In the past we have instinctively reached for the chemical spray and the brush on liquids. We have used chemical fumigants because they were the only option available to us. Health and environmental concerns were largely unknown. This is changing on an international scale and we must all be prepared to investigate all possible alternatives. One thing is certain, the tide is turning against chemical solutions to common problems.
Lets look at a couple of examples.
Methyl Bromide has been a common fumigant now for many years but currently is subject to international limitation talks prior to a planned phase out. In 1994 United Nations scientists identified elimination of methyl bromide as the most significant remaining step to reduce ozone loss. Arguments continue because of the considerably diverse uses that Methyl Bromide can be used for. There will not be one single alternative to Methyl Bromide treatment there will have to be many. Buildings are fumigated with it so are ships and aircraft.