Field grown trident

[craigw60]

Thanks Neil thats good information re palmatums, I was looking at mine yesterday and wondering if I should start on them but will now leave it.
I find the chinese quince need to be done quite early in the winter as they come into leaf quite quickly after dropping their autumn leaves.
Hard to imagine dry soil at the moment its been sticking to my boots here for months.
Craigw

[kcpoole]

I do prefer to leave Acer palmatum until the last because I have had losses with them when repotted early winter. They seem to get a fungal attack if kept wet while they have fresh cuts - symptoms show up when they come into leaf - new leaves wilt and die and bark turns black below ground and just above. Not certain if early root pruning is the cause but still play it safe until I know more.

H Shibui, this description explains exactly what has happened to me with several maples of mine after repotting. Both Trident and Japanese maples have been lost!.
I pot into Diatomite so did not think that they stay wet
Also do not remember if they were done earlier in winter, but wil leave them now as late as possible and apply a fungicide to them as well.

Ken

[Matthew]

Craig

Gibbsland and your way is wet to the feet . The NE atm is well below average im hoping some decent rain comes soon

[Scott Roxburgh]

I do prefer to leave Acer palmatum until the last because I have had losses with them when repotted early winter. They seem to get a fungal attack if kept wet while they have fresh cuts - symptoms show up when they come into leaf - new leaves wilt and die and bark turns black below ground and just above.

H Shibui, this description explains exactly what has happened to me with several maples of mine after repotting. Both Trident and Japanese maples have been lost!

I've had this issue too, but don't know what causes it? It mostly effected weaker trees though, trees growing strongly didn't have the problem?

Last winter I started to use diluted lime sulphur and frequent fungicide treatments and didn't have the problem.

Perhaps it is either:
Pseudomonas syringae, or Verticillium wilt?

http://crataegus.com/2011/11/29/read-th ... ese-maple/

[kcpoole]

Hi Scott
How did you apply the LS?
Dilute and put into a spray bottle? and spray the entire tree?

Ken

[Scott Roxburgh]

Hi Scott
How did you apply the LS?
Dilute and put into a spray bottle? and spray the entire tree?

Ken

Wait for all leaves to come off, avoid open wounds (they are sealed with cut paste anyway), dilute as the packet recommends, put it in a spray bottle and spray the tree all over with the mist setting. Careful not to spray the soil or pot.

[Webos]

This is the answer I have been looking for for more than a year... Too bad its probabaly much too late for my big beautiful maple.