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Jørgensen, L. N. & Olsen, L. V. (2004). Sygdomsangreb 2004. In L. N. Jørgensen & K. J. Fertin (Eds.), Pesticidafprøvning 2004. Landbrugsafgrøder (pp. 13-16). Aarhus University.

Pinnschmidt, H. (2004). Sygdom truer økologisk udsæd. Økologisk Jordbrug, 24(313), 6-6.

Rasmussen, I. A. (2004). Tema-artikler om økologisk forskning. Økologisk Jordbrug, 24(307), 6-6.

Rasmussen, I. A. (2004). Temasider om forskning i økologisk jordbrug. FØJO e-Nyt, 2004(1), 1-1.

Graham, J. H., Ravnskov, S. & Larsen, J. (2004). Testing models for mycorrhiza-Pythium interactions in tomato roots. In Development of Biocontrol Agents of Diseases for Commercial Applications in Food Production Systems (pp. 37)

Steenberg, T., Kilpinen, O. & Moore, D. (2004). The effect of ammonia on conidial longevity of Beauveria bassiana and Metarhizium anisopliae. In 37th annual meeting of the Society for Invertebrate Pathology, Helsinki, Finland

Rasmussen, I. A. (2004). The effect of sowing date, stale seedbed, row width and mechanical weed control on weeds and yields of organic winter wheat. Weed Research, 44(1), 12-20. https://doi.org/10.1046/j.1365-3180.2003.00367.x

Pinnschmidt, H. (2004). The expression of resistance in a variable environment - case barley leaf blights. In J. H. Czembor, T. Goral, P. C. Czembor, Z. Tomaszewski & M. Chudy (Eds.), Resistance of cereals to biotic stressess (pp. 45-46)

Paaske, K. & Larsen, J. (2004). The fungal biocontrol agent Ulocladium atrum prevents grey mould development in pot plants. Poster session presented at NJF seminar, Odense, Denmark.

Fomsgaard, I. S. (2004). The Influence of Sorption on the Degradation of Pesticides and other Chemicals in Soil. Danish Ministry of the Environment, Environmental Protection Agency. Environmental Project No. 902

Danielsen, C., Hansen, L. S., Nachman, G. & Herling, C. (2004). The influence of temperature and relative humidity on the development of Lepidoglyphus destructor (Acari: Glycyphagidae) and its production of allergens: a laboratory experiment. Experimental & Applied Acarology, 32(3), 151-170. https://doi.org/10.1023/B:APPA.0000021797.45372.64

Wang, J., Hansen, P. K., Christensen, S. & Qi, G. (2004). The Mathematical Method of Studying the Reproduction Structure of Weeds and its Application to Bromus sterilis. Discrete and Continuous Dynamical Systems. Series B, 4(3), 779-790.

Enkegaard, A. (2004). The research program on resource minimisation in the ornamental production. Poster session presented at NJF Workshop, Odense, Denmark.

Birkett, M. A., Agelopoulos, N., Jensen, K.-M. V., Jespersen, J. B., Pickett, J. A., Prijs, H.-J., Thomas, G., Trapman, J. J., Wadhams, L. J. & Woodcock, C. M. (2004). The role of volatile semiochemicals in mediating host location and selection by nuisance and disease-transmitting cattle flies. Medical & Veterinary Entomology, 18(4), 313-322. https://doi.org/10.1111/j.0269-283X.2004.00528.x

Kudsk, P. & Mathiassen, S. K. (2004). The use of adjuvants to optimise herbicide performance under adverse conditions. Abstract from International Weed Science Congress, Durban, South Africa. http://iws.ucdavis.edu/IWSC04%20Abstracts%20Part1.pdf

Pinnschmidt, H., Nielsen, B. J. & Hansen, H. J. (2004). Thresholds for net blotch infestation in organic barley seed production. In F. Lammerts van Bueren, R. Ranganathan & N. Sorensen (Eds.), Challenges and Opportunities for Organic Agriculture and the Seed Industry (pp. 184)

Fomsgaard, I. S., Mortensen, A. G., Gents, M. B. & Understrup, A. (2004). Time-dependent transformation of varying concentrations of the hydroxamic acid metabolites MBOA and BOA in soil. In Proceedings of the Second European Allelopathy Symposium. Allelopathy - from understanding to application (pp. 61-63)

Jørgensen, L. N. (2004). Toksiner i korn. Planteavlsberetning, 2004, 45-50.

