Imperial College London
Michael J Jeger

Michael J Jeger

Faculty of Natural Sciences, Department of Life Sciences (Silwood Park)

Emeritus Professor of Horticulture
 
 
 
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Contact

 

+44 (0)1398 332 941m.jeger Website

 
 
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Location

 

Home working 13 Brook Street, Bampton, Devon EX16 9LUSilwood ParkSilwood Park

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Summary

 

Publications

Publication Type
Year
to

271 results found

Jeger M, 2008, Modeling transmission: Disentangling the ecological trinity of plant host, virus and vector, 100th Annual Meeting of the American-Phytopathological-Society, Publisher: AMER PHYTOPATHOLOGICAL SOC, Pages: S189-S189, ISSN: 0031-949X

Conference paper

Jeger MJ, Lamour A, Gilligan CA, Otten Wet al., 2008, A fungal growth model fitted to carbon-limited dynamics of <i>Rhizoctonia solani</i>, NEW PHYTOLOGIST, Vol: 178, Pages: 625-633, ISSN: 0028-646X

Journal article

Pautasso M, Jeger MJ, 2008, Epidemic threshold and network structure: The interplay of probability of transmission and of persistence in small-size directed networks, ECOLOGICAL COMPLEXITY, Vol: 5, Pages: 1-8, ISSN: 1476-945X

Journal article

Jeger MJ, Pautasso M, 2008, Plant disease and global change - the importance of long-term data sets, NEW PHYTOLOGIST, Vol: 177, Pages: 8-11, ISSN: 0028-646X

Journal article

Vereijssen J, Schneider JHM, Jeger MJ, 2007, Epidemiology of Cercospora leaf spot on sugar beet: Modeling disease dynamics within and between individual plants, PHYTOPATHOLOGY, Vol: 97, Pages: 1550-1557, ISSN: 0031-949X

Journal article

Lamour A, Termorshuizen AJ, Volker D, Jeger MJet al., 2007, Network formation by rhizomorphs of Armillaria lutea in natural soil: Their description and ecological significance, Pages: 222-232, ISSN: 0168-6496

Armillaria lutea rhizomorphs in soil were mapped over areas of 25 m 2 at a Pinus nigra (site I) and a Picea abies (site II) plantation. Rhizomorph density was 4.3 and 6.1 m m-2 soil surface with 84% and 48% of the total rhizomorph length in the mapped area interconnected in a network at site I and site II, respectively. At site I there were only two network attachments to Pinus stumps, but at site II many more to Picea roots and stumps. Anastomoses of rhizomorphs resulted in cyclic paths, parts of the network that start and end at the same point. Connections between different rhizomorph segments were shown to allow gaseous exchange. The network at site I consisted of 169 rhizomorphs ('edges'), and 107 rhizomorph nodes ('vertices'). Disruption of two critical edges ('bridges') would lead to large parts (13% and 11%) being disconnected from the remainder of the mapped network. There was a low probability that amputation of a randomly chosen edge would separate the network into two disconnected components. The high level of connectedness may enhance redistribution of nutrients and provide a robust rhizomorph structure, allowing Armillaria to respond opportunistically to spatially and temporally changing environments. © 2007 Federation of European Microbiological Societies.

Conference paper

Lamour A, Termorshuizen AJ, Volker D, Jeger MJet al., 2007, Network formation by rhizomorphs of <i>Armillaria lutea</i> in natural soil:: their description and ecological significance, FEMS MICROBIOLOGY ECOLOGY, Vol: 62, Pages: 222-232, ISSN: 0168-6496

Journal article

van den Bosch F, Jeger MJ, Gilligan CA, 2007, Disease control and its selection for damaging plant virus strains in vegetatively propagated staple food crops; a theoretical assessment, PROCEEDINGS OF THE ROYAL SOCIETY B-BIOLOGICAL SCIENCES, Vol: 274, Pages: 11-18, ISSN: 0962-8452

Journal article

Vereijssen J, Schneider JHM, Jeger MJ, 2007, Supervised control of Cercospora leaf spot in sugar beet, CROP PROTECTION, Vol: 26, Pages: 19-28, ISSN: 0261-2194

Journal article

Jeger MJ, Pautasso M, Holdenrieder O, Shaw MWet al., 2007, Modelling disease spread and control in networks: implications for plant sciences, NEW PHYTOLOGIST, Vol: 174, Pages: 279-297, ISSN: 0028-646X

Journal article

Vereijssen J, Schneider JHM, Stein A, Jeger MJet al., 2006, Spatial pattern of Cercospora leaf spot of sugar beet in fields in long- and recently-established areas, EUROPEAN JOURNAL OF PLANT PATHOLOGY, Vol: 116, Pages: 187-198, ISSN: 0929-1873

Journal article

Van den Bosch F, Akudibilah G, Seal S, Jeger Met al., 2006, Host resistance and the evolutionary response of plant viruses, JOURNAL OF APPLIED ECOLOGY, Vol: 43, Pages: 506-516, ISSN: 0021-8901

Journal article

Holb IJ, Heijne B, Jeger MJ, 2006, Effects of integrated control measures on earthworms, leaf litter and <i>Venturia inaequalis</i> infection in two European apple orchards, AGRICULTURE ECOSYSTEMS & ENVIRONMENT, Vol: 114, Pages: 287-295, ISSN: 0167-8809

Journal article

Seal SE, vandenBosch F, Jeger MJ, 2006, Factors influencing begomovirus evolution and their increasing global significance: Implications for sustainable control, CRITICAL REVIEWS IN PLANT SCIENCES, Vol: 25, Pages: 23-46, ISSN: 0735-2689

