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Research and IPM

Phenology Model Database

Hop Vine Borer

Scientific name: Hydraecia immanis

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

Levine, E. 1989. Forecasting Hydraecia immanis (Lepidoptera: Noctuidae) moth phenology based on light trap catches and degree-day accumulations. J. Econ. Entomol. 82: 433-438.

Location of study: Illinois (field and laboratory studies)

Developmental thresholds

Method of calculation:Single Sine
Cutoff method:Horizontal Cutoff

Degree-day accumulations required for each stage of development

Start date: January 1
Host: Artificial Pinto Bean DietDD (°F)DD (°C)
Generation time:3162.21756.8
Host: Seedling Corn  
First catch in light traps:2383.91324.4
10% catch in light traps:2753.51529.7
50% catch in light traps:3171.61762.0
90% catch in light traps:3561.71978.7

Statewide IPM Program, Agriculture and Natural Resources, University of California
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