Meerburg, B. G., Bonde, M., Brom, F. W. A., Endepols, S., Jensen, A. N., Leirs, H., Lodal, J., Singleton, G. R., Pelz, H.-J., Rodenburg, T. B. & Kijlstra, A. (2004). Towards sustainable management of rodents in organic animal husbandry. Netherlands Journal of Agricultural Sciences, 52(2), 195-205. http://library.wur.nl/ojs/index.php/njas/article/view/354/73

Nicolaisen, M. (2004). Transmission of Branch-inducing Phytoplasma PoiBI from Poinsettia (Euphorbia pulcherrima) to Crown-of-Thorns (E. milii). HortScience, 39, 551-552.

Christensen, N., Nicolaisen, M., Hansen, M. & Schulz, A. (2004). Transmission of Phytoplasma from host to parasite studies by real-time PCR and Confocal microscopy. Poster session presented at Plasmodesmata, International Conference, Pacific Grove, California, United States.

Pedersen, B. P. & Lövei, G. (2004). Tri-trophic effects of aphid-resistant wheat on a generalist predator, Pardosa amentata. In F. Samu & C. Szinetár (Eds.), European Arachnology 2002 (pp. 109-115)

Nielsen, S. L. & Larsen, J. (2004). Two Tricoderma harzianum-based bio-control agents reduce tomato root infection with Spongospora subterranea (Wallr.) Lagerh., f. sp. subterranea, the vector of Potato mop-top virus. Zeitschrift für Pflanzenkrankheiten und Pflanzenschutz (1970), 111(2), 145-150.

Olesen, J. E., Askegaard, M. & Rasmussen, I. A. (2004). Udbyttet i økologiske sædskifter bestemmes af kvælstof og ukrudt. FØJO e-Nyt, (2). http://www.foejo.dk/enyt2/enyt/juni04/udbytte.html

Rasmussen, I. A. & Askegaard, M. (2004). Ukrudtets udvikling i de økologiske sædskifteforøsg. FØJO e-Nyt, 2004(6).

Hansen, P. B. H. & Sørensen, S. C. (2004). Ukrudt og afgrødeetablering i ukrudtsforsøg i vækståret 2003/2004 i Vestsjælland. In L. N. Jørgensen & K. J. Fertin (Eds.), Pesticidafprøvning 2004. Landbrugsafgrøder (pp. 17-19). Aarhus University.

Sørensen, S., Petersen, O. E. & Hansen, A. (2004). Ukrudt og afgrødeetablering i vækståret 2002/2003 i Vestsjælland. In L. N. Jørgensen & P. E. Jensen (Eds.), Pesticidafprøvning 2003. Landbrugsafgrøder (pp. 17-19)

Hartvig, P. (2004). Ukrudtsbekæmpelse i have- og skovbrug. In K. H. Madsen & J. Jakobsen (Eds.), Ukrudtsbogen (4 ed., pp. 263-270). Aarhus University.

Melander, B. (2004). Ukrudtsbekæmpelse med rækkedampning. In Planteproduktion 2004: Månedsmagasinet MARK, januar 2004 (pp. 51) http://www.lr.dk/planteavl/diverse/PLK04_5_1_B_Melander.pdf

Fertin, K. (2004). Ukrudtsbekæmpelse, nedvisning og vækstregulering i landbrugsafgrøder. In L. N. Jørgensen & K. J. Fertin (Eds.), Pesticidafprøvning 2004. Landbrugsafgrøder (pp. 113-148). Aarhus University.

Jensen, P. E. (2004). Ukrudtsbekæmpelse, nedvisning og vækstregulering i landbrugsafgrøder. In L. N. Jørgensen & P. E. Jensen (Eds.), Pesticidafprøvning 2003. Landbrugsafgrøder (pp. 101-121)

Hansen, P. K., Hartvig, P. & Kristoffersen, P. (2004). Ukrudtsbekæmpelse på ikke-dyrkede arealer. In K. H. Madsen & J. Jakobsen (Eds.), Ukrudtsbogen (4 ed., pp. 299-306). Aarhus University.

Madsen, K. H. & Jakobsen, J. (Eds.) (2004). Ukrudtsbogen. (4 ed.) Aarhus University.

Mathiassen, S. K., Kudsk, P., Jensen, P. E. & Fertin, K. (2004). Ukrudt - sidste nyt fra Danmarks JordbrugsForskning. In Planteproduktion 2004: Månedsmagasinet MARK, januar 2004 (pp. 34) http://www.lr.dk/planteavl/diverse/PLK04_3_3_S_K_Mathiassen.pdf

Mathiassen, S. K., Kudsk, P., Jensen, P. E. & Fertin, K. (2004). Ukrudt - sidste nyt fra Danmarks JordbrugsForskning. In Plantebeskyttelse 1: DJF rapport Markbrug nr. 98 (pp. 95-104) http://web.agrsci.dk/djfpublikation/djfpdf/djfma98.pdf

Rasmussen, I. A., Holst, N., Graglia, E., Hansen, P. K., Melander, B., Mathiassen, S. K., Kudsk, P., Jensen, P. K., Boelt, B. & Madsen, K. H. (2004). Ukrudtsøkologi og -biologi. In K. H. Madsen & J. Jakobsen (Eds.), Ukrudtsbogen (4 ed., pp. 19-42). Aarhus University.

