kastelein, P., Elderson, J., Köhl, J.

PRI heeft in 2001 en 2002 onderzocht welke teeltfactoren van invloed kunnen zijn op het optreden van zwarte vlekken in bewaarpeen, een verschijnsel dat de laatste jaren steeds vaker voorkomt bij...

Biologische bestrijding van bovengrondse ziekten: succes bepaald door ecologie en economie. (2004)

Fate of antagonist inoculum applied for control of foliar diseases. (2004)

Inventarisatie, voorspelling en beheersing zwarte vlekkenziekte in peen. Rhexocercosporidium carotae, een `nieuwe' veroorzaker van zwarte vlekkenziekte in bewaarpeen (2004)

Seed treatments against fusarium in organic spring wheat (2004)

Rhexocercosporidium carotae, een `nieuwe¿ veroorzaker van zwarte vlekkenziekte in bewaarpeen.

Osman, A., Groot, S.P.C., Köhl, J., Kamp, L., Bremer, E.

Fusarium in granen: epidemiologie en resistentie (2004)

Kema, G.H.J., Schoen, C.D., Kastelein, P., ...

Integration of the use of the antagonist Ulocladium atrum in management of strawberry grey mould (Botrytis cinerea) (2004)

Köhl, J., Evenhuis, A., Boff, P.

Alternaria in peen bij de bron bestrijden (2003)

Molhoek, W.M.L., Köhl, J.

Potential of Ulocladium atrum for biocontrol of onion leaf spot through suppression of sporulation of Botrytis spp (2003)

Identificatie van preventieve maatregelen ter voorkoming van zwarte vlekken in de biologische teelt van peen (2003)

Epidemics of onion leaf spot caused by Botrytis spp. depend on necrotic leaf tissue for inoculum build up in the crop. Ulocladium atrum Preuss. is a strong competitor on necrotic above-ground plant...

Kastelein, P., Elderson, J., Köhl, J.

Role of petals in development of grey mould in strawberries (2003)

Boff, P., Köhl, J.

Major changes in Fusarium spp. in wheat in The Netherlands (2003)

Waalwijk, C., Kastelein, P., Kerényi, Z., Hesselink, T., Arts, J., ...

The re-emergence of fusarium head blight throughout the world and especially in Western Europe prompted a survey of the situation in the Netherlands. To allow for a high throughput screening of large...

Importância das pétalas no desenvolvimento do mofo-cinzento do morangueiro (2003)

Boff, P., Köhl, J.

Inventarisatie en preventie van de belangrijkste bladvlekkenziekten in tarwe veroorzaakt door Pyrenophora tritici-repentis (DTR) en Septoria tritici: verslag over deel 2 (2003)

Köhl, J., Kema, G.H.J., Fokkema, N.J., Kastelein, P., Verstappen, E.C.P.

Effect of antagonistic fungi against Fusarium graminearum and F. culmorum on stubble of different cereals and at different temperatures (2003)

El-Naggar, M., Köhl, J.

Bioassays were carried out with antagonists to suppress sporulation by F. culmorum and F. graminearum on cereal debris. A differential effect was found for temperatures on the effect of antagonistic...

Biologische bestrijding van bovengrondse ziekten: succes bepaald door ecologie en economie. (2003)

Kweek is infectiebron van DTR in tarwe (2003)

Kastelein, P., Köhl, J.

Functie bij : Faculty of Agriculture, Rheinische Friedrich-Wilhems-Universität Bonn, Germany (2003)

Competitive substrate colonisation by Botrytis cinerea and Ulocladium atrum in relation to biological control of B. cinerea in cyclamen (2002)

Biological control of grey mould with Ulocladium atrum in annual strawberry crops (2002)

The dynamics of competitive colonisation of necrotic cyclamen tissue by the plant pathogenic fungus Botrytis cinerea and the saprophytic fungal antagonist Ulocladium atrum were studied...

Boff, P., Köhl, J., Gerlagh, M.

Ulocladium atrum 385: Een veelbelovende kandidaat voor de biologische bestrijding van Botrytis cinerea (2002)

Biologische bestrijding van bovengrondse plantenziekten met Ulocladium atrum : biologische akkerbouw en vollegrondsgroenteteelt in perspectief (2002)

Meekes, E.T.M., Köhl, J., Molhoek, W.M.L., Gerlagh, M.

Risk factors in Fusarium head blight epidemics (2002)

Meekes, E.T.M., Köhl, J.

Biocontrol of grey mould by Ulocladium atrum applied at different flower and fruit stages of strawberry (2002)

Boff, P., Köhl, J., Gerlagh, M.

