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We have a hedge of about 30 alders which were cut with an electric hedge-cutter about a month ago. Noticed, a week or so ago, that many of the leaves are curling and have, mostly either side of the spine, rows of 'pimples', each 3-5 mm in diameter. They seem to start being pale g...

The video was about pruning out canker, not gooseberries! I agree! Please will someone change the4 link! My goosberries are running riot!

This spring I cut down a 3 year columnar sunburst cherry as I think it had canker. It was very sick anyway. Can I plant a stella cherry in or near the same site?

This year my cherry blossom tree has some blossom, but not much and no leaves.  The tree is well established, at least 20 years old. Is there anything I can do? Any signs of any canker or anything like that?

i have a three year old ornamental cherry tree with red leaves which are falling and the leaves have small holes in them and a little curled and ugly....what is wrong with it?? Possibly bacterial canker. Full description and treatment details here.

A general term (also see Canker) covering a large number of plant diseases sharing similar symptoms, namely patches of dead tissue on leaves or stems. These are caused by a range of organisms, including fungi, bacteria, mycoplasmas and viruses.

My damson tree has developed sticky yellowy lumps of  weeping orangey yellow goo. What is it please? Susan Amber-coloured gum coming from stone-fruit trees (plums, peach, etc) is usually a symptom of canker, which is a bacterial infection.I believe

The leaves on my apple trees are open now and some are distorted as tho the central vein is too short and others have blisters on one side of the leaf usually red in colour. Anyone know what this problem is? could be blight or canker,

needed please.   My idea is to wait 'till June/July and then cut back the branches to the new leaves - is this wise? Yes, it is. It sounds like your tree has canker - look here for description and treatment options. Thanks Alina, I will try to save it

My damson tree has developed sticky looking lumps of weeping yelowy-orange goo on the whole of one limb.What is it, please? Suzi Could it be canker? Check here. Has your tree been damaged? Perhaps it is a slime mould. I think you can just wash them