Journal article

Seal SE, Jeger MJ, Van den Bosch F, 2006, Begomovirus evolution and disease management, PLANT VIRUS EPIDEMIOLOGY, Vol: 67, Pages: 297-316, ISSN: 0065-3527

Journal article

Jeger MJ, Seal SE, Van den Bosch F, 2006, Evolutionary epidemiology of plant virus disease, PLANT VIRUS EPIDEMIOLOGY, Vol: 67, Pages: 163-203, ISSN: 0065-3527

Journal article

Holb IJ, Heijne B, Withagen JCM, Gáll JM, Jeger MJet al., 2005, Analysis of summer epidemic progress of apple scab at different apple production systems in the Netherlands and Hungary, PHYTOPATHOLOGY, Vol: 95, Pages: 1001-1020, ISSN: 0031-949X

Journal article

Holb IJ, Heijne B, Jeger MJ, 2005, The widespread occurrence of overwintered conidial inoculum of <i>Venturia inaequalis</i> on shoots and buds in organic and integrated apple orchards across the Netherlands, EUROPEAN JOURNAL OF PLANT PATHOLOGY, Vol: 111, Pages: 157-168, ISSN: 0929-1873

Journal article

Wijngaarden PJ, van den Bosch F, Jeger MJ, Hoekstra RFet al., 2005, Adaptation to the cost of resistance: a model of compensation, recombination, and selection in a haploid organism, PROCEEDINGS OF THE ROYAL SOCIETY B-BIOLOGICAL SCIENCES, Vol: 272, Pages: 85-89, ISSN: 0962-8452

Journal article

Holb IJ, Heijne B, Withagen JCM, Jeger MJet al., 2004, Dispersal of <i>Venturia inaequalis</i> ascospores and disease gradients from a defined inoculum source, JOURNAL OF PHYTOPATHOLOGY, Vol: 152, Pages: 639-646, ISSN: 0931-1785

Journal article

Jeger MJ, Holt J, Van den Bosch F, Madden LVet al., 2004, Epidemiology of insect-transmitted plant viruses: modelling disease dynamics and control interventions, PHYSIOLOGICAL ENTOMOLOGY, Vol: 29, Pages: 291-304, ISSN: 0307-6962

Journal article

Jeger MJ, Holt J, Van den Bosch F, Madden LVet al., 2004, Epidemiology of insect-transmitted plant viruses: modelling disease dynamics and control interventions, PHYSIOL ENTOMOL, Vol: 29, Pages: 291-304

Plant viruses are an important constraint to crop production world-wide. Rarely have plant virologists, vector entomologists and crop specialists worked together in search of sustainable management practices for viral diseases. Historically, modelling approaches have been vector-based dealing with empirical forecasting systems or simulation of vector population dynamics. More recently, epidemiological models, such as those used in human/animal epidemiology, have been introduced in an attempt to characterize and analyse the population ecology of viral diseases. The theoretical bases for these models and their use in evaluating control strategies in terms of the interactions between host, virus and vector are considered here. Vector activity and behaviour, especially in relation to virus transmission, are important determinants of the rate and extent of epidemic development. The applicability and flexibility of these models are illustrated by reference to specific case studies, including the increasing importance of whitefly-transmitted viruses. Some outstanding research and methodological issues are considered.

Journal article

Holb IJ, Heijne B, Jeger MJ, 2004, Overwintering of conidia of <i>Venturia inaequalis</i> and the contribution to early epidemics of apple scab, PLANT DISEASE, Vol: 88, Pages: 751-757, ISSN: 0191-2917

Journal article

Jeger MJ, Termorshuizen AJ, Nagtzaam MPM, Van den Bosch Fet al., 2004, The effect of spatial distributions of mycoparasites on biocontrol efficacy: a modelling approach, BIOCONTROL SCIENCE AND TECHNOLOGY, Vol: 14, Pages: 359-373, ISSN: 0958-3157

Journal article

Gilijamse E, Raaijmakers JM, Geerds CF, Jeger MJet al., 2004, Influence of environmental factors on the disease cycle of white rust, caused by <i>Albugo candida</i>, Editors: SpencerPhillips, Jeger, Publisher: SPRINGER, Pages: 107-118, ISBN: 1-4020-2657-9

Book chapter

Jeger MJ, 2004, Analysis of disease progress as a basis for evaluating disease management practices, ANNUAL REVIEW OF PHYTOPATHOLOGY, Vol: 42, Pages: 61-82, ISSN: 0066-4286

Journal article

Meekes ETM, Jeger MJ, Raaijmakers JM, 2004, Host specialisation of the oomycete <i>Albugo candida</i>, Editors: SpencerPhillips, Jeger, Publisher: SPRINGER, Pages: 119-139, ISBN: 1-4020-2657-9

Book chapter

Holb IJ, Heijne B, Jeger MJ, 2003, Summer epidemics of apple scab: The relationship between measurements and their implications for the development of predictive models and threshold levels under different disease control regimes, JOURNAL OF PHYTOPATHOLOGY-PHYTOPATHOLOGISCHE ZEITSCHRIFT, Vol: 151, Pages: 335-343, ISSN: 0931-1785

Journal article

Otieno W, Termorshuizen A, Jeger M, Othieno COet al., 2003, Efficacy of soil solarization, <i>Trichoderma harzianum</i>, and coffee pulp amendment against <i>Armillaria</i> sp., CROP PROTECTION, Vol: 22, Pages: 325-331, ISSN: 0261-2194

Journal article

Otieno W, Jeger M, Termorshuizen A, 2003, Effect of infesting soil with <i>Trichoderma harzianum</i> and amendment with coffee pulp on survival of <i>Armillaria</i>, BIOLOGICAL CONTROL, Vol: 26, Pages: 293-301, ISSN: 1049-9644

Journal article

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