SIMULATING CHLOROPICRIN DISTRIBUTION IN WOOD POLES

The practice of using fumigants to control internal decay has been wid ely accepted in the United States and has been shown to be effective i n controlling internal decay in transmission poles and other large woo d timbers. Mathematical models were developed to simulate chloropicrin movement in utility poles after treatment. The simulation results ind icated that treatment of utility poles, using either traditional remed ial treatment procedures or center-bore application procedures could p rovide long-term effectiveness in terms of eliminating existing infect ion and preventing further fungal attack. Controlled-release technolog y used in fumigant treatment was also shown to be potentially useful i n reducing the amount of chemical used in treatments and also for exte nding the useful period of protection.