| For 2020 and newer grants, please go to https://grants.ipmcenters.org/ |
|---|
|
|
| Home Current RFAs PD User Guide Projects Login |
|
Funded Project |
|
Funding Program:
Regional IPM Competitive Grants - Northeastern |
|
Project Title:
Integrated Management of Immigrant Phytophthora infestans: Area Wide Systems |
Project Directors (PDs):
|
|
Lead State: NY Lead Organization: Cornell University |
|
Cooperating State(s):
Connecticut |
| Research Funding: $50,430 |
|
Start Date: Sep-15-1996 End Date: Aug-31-1998 |
|
Pests Involved: late blight |
|
Site/Commodity: potatoes |
|
Area of Emphasis: forecasting, modeling |
|
Summary:
The major goal of this project is to develop an area-wide late blight management system that is sensitive to weather forecasts and is adjusted to the characteristics of the immigrant strains. In order to accomplish this overall objective, it is important to understand the characteristics of immigrant strains and to develop knowledge of dispersal.
Objectives: The epidemiological characteristics of immigrant strains will be compared to those of indigenous strains. Such factors as latent period, lesion growth rate, sporulation, response to temperature, response to solar radiation, and relative humiidy will all be monitored in laboratory and field experiments. These data will then be used in a system of models (including particulate dispersal in a region, and a model of late blight development) to investigate probabilities of inoculum influx, and late blight development. Thus a combination of field experiments, laboratory and greenhouse experiments, and computer simulation will be necessary to accomplish the overall objectives. Impact The impact of solar radiation on the survival of sporangia of Phytophthora was quantified. They survive only a short time when exposed to direct solar radiation. However, when radiation is filtered through a heavy cloud cover, sporangia can survive a long time. Thus the dispersal of sporangia on cloudy days could be quite some distance (miles). Publications Mizubuti, E.S.G., D.E. Aylor, and W.E. Fry. 2000. Survival of Phytophthora infestans sporangia exposed to solar radiation. Phytopathology 90:78-84. Jaime-Garcia, R., R.M. Davis, and W.E. Fry. 1999. Effect of solar radiation on survival of Phytophthora infestans sporangia under glass and plastic greenhouse conditions. Phytopathology 89(suppl.):S36. A related project was funded in 1998. |
| Close Window |
|
Northeastern IPM Center 340 Tower Road Cornell University Ithaca, NY 14853 NortheastIPM.org |
 |
Developed by the Center for IPM © Copyright CIPM 2004-2026 |
|