Grey mould is an important disease of strawberries resulting from flower and fruit infection by Botrytis cinerea Pers. The saprophytic fungus Ulocladium atrum Preuss is a promising biological control...

Importance of environmental conditions during antagonists selection for biocontrol of toxigenic Fusarium spp. in wheat (2002)

Köhl, J., Meekes, E.T.M.

Effect of environmental factors on conidial germination of the Botrytis spp. antagonist Ulocladium atrum (2002)

Proceedings of the meeting Influence of A-Biotic and Biotic Factors on Biocontrol Agents at Pine Bay, Kusadasi (Turkey), 22-25 May 2002 (2002)

Elad, Y., Köhl, J., Shtienberg, D.

Controlling infection of cereal grain by toxigenic Fusarium spp. using fungal competitors (2002)

Bateman, G.L., Köhl, J., Corazza, L., ...

Inoculum sources of the tan spot fungus Pyrenophora tritici-repentis in the Netherlands (2002)

Kastelein, P., Köhl, J., Gerlagh, M.

Selektion von Antagonisten zur biologischen Bekämpfung von mykotoxin-produzierenden Fusarium spp. in Weizen (2002)

Fusarium in granen: identificatie van cruciale lacunes in kennis omtrent een internationaal probleem (2002)

Kema, G.H.J., Köhl, J., Löffler, H.J.M., Meekes, E.T.M., ...

Biological control of gray mold with ulocladium atrum in annual strawberry crops (2002)

Boff, P., Köhl, J., Jansen, M.L.E.

Comparative analysis of the role of substrate specificity in biological control of Botrytis elliptica in lily and B. cinerea in cyclamen with Ulocladium atrum (2001)

Kessel, G.J.T., Pennock-Vos, M.G., ...

Biological control of Botrytis spp. by the fungal antagonist Ulocladium atrum is based on their interaction in plant tissue. U. atrum is effective against B. cinerea in commercial cyclamen crops but...

Epidemiology of grey mould in annual waiting-bed production of strawberry. (2001)

Boff, P., Kastelein, P., Gerlagh, M., Köhl, J.

The epidemiology of Botrytis cinerea was studied in five annual strawberry crops using waiting-bed transplants, a system widely adopted in the Netherlands. On dead leaves of transplants the incidence...

Conidial persistence and competitive ability of the antagonist Ulocladium atrum on strawberry leaves. (2001)

Boff, P., Gerlagh, M., Köhl, J.

The persistence of conidia and competitive ability of Ulocladium atrum, an antagonist of Botrytis cinerea, were studied in field plots of strawberry in The Netherlands. Single application of conidial...

Mechanistic aspects of competitive substrate colonisation by Botrytis cinerea and Ulocladium atrum (2001)

Epidemiology of Botrytis spp. in different crops determines success of biocontrol by competitive substrate exclusion by Ulocladium atrum (2001)

Köhl, J., Kessel, G.J.T., Boff, P.

The effect of treatment with Ulocladium atrum on Botrytis cinerea attack of geranium (Pelargonium zonale) stock plants and cuttings (2001)

Gerlagh, M., Amsing, J.J., Molhoek, W.M.L., Köhl, J.

Effect of water potential on conidial germination and antagonism of Ulocladium atrum against Botrytis cinerea (2001)

Ulocladium atrum 385: a promising candidate for biological control of Botrytis cinerea (2001)

The saprophytic fungus Ulocladium atrum was selected for its ability to competitively exclude Botrytis spp. from aboveground necrotic plant tissues which can play a crucial role in the epidemiology...

Complement factors C3a and C5a are increased in bronchoalveolar lavage fluid after segmental allergen provocation in subjects with asthma (2001)

Krug, N., Tschernig, T., Erpenbeck, V.J., Hohlfeld, J.M., Köhl, J.

Allergic asthma Is thought to be the result of an inappropriate specific immune response against common environmental antigens. However, studies of animal asthma models have also linked the innate...

Searching for sustainable strategies in Botrytis management : how models can help (2000)

Kessel, G.J.T., Köhl, J., Rossing, W.A.H.

Identifying promising application strategies of a biocontrol agent - a systems approach to control of Botrytis cinerea with Ulocladium atrum (2000)

Boff, P., Gerlagh, M., Köhl, J.

Botrytis elliptica ontsnapt aan biologische bestrijder (2000)

Biocontrol of Botrytis cinerea by Ulocladium atrum in different production systems of cyclamen (2000)

Köhl, J., Gerlagh, M., Grit, G.

