Search Results - "JEGER, M.J."

Interactions in a host plant-virus–vector–parasitoid system: Modelling the consequences for virus transmission and disease dynamics by Jeger, M.J., Chen, Z., Powell, G., Hodge, S., van den Bosch, F.

“…► An epidemiological model links host plant-virus–vector–parasitoid dynamics. ► Effects of a pheromone alarm signal affect vector dispersal and transmission…”
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Analysis of disease progress as a basis for evaluating disease management practices by Jeger, M.J

“…The relationship between epidemiology and disease management is long-standing but sometimes tenuous. It may seem self-evident that improved understanding of…”
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Disease control and its selection for damaging plant virus strains in vegetatively propagated staple food crops; a theoretical assessment by van den Bosch, F, Jeger, M.J, Gilligan, C.A

“…propagation, diagnostics and breeding methods carry a risk of failure due to the selection for virus strains that build up a high within-plant virus titre. For…”
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Modelling virus- and host-limitation in vectored plant disease epidemics by Jeger, M.J., van den Bosch, F., Madden, L.V.

“…► Early epidemic development constrained by virus limitation. ► Inverse relationship between mean virus titre and transmission. ► Conditions for coexistence of…”
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Impact of the spatial scale of grass–legume mixtures on sheep grazing behaviour, preference and intake, and subsequent effects on pasture by Sharp, J. M., Edwards, G. R., Jeger, M. J.

“…The benefits of using white clover in pastures have been widely recognised for many years. However, clover is perceived as being unreliable because of its…”
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Supervised control of Cercospora leaf spot in sugar beet by Vereijssen, J., Schneider, J.H.M., Jeger, M.J.

“…Two approaches to supervised control of Cercospora leaf spot (CLS) in sugar beet are outlined, and their yield improving capabilities tested in field trials…”
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Combined Use of Biocontrol Agents to Manage Plant Diseases in Theory and Practice by Xu, X.-M, Jeffries, P, Pautasso, M, Jeger, M.J

“…Effective use of biological control agents (BCAs) is a potentially important component of sustainable agriculture. Recently, there has been an increasing…”
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Approaches to integrated crop protection in university education and training by Jeger, M.J.

“…Integrated crop protection represents an approach to the control of pests that places the emphasis on the crop and cropping system rather than the individual…”
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Modelling the dynamics of a plant pathogen and a biological control agent in relation to flowering pattern and populations present on leaves by Jeger, M.J., Xu, X.-M.

“…•We develop an epidemiological model for the biological control of flower diseases.•The model takes into account different timings and patterns of…”
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Spatial dynamics of a monocyclic disease in a perennial crop by Maddison, A.C., Holt, J., Jeger, M.J.

“…A simple model was developed which represented a rectangular, regularly-spaced planting of host trees divided initially into a diseased area and a healthy…”
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Monitoring in banana pest management by Jeger, M.J., Waller, J.M., Johanson, A., Gowen, S.R.

“…Monitoring in banana pest management is an important activity for commercial and/or smallholder banana production. It is required to detect the occurrence of…”
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Effect of Aspergillus niger on shoot emergence and vine development in field-sown yams ( Dioscorea spp.) and rot development under long-term storage conditions by Otusanya, M.O., Jeger, M.J.

“…The effects of infection of seed yam by Aspergillus niger on shoot emergence and vine development were investigated in three yam species. Shoot emergence was…”
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Occurrence and distribution of Peronosclerospora sorghi [Weston and Uppal (Shaw)] in selected countries of West and Southern Africa by Bock, C.H., Jeger, M.J., Mughoho, L.K., Cardwell, K.F., Adenle, V., Mtisi, E., Akpa, A.D., Kaula, G., Mukasambina, D., Blair-Myers, C.

“…Surveys of sorghum and maize crops were undertaken in Nigeria, Zimbabwe, Zambia, Mozambique and Rwanda during 1991 and 1992. The occurrence and prevalence of…”
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Assessing inoculum of soilborne plant pathogens: theory and practice in decision-making for soil disinfestation by Termorshuizen, A. J, Jeger, M. J

“…Inoculum of a pathogen is its biomass available for infection. Inoculum density (ID), usually expressed per unit of volume or (dry) weight of soil, is the…”
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A generic theoretical model for biological control of foliar plant diseases by Jeger, M.J., Jeffries, P., Elad, Y., Xu, X.-M.

“…We have developed a generic modelling framework to understand the dynamics of foliar pathogen and biocontrol agent (BCA) populations in order to predict the…”
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Epidemiology of insect-transmitted plant viruses: modelling disease dynamics and control interventions by Jeger, M.J, Holt, J, Bosch, F. van den, Madden, L.V

“…Plant viruses are an important constraint to crop production world-wide. Rarely have plant virologists, vector entomologists and crop specialists worked…”
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PLANT HEALTH IN THE EUROPEAN UNION: EMERGING RISKS, CHALLENGES, AND FUTURE PERSPECTIVES by Jeger, M.J., Stancanelli, G., Ceglarska, E.

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Strategies of soilborne plant pathogenic fungi in relation to disease suppression by Termorshuizen, A.J., Jeger, M.J.

“…The purpose of classifying pathogens based on ecological traits is that certain generalizations can be made beyond the specific or “model” pathogen that has…”
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Network formation by rhizomorphs of Armillaria lutea in natural soil: their description and ecological significance by Lamour, Angelique, Termorshuizen, Aad J, Volker, Dine, Jeger, Michael J

“…Armillaria lutea rhizomorphs in soil were mapped over areas of 25 m² at a Pinus nigra (site I) and a Picea abies (site II) plantation. Rhizomorph density was…”
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Numerical Studies of Biocontrol Efficacies of Foliar Plant Pathogens in Relation to the Characteristics of a Biocontrol Agent by Xu, X.M, Salama, N, Jeffries, P, Jeger, M.J

“…A previously published generic mathematic model has been used in a numerical study to understand the dynamics of foliar pathogens in relation to mechanisms,…”
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