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  • This reply was deleted.
    • PRO

      Hopefully not the latter! I wondered if the client had watered them (with water!) in full sun? Could that cause it?

    • PRO Supplier

      Can't really tell but if they are low enough it could be dog urine?

      • looks like they are either side of a front door, if there is domestic cctv maybe worth rewinding the recording on the hard drive to catch the culprit, and if coupled with a strange smell on the affected plants, hey presto, "urine" luck

  • At first glance, it look like Box Blight. If you got any more box plants that are not affected,I would be tempted to take the infected ones out before it spread. A real shame if that's case. Also ensure you clean your tools thoroughly to reduce contamination.
    • This reply was deleted.
      • You are right in some ways but using a fungicide is an ongoing regime and the fungicide is a suppressant. That is one of the reasons why buying new plants in you should hold them in quarantine to see if any diseases emerge as whole sellers liberally spray their plants with a cocktail of chemicals to 'preserve' them.
  • Could replace them with Ilex crenata, they are being used to replace box because of the blight they suffer from. The Ilex has very similar foliage and habit.

  • PRO Supplier

    Lot of research done on box blight - especially on the continent.

    Fungicides are mostly preventative as Andrew says but there are some who have curative effects on BB. Need a combination approach of products to guard against resistance buildup - cost of the products may outweigh cost of replacement in this case though. At least remove all the dead leaves from the bush and around the base regularly as they harbour the spores that spread the blight disease. Clean any cutting tools...

    Richard@Progreen

    • PRO

      i can add that yes the chemical processes do work 

      at one of my clients we have three thousand five hundred in usual low hedge style, we noticed blight this time last year on around fifty plus plants

      we managed to get a early dec hit with a preventative ( copper fungicide ? )  and have had two this year ,on top of that have used top buxus as a general health spray every 6 weeks through growing season 

      i know this isnt going to cure the problem but the plants look outstanding -- growth rate excellent and extremely healthy looking plants presently -- you really wouldnt tell that blight had hit in fact they amazing 

      i would suggest the top buxus is the main reason they look so good , the fungicide is just holding the blight back. Must say however i havent pruned them yet this year and slightly dreading it as we know thats the time it all kicks off again 

      as above though - the cost hasnt been huge but clearly doesnt work out unless theres a  lot of box 

  • PRO

    So no-one thinks it's from being watered in full sun?  They are too high/big for dog urine etc.

    • PRO

      you have far more than scorching -- next time there look at the plants in detail - looks like damage in clusters that penetrate the core of the plant 

      it looks massively like blight and this is EXACTLY the time it shows and once again we have a perfect storm weather pattern 

      blight is here and its this time of year it shows it self  - you could id plants that have entered the garden this year -- or possible causes of cross contamination but it could be neighbors , visitors or many other possibilities  

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