Cutting edge: Guinea pigs with a natural C3a-receptor defect exhibit decreased bronchoconstriction in allergic airway disease: Evidence for an involvement of the C3a anaphylatoxin in the pathogenesis of asthma (2000)

Bautsch, W., Zhang, Q., Meier-Wiedenbach, I., Raschke, U., Ames, R.S., ...

Asthma is a major cause of morbidity worldwide with prevalence and severity still increasing at an alarming pace. Hallmarks of this disease include early-phase bronchoconstriction with subsequent...

Quantification of mycelium of Botrytis spp. and the antagonist Ulocladium atrum in necrotic leaf tissue of cyclamen and lily by fluorescence microscopy and image analysis (1999)

Kessel, G.J.T., Meijer, E.M.J., Dewey, F.M., Goudriaan, J., ...

Evaluation of microbial antagonists for biological control of Botrytis cinerea stem infection in cucumber and tomato (1999)

Dik, A., Koning, G., Köhl, J.

Inventarisatie en preventie van de belangrijkste bladvlekkenziekten in tarwe, Pyrenophora tritici-repentis (DTR) en Septoria tritici (1999)

Kema, G.H.J., Köhl, J., Kastelein, P., Tamis, W.L.M.

Quantification of mycelium of Botrytis elliptica and the antagonist Ulocladium atrum in necrotic lily tissue by fluorescence microscopy and image analysis (1999)

Kessel, G.J.T., Meijer, E.M.J., Köhl, J.

Screening techniques for the selection of the Botrytis antagonist Ulocladium atrum (1999)

Competitive ability of the antagonists Ulocladium atrum and Gliocladium roseum at temperature favourable for Botrytis spp. development (1999)

Köhl, J., Molhoek, W.M.L., Kessel, G.J.

Biologische Bekämpfung von Botrytis cinerea mit Ulocladium atrum in Reben und Cyclamen (1999)

Schoene, P., Köhl, J.

Biological control of Botrytis cinerea by suppression of sporulation (1998)

Biologische Bekämpfung von Botrytis cinerea in Cyclamen durch Ulocladium atrum (1998)

Köhl, J., Grit, G., Gerlagh, M.

Biological control of Botrytis cinerea in cyclamen with Ulocladium atrum and Gliocladium roseum under commercial growing conditions (1998)

Köhl, J., Gerlagh, M., Krijger, M.C.

Biological control of Botrytis cinerea by suppression of sporulation (1998)

Köhl, J., Fokkema, N.J.

Biological control of necrotrophic foliar fungal pathogens (1998)

Köhl, J., Fokkema, N.J.

The survival and saprophytic competitive ability of the Botrytis spp. antagonist Ulocladium atrum in lily canopies (1998)

Elmer, P.A.G., Köhl, J.

Quantification of fungal biomass of a pathogen and an antagonist in necrotic leaf tissue using fluorescence microscopy and image analysis (1997)

Kessel, G.J.T., Meijer, E.M.J., Köhl, J.

Biologische bestrijding van Botrytis cinerea in cyclamen (1997)

Biologische bestrijding van Botrytis spp. in ui, aardbei en cyclamen door Ulocladium atrum (1997)

Köhl, J., Gerlagh, M., Molhoek, W.M.L., Artz, A.

Interaction of four antagonistic fungi with Botrytis aclada in dead onion leaves: A comparative microscopic and ultrastructural study (1997)

Köhl, J., Bélanger, R.R., Fokkema, N.J.

Schimmel bestrijdt schimmel (1997)

Jansen, M., Köhl, J.

Schimmels met schimmels bestrijden (1996)

Molhoek, W.M.L., Köhl, J.

Biological control of Botrytis cinerea in cucumber and tomato (1995)

Dik, A.J., Köhl, J., Fokkema, N.J., Elad, Y., Shtienberg, D.

Biological control of Botrytis cinerea in cucumber and tomato (1995)

Dik, A.J., Köhl, J., Fokkema, N.J., Elad, Y., Shtienberg, D.

Biological control of Botrytis elliptica in lily, a systems analytical approach (1995)

Wound protection by antagonists against Botrytis stem rot in cucumber and tomato (1995)

Koning, G.P., Köhl, J.

Biologische bestrijding van Botrytis en Sclerotinia sclerotiorum (1995)

Effect of interrupted leaf wetness periods on suppression of sporulation of Botrytis allii and 8. cinerea by antagonists on dead onion leaves (1995)

Effects of antagonists on sporulation of Botrytis cinerea on dead lily leaves under different field conditions (1995)

Suppression of sporulation of Botrytis spp. as a valid biocontrol strategy (1995)

Effect of Ulocladium atrum and other antagonists on sporulation of Botrytis cinerea on dead lily leaves exposed to field conditions (1995)