1. General Model Information

Name: Boll Weevil DISPersal model

Acronym: BWDISP

Main medium: terrestrial
Main subject: biogeochemistry
Organization level: ecosystem
Type of model: not specified
Main application:
Keywords: pests, insect, boll weevil, stochastic model


Gerald H. McKibben
P.O. Box 5367
Mississippi State University, MS 39762
Telephone: 601-323-2230
Fax: 601-324-1695


McKibben, G.H., J.L. Willers, J.W. Smith and T.L.Wagner


The BWDISP (Boll Weevil DISPersal) model is a stochastic simulation model that predicts the spread of boll weevil populations on cotton, given certain weather conditions (McKibben et al., 1991).

The model requires weather data (daily maximum and minimum temperature), wind speed and cotton field size as input data. Output of the model includes a probability distribution for the boll weevil population dispersal.

Author of the abstract:


II. Technical Information

II.1 Executables:

Operating System(s): DOS

II.2 Source-code:

Programming Language(s): Basic and LISP

II.3 Manuals:

II.4 Data:

III. Mathematical Information

III.1 Mathematics

III.2 Quantities

III.2.1 Input

III.2.2 Output

IV. References

McKibben, G.H., J.L. Willers, J.W. Smith and T.L.Wagner. 1991. Stochastic model for studying boll weevil dispersal. Environ.Ent. 20(5):1327-1332.

V. Further information in the World-Wide-Web

VI. Additional remarks

Global change implications:The boll weevil is one of the mostcrop-damaging insects that models have been developed to study. Because the development and dispersal of this insect is sensitiveto temperature, it will be important to understand how thisinsect will potentially respond to climate change. In addition,without proper management of this pest, other secondary pests(primarily bollworms) may attack the crop.

Last review of this document by: T. Gabele: 22. 6. 1997 -
Status of the document:
last modified by Tobias Gabele Wed Aug 21 21:44:40 CEST 2002

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