Research and IPM

Phenology Model Database

Cabbage Aphid

Scientific name: Brevicoryne brassicae

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

Raworth, D. A. 1984. Population dynamics of the cabbage aphid, Brevicoryne brassicae (Homoptera: Aphididae) at Vancouver, British Columbia. II. Development, fecundity, and longevity. Can. Ent. 116: 871-878.

Location of study: Vancouver, British Columbia (laboratory & field studies)

Developmental threshold

Lower:	44.1°F	(6.7°C)

Method of calculation: Max-min (UC IPM recommends Single Sine)

Degree-day accumulations required for each stage of development

Laboratory data:
Host: Kale	DD (°F)	DD (°C)
Generation time (birth to adult):	226.8	126.0
Generation tim (birth to birth):	255.6	142.0
Field data:	DD (°F)	DD (°C)
Generation time (birth to adult):	298.8	166.0

Model 2 of 3

Hughes, R. D. 1963. Population dynamics of the cabbage aphid, Brevicoryne brassicae (L.) J. Anim. Ecol. 32: 393-424.

Location of study: Canberra, Australia (laboratory studies)

Developmental threshold

Lower:	41.0°F	(5.0°C)

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

Degree-day accumulations required for each stage of development

Host: Cabbage	DD (°F)	DD (°C)
Apterous:
Generation time (birth to birth):	253.4	140.8
Alate:
Generation time (birth to birth):	265.8	147.7

Model 3 of 3

Diaber, C. C. 1970. Cabbage aphids in South Africa: the influence of temperature on their biology. Phytophylactica 2: 149-156.

Location of study: South Africa (field studies)

Developmental thresholds

Lower:	42.4°F	( 5.8°C)
Upper:	86.0°F	(30.0°C)

Method of calculation:	Max-min (UC IPM recommends Single Sine)
Cutoff method:	not specified (UC IPM recommends Horizontal)

Degree-day accumulations required for each stage of development

Host: Cabbage	DD (°F)	DD (°C)
Generation time (birth to birth)	273.6	152.0