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Phenology Model Database

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Cereal Leaf Beetle

Scientific name: Oulema melanopus

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

Guppy, J. C., and D. G. Harcourt. 1978. Effects of temperature on development of the immature stages of the cereal leaf beetle, Oulema melanopus (Coleoptera: Chrysomelidae). Can. Ent. 110: 257-263.

Location of study: Ottawa, Canada (laboratory & field studies)

Developmental thresholds

Lower: 44.6°F ( 7.0°C)

Upper: 86.0°F (30.0°C)

Method of calculation: not specified (UC IPM recommends Single Sine)

Cutoff method: not specified (UC IPM recommends Horizontal)

Degree-day accumulations required for each stage of development

Host: Barley DD (°F) DD (°C)

Eggs: 189.0 105.0

Larvae: 298.8 166.0

Pupae: 507.6 282.0

Generation time (egg to adult): 995.4 553.0

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