Seldom do I feel an item is worthy of absolute praise; or at least I loathe recommending something that I may still have an odd doubt about.
However, on this occasion I have no doubts whatsoever in recommending the Bark cleaner and Algae remover available from Graham Potter at Kaizen. Direct link here
The following text is credited to Kaizen.
‘Following three years of research and testing Kaizen Bonsai Ltd is pleased to introduce yet another amazing new product. Our Bark Cleaner and Algae Remover uses the very latest technology to solve the problem outlined above. By using the latest advances in micro surface technology our product harnesses the power of sunlight to lift algae away from the supporting surface, it then simply dries up and blows away. All you have to do is spray the area you want clean until it is evenly damp, put it in the sun and walk away, that’s it, no scrubbing or rinsing just a light spray and you’re finished. Unlike some algae removers such as sodium hydroxide, acids and toxic pesticides our product is very safe. Vapor free, non toxic and non hazardous to the user. Safe on wood, timber, ceramics, stone, glass and most plastics. Water based non corrosive Fully compliant with HSE 6830 Easy ready to use spray dispenser. Very economical to use, a little goes a long way. Keeps bark clean for up to 6 months in most situations. Long storage life.’
End of reproduced text.
For once, I can truly say this product actually does everything that is claimed of it. I have mainly used it on deciduous trees but have also tried it on evergreens; but of course with the latter I have been fairly careful … just in case.
My Beech group which was as green as green could be, was simply sprayed all over, left in the sun for a couple of days and every single trace of algae was gone. In the past I have found also that the effects last! Only having to spray at the front end of the season. It is good value for money and goes a long-long way. I see Kaizen now have it available in one litre containers.