| Plant growth on the external walls of buildings has | | | | days then given a second brushing to remove |
| often been encouraged especially on older building | | | | The dead vegetation this is far more affective |
| frequently wet walls on more Northern aspects | | | | now the organism is dead |
| will be more prone to growth of moss. | | | | Some types of toxic washes such as |
| Wile lichens will often grow really well in more | | | | copper,carbonate,ammonia solutions are relay |
| southern aspects.in a few cases the growth may | | | | good but may stain some brick or stone try a |
| have been encouraged for its ascetics | | | | small Sample piece first and allow it to dry ,always |
| Plant growth can be quite luxuriant especially were | | | | take care when using chemicals follow the |
| the owners of the property have applied fertilize. | | | | instructions to the letter and take extra care not |
| When such growth become a problem they | | | | to Breath in any over-spay |
| should be removed with a the blade of a old | | | | You may have been advised to use a week |
| knife,spatula,or a stiff fiber brush never steel Wire | | | | solution of hydrochloric acid or muratic acid to |
| .the walling now being clear of all live growth may | | | | remove relay obstinate stains,but The |
| be spayed with a dilute fungicide. a green house | | | | indiscriminate use of such powerful chemicals is ill |
| sprayer will suffice for this and will Not generate | | | | advised and far better to rely on the tryed and |
| much pressure and will not damage the brickwork | | | | tested methods described . |
| or excessive over-spay. A flood coat should be | | | | The same process applies to patios and concrete |
| applied to the surface to be Treated commencing | | | | driveways making sure not to let the over-spay |
| at the top of a vertical surface and moving slowly | | | | affect gardens and boarders . last but Not least |
| across horizontally allowing the run down about six | | | | wash out all spraying equipment and store your |
| inch.The next coat to be applied to the previous | | | | poisons in a securely locked cabinet. |
| run down .the treated area to be left for several | | | | |