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Phenology Model Database


Fuller Rose Beetle

Scientific name: Asynonychus godmani (Pantomorus cervinus)

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

Lakin, K. R., and J. G. Morse. 1989. A degree-day model for Fuller's rose beetle, Pantomorus cervinus (Boheman) (Col., Curculionidae) egg hatch. J. Appl. Ent. 107: 102-106.

Location of study: California (laboratory studies)

Developmental thresholds

Method of calculation:not specified (UC IPM recommends Single sine)
Cutoff method:not specified (UC IPM recommends Horizontal)

Start date: Count the days prior to harvest.DD (°F)DD (°C)
Treat: Preharvest foliar spray*632.5351.4

Degree-day accumulations required for each stage of development
Host: GrapefruitDD (°F)DD (°C)
99% egg hatch:632.5351.4

* See UC IPM Pest Management Database for most recent recommendations.

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