Rival Tech® the Professional manufacturer have worked for 5 layer polyethylene,Website:http://www.rival-tech-bj.com, EVOH fumigation film solution. As the industry moves away from methyl bromide used to control weeds, pests and diseases… we need totally impermeable film has become a necessity. Results indicate that after using fumigation film, effectively inhibit weeds, pests and diseases… will still maintaining efficacy and yields.