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Neutralisation of herbicides. Effects on wall vegetation
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Abstract(s)
The chemical control of wall vegetation growing on monuments has been stated
as a suitable instrument of conservative intervention. However, often the use of
herbicides has not been the most suitable, endangering either the environment or
the monument in question. In particular, when dealing with limestone
monuments, the chemical control has to be made very carefully because all the
carbonate rocks are particularly sensitive to the weathering action of acids. Thus.
to prevent this damage, two acid herbicides were neutralised with potassium
hydroxide. This neutralisation did. in fact, decrease the damage caused by their
acidity on the limestone. This paper deals with the effects of these neutralised
herbicides on higher plants. Several experiments were made to determine whether
the efficiency of the herbicides was affected. Also. the neutralisation did not
affect the ability of the herbicides to eliminate the wall vegetation.
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Citation
Mouga, T.M.; Almeida, M.T.. 1997. "Neutralisation of herbicides. Effects on wall vegetation", International Biodeterioration & Biodegradation 40, 2-4: 141 - 149. doi: 10.1016/S0964-8305(97)00040-1