A model is presented for predicting the number of cotton fruit damaged per day by reproducing female boll weevils,Anthonomus grandisBoheman. The model separately considers the egg production and the oviposition processes of the female boll weevil. The oviposition process depends on the availability of eggs in the oviducts, preferential site selection, and the availability of sites. Components of behavior for individual female boll weevils are considered and expected crop damage is projected for population of insects. Data are presented and compared with simulated results and the sensitivity of the model to changes in pertinent parameters is discussed.