Because of the cost and difficulty involved in eradicating the boll weevil (Anthonomus grandis) from designated zones, the threat of reintroduction and reinfestation is always of concern. As several eradication zones in Texas approach functional eradication, there has been growing unease at the prospect that gins serving customers in neighboring infested zones may serve as sites for reintroduction of weevils. We began a series of experiments in three regions of Texas designed to determine the potential for boll weevil transport on or in cotton modules to the gin yard. Surveys indicated that there were surprising numbers of adult weevils present in defoliated cotton just prior to harvest, especially if green bolls were still present on the plants. Live weevils were recovered in samples of harvested cotton taken from module builders, and averages of calculated weevils per module in the three different areas of Texas ranged from 203 to 3,750, and weevils calculated to be on the surface ranged from 3 to 52. The latter represent weevils that could disperse from the module during or after transport to the gin. We released marked weevils on the top (under a tarp) and sides (not under a tarp) of stationary modules and estimated the percentage of weevils that dispersed within 10-24 hr. In another experiment, marked weevils were released on the top, side, and end of a module which was then transported 6 or 30 miles. Our results indicate that most weevils disperse from the release sites if temperatures are warm enough -- by flight if not under a tarp, by walking and burrowing if under a tarp on top of the module. Most weevils died under the tarp when temperatures were high, but some were unaccounted for and may have escaped lethal temperatures by burrowing into the loose cotton on top of the module. Overall, our results indicate that one can expect at least a small number of weevils to make it to the gin alive inside a module depending on the starting population of weevils in the defoliated cotton. The percentage of weevils remaining on the surface of a module from the time of its construction can be expected to decrease the longer the module remains in the field, especially with high (>80^oF) temperatures, because of the observed high propensity of weevils to disperse from modules by flight.