Research and IPM

Phenology Model Database

Spongy Moth (formerly gypsy moth)

Scientific name: Lymantria dispar

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.

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 3

Johnson, P. C., D. P. Mason, S. L. Radke, and K. T. Tracewski. 1983. Gypsy moth, Lymantria dispar (L.) (Lepidoptera: Lymantriidae), egg eclosion: degree-day accumulations. Environ. Entomol. 12: 929-932.

Location of study: New Hampshire (laboratory studies)

Developmental threshold

Degree-day accumulations required for each stage of development

Start date: January 1

Model 2 of 3

Carter, M. R., F. W. Ravlin, and M. L. McManus. 1992. Effect of defoliation on gypsy moth phenology and capture of male moths in pheromone-baited traps. Environ. Entomol. 21: 1308-1318.

Location of study: Virginia (field studies)

Developmental thresholds

Degree-day accumulations required for each stage of development

Model 3 of 3

Russo, J. M., A. M. Liebhold, and J. G. W. Kelley. 1993. Mesoscale weather data as input to gypsy moth (Lepidoptera: Lymantriidae) phenology model. J. Econ. Entomol. 86: 838-844.

Location of study: Pennsylvania and West Virginia

Developmental thresholds

Degree-day accumulations required for each stage of development

Start date: January 1