Research and IPM
Phenology Model Database
Columbia Root Knot Nematode
Scientific name: Meloidogyne chitwoodi
Phenology models predict timing of events in an organism's development. For many organisms which cannot internally regulate their own temperature, development is dependent on temperatures to which they are exposed in the environment.Information in this database comes from published articles. It may be used in conjunction with field monitoring and a degree-day calculator.
Note: Before using a model that was not field tested in your location, you should test the model for one or more seasons under your conditions to verify that it will work for you.
Model 1 of 1
Pinkerton, J. N., G. S. Santo, and H. Mojtahedi. 1991. Population dynamics of Meloidogyne chitwoodi on Russet Burbank potatoes in relation to degree-day accumulation. J. Nemat. 23: 283-290.
Location of study: Washington (field and laboratory studies)
Method of calculation: Max-min (UC IPM recommends Single Sine)
Degree-day accumulations required for each stage of development
Annual maximum and minimum soil temperatures at 15 cm deep were 21 to 22°C and -1 to 0°C.