Pinnschmidt, H. (2004). Variability of scald resistance in spring barley cultivars as affected by the environment and the pathogen population. In A. H. Yahyaoui, L. Brader, A. Tekauz, H. Wallwork & B. Steffenson (Eds.), Meeting the challenges of barley blight (pp. 223-248)

Jensen, K.-M. V., Jespersen, J. B., Birkett, M. A., Pickett, J. A., Thomas, G., Wadhams, L. J. & Woodcock, C. M. (2004). Variation in the load of the horn fly, Haematobia irritans, in cattle herds is determined by the presence or absence of individual heifers. Medical & Veterinary Entomology, 18, 275-280. https://doi.org/10.1111/j.0269-283X.2004.00506.x

Petersen, P. H., Jensen, P. K., Nielsen, G. C., Jørgensen, L. N., Nielsen, S. F. & Paaske, K. (Eds.) (2004). Vejledning i planteværn. Landbrugsforlaget.

Jensen, P. E. (2004). Verdens mest avancerede forsøgssprøjte. MånedsMagasinet Mark, (6), 31-31.

Nielsen, E. M., Skov, M. N., Madsen, J. J., Lodal, J., Jespersen, J. B. & Baggesen, D. L. (2004). Verocytotoxin-Producing Escherichia coli in Wild Birds and Rodents in Close Proximity to Farms. Applied and Environmental Microbiology, 70(11), 6944-6947. https://doi.org/10.1128/AEM.70.11.6944-6947.2004

Jensen, P. K. (2004). Vidensyntese om sprøjteteknik med hovedvægt på afdriftsreducerende dyser samt sprøjter med luftledsagelse og luftsprøjter: Rapport over Erhvervs-finansieret Planteavlsforskning.

Constantin, G. D., Krath, B. N., MacFarlane, S. A., Nicolaisen, M., Johansen, E. & Lund, O. S. (2004). Virus induced gene silencing as a tool for functional genomics in a legume species. Plant Journal, 40(4), 622-631. https://doi.org/10.1111/j.1365-313X.2004.02233.x

Rasmussen, I. A. (2004). Weed management in organic cropping systems. In Goodman, R.M. (ed.): Encyclopedia of Plant and Crop Science. Marcel Dekker, Inc., New York

Enkegaard, A. (2004). WG 'Integrated control in protected crops, temperate climate': Aims of the WG and potential to interact with other WGs. In IOBC/WPRS BULL. 27, 7 (pp. 51-54)

Floate, K. D. & Skovgård, H. (2004). Winter survival of nuisance fly parasitoids (Hymenoptera: Pteromalidae) in Canada and Denmark. Bulletin of Entomological Research, 94(4), 331-340.

Elad, Y., Pertot, I. & Enkegaard, A. (Eds.) (2004). Working Groups "Biological Control of Fungal and Bacterial Plant Pathogens", "Integrated Control i Protected Crops, Temeperate Climate" and "Integrated Control in Protected Crops, Mediterranean Climate": Proceedings of the Meeting "Management of Plant Diseases and Arthropod Pests by BCAs and Their Integration in Agricultural Systems" at S. Michele all'Adige (Trentino, Italy), 9-13 June 2004. IOBC/WPRS.

Jørgensen, L. N. & Pinnschmidt, H. (2004). Yield effects and control of powdery mildew in winter wheat in the presence of Septoria. In Proceedings of the 11th International Cereal Rusts and Powdery Mildews Conference, Norwich, England, 22-27 August 2004 (pp. Abstract 1.42) http://www.crpmb.org/icrpmc11/abstracts.htm

Steenberg, T., Kilpinen, O., Jespersen, J. B., Soler Cruz, M. D., Robles, C. V., Birkett, M., Dewhirst, S. & Pickett, J. (2005). Advances in the development of novel control methods against chicken mites (Dermanyssus gallinae). In Proc. IOBC/wprs Bulletin 28(3) (pp. 89-92)

Wolffhechel, H., Bødker, L. & Nielsen, G. C. (2005). Ærtesorters modtagelighed for ærtesyge-frøsmitte. FØJO e-Nyt, 2005, 2-2.

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Steen Balling Radmer