London (change)
Today 9°C / 9°C
Tomorrow 11°C / 10°C
5 messages
03/07/2012 at 11:13

http://s3.gardenersworld.com/uploads/images/original/9516.jpg?width=371&height=350&mode=max

Please see picture above.

I have a row of conifers at the front of the house which seperates the drives from our neighbours.They are about four years old and this season four of them in the middle of the row have developed brown branches/leaves,which have sudsequently died.I have cut the branches back but I am unsure of the reasons why this has happened.Any advice would be most welcome.

03/07/2012 at 12:16

Cypress aphid can cause this. The RHS has a section on their website about brown patches on conifers. Areas that have died do not grow back, in my limited experience.

03/07/2012 at 12:52
Gardening Grandma wrote (see)

... The RHS has a section on their website about brown patches on conifers. ...

The RHS page of advice is here:
http://apps.rhs.org.uk/advicesearch/profile.aspx?pid=132

There are many possible causes. The section on prevention and control is here:
http://apps.rhs.org.uk/advicesearch/profile.aspx?pid=132#section4

I have a large conifer in my garden. A few years ago several large areas of the tree went brown, and apparently died. I hadn't pruned or trimed the tree, so this was most likely caused by disease or an insect. I cut out all of the brown wood. The rest of the tree survived. Now, the tree looks perfectly healthy, apart from the fact that half the tree is missing, due to the huge chunks that I cut out...

http://i849.photobucket.com/albums/ab51/falcosubbuteo/conifer.jpg

 

03/07/2012 at 14:49

Just a thought. If they are next to a drive, I suppose no noxious substance like oil has been spilt on their roots?  

04/07/2012 at 10:46

I was thinking salt poisoning - from salting the driveway when icey, or run off salt from roads, or wind damage or both.

email image
5 messages